434 lines
13 KiB
C#
434 lines
13 KiB
C#
//
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// System.Web.UI.WebControls.ObjectDataSource
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//
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// Authors:
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// Lluis Sanchez Gual (lluis@novell.com)
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//
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// (C) 2005 Novell, Inc. (http://www.novell.com)
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Collections;
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using System.Collections.Specialized;
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using System.ComponentModel;
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using System.IO;
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using System.Security.Permissions;
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using System.Drawing;
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namespace System.Web.UI.WebControls
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{
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[DefaultEventAttribute ("Selecting")]
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[DefaultPropertyAttribute ("TypeName")]
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[DesignerAttribute ("System.Web.UI.Design.WebControls.ObjectDataSourceDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
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[ParseChildrenAttribute (true)]
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[PersistChildrenAttribute (false)]
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[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[ToolboxBitmap ("bitmap file goes here")]
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public class ObjectDataSource : DataSourceControl
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{
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static readonly string [] emptyNames = new string [] { "DefaultView" };
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ObjectDataSourceView defaultView;
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int cacheDuration = 0;
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bool enableCaching = false;
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string cacheKeyDependency = null;
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string sqlCacheDependency = null;
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DataSourceCacheManager cache = null;
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DataSourceCacheExpiry cacheExpirationPolicy = DataSourceCacheExpiry.Absolute;
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public ObjectDataSource ()
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{
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}
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public ObjectDataSource (string typeName, string selectMethod)
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{
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SelectMethod = selectMethod;
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TypeName = typeName;
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}
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ObjectDataSourceView DefaultView {
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get {
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if (defaultView == null) {
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defaultView = new ObjectDataSourceView (this, emptyNames [0], Context);
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if (IsTrackingViewState)
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((IStateManager) defaultView).TrackViewState ();
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}
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return defaultView;
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}
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}
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public event ObjectDataSourceStatusEventHandler Deleted {
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add { DefaultView.Deleted += value; }
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remove { DefaultView.Deleted -= value; }
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}
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public event ObjectDataSourceMethodEventHandler Deleting {
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add { DefaultView.Deleting += value; }
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remove { DefaultView.Deleting -= value; }
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}
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public event ObjectDataSourceFilteringEventHandler Filtering {
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add { DefaultView.Filtering += value; }
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remove { DefaultView.Filtering -= value; }
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}
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public event ObjectDataSourceStatusEventHandler Inserted {
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add { DefaultView.Inserted += value; }
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remove { DefaultView.Inserted -= value; }
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}
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public event ObjectDataSourceMethodEventHandler Inserting {
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add { DefaultView.Inserting += value; }
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remove { DefaultView.Inserting -= value; }
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}
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public event ObjectDataSourceObjectEventHandler ObjectCreated {
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add { DefaultView.ObjectCreated += value; }
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remove { DefaultView.ObjectCreated -= value; }
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}
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public event ObjectDataSourceObjectEventHandler ObjectCreating {
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add { DefaultView.ObjectCreating += value; }
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remove { DefaultView.ObjectCreating -= value; }
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}
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public event ObjectDataSourceDisposingEventHandler ObjectDisposing {
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add { DefaultView.ObjectDisposing += value; }
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remove { DefaultView.ObjectDisposing -= value; }
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}
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/* public event ObjectDataSourceResolvingMethodEventHandler ResolvingMethod {
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add { DefaultView.ResolvingMethod += value; }
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remove { DefaultView.ResolvingMethod -= value; }
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}
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*/
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public event ObjectDataSourceStatusEventHandler Selected {
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add { DefaultView.Selected += value; }
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remove { DefaultView.Selected -= value; }
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}
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public event ObjectDataSourceSelectingEventHandler Selecting {
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add { DefaultView.Selecting += value; }
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remove { DefaultView.Selecting -= value; }
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}
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public event ObjectDataSourceStatusEventHandler Updated {
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add { DefaultView.Updated += value; }
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remove { DefaultView.Updated -= value; }
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}
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public event ObjectDataSourceMethodEventHandler Updating {
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add { DefaultView.Updating += value; }
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remove { DefaultView.Updating -= value; }
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}
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[DefaultValue (0)]
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[TypeConverter (typeof (DataSourceCacheDurationConverter))]
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public virtual int CacheDuration
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{
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get {
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return cacheDuration;
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}
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set {
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if (value < 0)
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throw new ArgumentOutOfRangeException ("value", "The duration must be non-negative");
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cacheDuration = value;
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}
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}
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[DefaultValue (DataSourceCacheExpiry.Absolute)]
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public virtual DataSourceCacheExpiry CacheExpirationPolicy
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{
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get {
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return cacheExpirationPolicy;
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}
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set {
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cacheExpirationPolicy = value;
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}
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}
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[DefaultValue ("")]
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public virtual string CacheKeyDependency
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{
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get {
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return cacheKeyDependency != null ? cacheKeyDependency : string.Empty;
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}
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set {
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cacheKeyDependency = value;
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}
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}
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[WebCategoryAttribute ("Data")]
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[DefaultValueAttribute (ConflictOptions.OverwriteChanges)]
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public ConflictOptions ConflictDetection {
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get { return DefaultView.ConflictDetection; }
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set { DefaultView.ConflictDetection = value; }
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}
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[DefaultValue (false)]
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public bool ConvertNullToDBNull
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{
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get {
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return DefaultView.ConvertNullToDBNull;
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}
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set {
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DefaultView.ConvertNullToDBNull = value;
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}
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}
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[WebCategoryAttribute ("Data")]
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[DefaultValueAttribute ("")]
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public string DataObjectTypeName {
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get { return DefaultView.DataObjectTypeName; }
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set { DefaultView.DataObjectTypeName = value; }
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}
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[WebCategoryAttribute ("Data")]
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[DefaultValueAttribute ("")]
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public string DeleteMethod {
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get { return DefaultView.DeleteMethod; }
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set { DefaultView.DeleteMethod = value; }
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}
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[WebCategoryAttribute ("Data")]
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[MergablePropertyAttribute (false)]
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[EditorAttribute ("System.Web.UI.Design.WebControls.ParameterCollectionEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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[DefaultValueAttribute (null)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public ParameterCollection DeleteParameters {
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get { return DefaultView.DeleteParameters; }
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}
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[DefaultValue (false)]
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public virtual bool EnableCaching {
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get { return enableCaching; }
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set { enableCaching = value; }
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}
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[WebCategoryAttribute ("Paging")]
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[DefaultValueAttribute (false)]
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public bool EnablePaging {
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get { return DefaultView.EnablePaging; }
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set { DefaultView.EnablePaging = value; }
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}
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[WebCategoryAttribute ("Data")]
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[DefaultValueAttribute ("")]
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public string FilterExpression {
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get { return DefaultView.FilterExpression; }
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set { DefaultView.FilterExpression = value; }
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}
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[WebCategoryAttribute ("Data")]
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[MergablePropertyAttribute (false)]
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[EditorAttribute ("System.Web.UI.Design.WebControls.ParameterCollectionEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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[DefaultValueAttribute (null)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public ParameterCollection FilterParameters {
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get { return DefaultView.FilterParameters; }
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}
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[DefaultValueAttribute ("")]
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[WebCategoryAttribute ("Data")]
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public string InsertMethod {
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get { return DefaultView.InsertMethod; }
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set { DefaultView.InsertMethod = value; }
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}
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[WebCategoryAttribute ("Data")]
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[MergablePropertyAttribute (false)]
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[EditorAttribute ("System.Web.UI.Design.WebControls.ParameterCollectionEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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[DefaultValueAttribute (null)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public ParameterCollection InsertParameters {
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get { return DefaultView.InsertParameters; }
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}
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[WebCategoryAttribute ("Paging")]
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[DefaultValueAttribute ("maximumRows")]
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public string MaximumRowsParameterName {
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get { return DefaultView.MaximumRowsParameterName; }
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set { DefaultView.MaximumRowsParameterName = value; }
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}
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[WebCategoryAttribute ("Data")]
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[DefaultValueAttribute ("{0}")]
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public string OldValuesParameterFormatString {
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get { return DefaultView.OldValuesParameterFormatString; }
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set { DefaultView.OldValuesParameterFormatString = value; }
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}
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[WebCategoryAttribute ("Paging")]
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[DefaultValueAttribute ("")]
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public string SelectCountMethod {
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get { return DefaultView.SelectCountMethod; }
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set { DefaultView.SelectCountMethod = value; }
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}
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[DefaultValueAttribute ("")]
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[WebCategoryAttribute ("Data")]
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public string SelectMethod {
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get { return DefaultView.SelectMethod; }
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set { DefaultView.SelectMethod = value; }
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}
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[WebCategoryAttribute ("Data")]
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[MergablePropertyAttribute (false)]
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[EditorAttribute ("System.Web.UI.Design.WebControls.ParameterCollectionEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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[DefaultValueAttribute (null)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public ParameterCollection SelectParameters {
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get { return DefaultView.SelectParameters; }
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}
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[DefaultValueAttribute ("")]
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[WebCategoryAttribute ("Data")]
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public string SortParameterName {
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get { return DefaultView.SortParameterName; }
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set { DefaultView.SortParameterName = value; }
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}
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[MonoTODO ("SQLServer specific")]
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[DefaultValue ("")]
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public virtual string SqlCacheDependency {
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get { return sqlCacheDependency != null ? sqlCacheDependency : string.Empty; }
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set { sqlCacheDependency = value; }
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}
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[WebCategoryAttribute ("Paging")]
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[DefaultValueAttribute ("startRowIndex")]
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public string StartRowIndexParameterName {
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get { return DefaultView.StartRowIndexParameterName; }
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set { DefaultView.StartRowIndexParameterName = value; }
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}
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[DefaultValueAttribute ("")]
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[WebCategoryAttribute ("Data")]
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public string TypeName {
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get { return DefaultView.TypeName; }
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set { DefaultView.TypeName = value; }
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}
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[DefaultValueAttribute ("")]
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[WebCategoryAttribute ("Data")]
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public string UpdateMethod {
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get { return DefaultView.UpdateMethod; }
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set { DefaultView.UpdateMethod = value; }
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}
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[WebCategoryAttribute ("Data")]
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[MergablePropertyAttribute (false)]
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[EditorAttribute ("System.Web.UI.Design.WebControls.ParameterCollectionEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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[DefaultValueAttribute (null)]
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[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
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public ParameterCollection UpdateParameters {
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get { return DefaultView.UpdateParameters; }
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}
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internal DataSourceCacheManager Cache {
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get {
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if (cache == null)
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cache = new DataSourceCacheManager (CacheDuration, CacheKeyDependency, CacheExpirationPolicy, this, Context);
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return cache;
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}
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}
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protected override DataSourceView GetView (string viewName)
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{
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if (viewName == null)
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throw new ArgumentException ("viewName");
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return DefaultView;
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}
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protected override ICollection GetViewNames ()
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{
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return emptyNames;
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}
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public IEnumerable Select ()
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{
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return DefaultView.Select (DataSourceSelectArguments.Empty);
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}
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public int Update ()
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{
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Hashtable empty = new Hashtable ();
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return DefaultView.Update (empty, empty, null);
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}
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public int Delete ()
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{
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Hashtable empty = new Hashtable ();
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return DefaultView.Delete (empty, null);
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}
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public int Insert ()
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{
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Hashtable empty = new Hashtable ();
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return DefaultView.Insert (empty);
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}
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protected internal override void OnInit (EventArgs e)
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{
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Page.LoadComplete += OnPageLoadComplete;
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}
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void OnPageLoadComplete (object sender, EventArgs e)
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{
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FilterParameters.UpdateValues (Context, this);
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SelectParameters.UpdateValues (Context, this);
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}
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protected override void LoadViewState (object savedState)
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{
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if (savedState == null) {
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base.LoadViewState (null);
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((IStateManager)DefaultView).LoadViewState (null);
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} else {
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Pair p = (Pair) savedState;
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base.LoadViewState (p.First);
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((IStateManager)DefaultView).LoadViewState (p.Second);
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}
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}
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protected override object SaveViewState()
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{
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object baseState = base.SaveViewState ();
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object viewState = ((IStateManager)DefaultView).SaveViewState ();
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if (baseState != null || viewState != null) return new Pair (baseState, viewState);
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else return null;
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}
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protected override void TrackViewState()
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{
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((IStateManager)DefaultView).TrackViewState ();
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}
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}
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}
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