69 lines
2.5 KiB
C#
69 lines
2.5 KiB
C#
namespace System.Web.DynamicData {
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using System.Collections;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Web.DynamicData.Util;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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public class DefaultAutoFieldGenerator : IAutoFieldGenerator {
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private IMetaTable _metaTable;
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public DefaultAutoFieldGenerator(MetaTable table)
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: this((IMetaTable)table) {
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}
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internal DefaultAutoFieldGenerator(IMetaTable table) {
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if (table == null) {
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throw new ArgumentNullException("table");
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}
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_metaTable = table;
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}
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public ICollection GenerateFields(Control control) {
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DataBoundControlMode mode = GetMode(control);
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ContainerType containerType = GetControlContainerType(control);
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// Auto-generate fields from metadata.
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List<DynamicField> fields = new List<DynamicField>();
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foreach (MetaColumn column in _metaTable.GetScaffoldColumns(mode, containerType)) {
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fields.Add(CreateField(column, containerType, mode));
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}
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return fields;
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}
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protected virtual DynamicField CreateField(MetaColumn column, ContainerType containerType, DataBoundControlMode mode) {
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string headerText = (containerType == ContainerType.List ? column.ShortDisplayName : column.DisplayName);
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var field = new DynamicField() {
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DataField = column.Name,
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HeaderText = headerText
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};
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// Turn wrapping off by default so that error messages don't show up on the next line.
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field.ItemStyle.Wrap = false;
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return field;
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}
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internal static ContainerType GetControlContainerType(Control control) {
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if (control is IDataBoundListControl || control is Repeater) {
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return ContainerType.List;
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} else if (control is IDataBoundItemControl) {
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return ContainerType.Item;
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}
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return ContainerType.List;
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}
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internal static DataBoundControlMode GetMode(Control control) {
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// Only item controls have distinct modes
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IDataBoundItemControl itemControl = control as IDataBoundItemControl;
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if (itemControl != null && GetControlContainerType(control) != ContainerType.List) {
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return itemControl.Mode;
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}
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return DataBoundControlMode.ReadOnly;
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}
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}
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}
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