134 lines
4.7 KiB
C#
134 lines
4.7 KiB
C#
//
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// System.Web.UI.WebControls.AccessDataSource.cs
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//
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// Authors:
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// Sanjay Gupta (gsanjay@novell.com)
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//
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// Copyright (C) 2004-2010 Novell, Inc (http://www.novell.com)
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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.IO;
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using System.ComponentModel;
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using System.Data.Common;
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using System.Drawing;
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using System.Security.Permissions;
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namespace System.Web.UI.WebControls
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{
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// CAS
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[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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// attributes
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[DesignerAttribute ("System.Web.UI.Design.WebControls.AccessDataSourceDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
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[ToolboxBitmap ("")]
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public class AccessDataSource : SqlDataSource
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{
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const string PROVIDER_NAME = "System.Data.OleDb";
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const string PROVIDER_STRING = "Microsoft.Jet.OLEDB.4.0";
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//string dataFile;
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string connectionString;
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public AccessDataSource () : base ()
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{
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base.ProviderName = PROVIDER_NAME;
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}
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public AccessDataSource (string dataFile, string selectCommand) :
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base (String.Empty, selectCommand)
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{
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//this.dataFile = dataFile;
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this.ProviderName = PROVIDER_NAME;
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}
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protected override SqlDataSourceView CreateDataSourceView (string viewName)
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{
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AccessDataSourceView view = new AccessDataSourceView (this, viewName, this.Context);
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if (IsTrackingViewState)
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((IStateManager) view).TrackViewState ();
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return view;
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}
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
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[Browsable (false)]
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[MonoTODO("AccessDataSource does not support SQL Cache Dependencies")]
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public override string SqlCacheDependency {
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get { throw new NotSupportedException ("AccessDataSource does not supports SQL Cache Dependencies."); }
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set { throw new NotSupportedException ("AccessDataSource does not supports SQL Cache Dependencies."); }
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}
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[MonoTODO ("why override? maybe it doesn't call DbProviderFactories.GetFactory?")]
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protected override DbProviderFactory GetDbProviderFactory ()
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{
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return DbProviderFactories.GetFactory (PROVIDER_NAME);
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}
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string GetPhysicalDataFilePath ()
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{
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if (String.IsNullOrEmpty (DataFile))
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return String.Empty;
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// more here? how do we handle |DataDirectory|?
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return HttpContext.Current.Request.MapPath (DataFile);
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}
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[BrowsableAttribute (false),
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DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
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public override string ConnectionString {
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get {
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if (connectionString == null) {
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connectionString = String.Concat ("Provider=", PROVIDER_STRING, "; Data Source=", GetPhysicalDataFilePath ());
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}
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return connectionString;
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}
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set {
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throw new InvalidOperationException
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("The ConnectionString is automatically generated for AccessDataSource and hence cannot be set.");
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}
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}
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[UrlPropertyAttribute]
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[DefaultValueAttribute ("")]
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[WebCategoryAttribute ("Data")]
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[WebSysDescriptionAttribute ("MS Office Access database file name")]
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[EditorAttribute ("System.Web.UI.Design.MdbDataFileEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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public string DataFile {
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get { return ViewState.GetString ("DataFile", String.Empty); }
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set {
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ViewState ["DataFile"] = value;
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connectionString = null;
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}
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}
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[BrowsableAttribute (false),
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DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
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public override string ProviderName {
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get { return base.ProviderName; }
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set { throw new InvalidOperationException
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("Setting ProviderName on an AccessDataSource is not allowed");
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}
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}
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}
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}
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