55 lines
2.1 KiB
C#
55 lines
2.1 KiB
C#
namespace System.Web.DynamicData.Util {
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using System;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.Resources;
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using System.Globalization;
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using IDataBoundControlInterface = System.Web.UI.WebControls.IDataBoundControl;
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internal static class DataControlHelper {
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internal static IDynamicDataSource FindDataSourceControl(Control current) {
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for (; ; current = current.NamingContainer) {
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// Don't look further than the Page, or if the control is not added to a page hierarchy
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if (current == null || current is Page)
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return null;
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IDataBoundControlInterface dataBoundControl = GetDataBoundControl(current, false /*failIfNotFound*/);
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// Not a data control: continue searching
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if (dataBoundControl == null) {
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continue;
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}
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// Return its DynamicDataSource
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return dataBoundControl.DataSourceObject as IDynamicDataSource;
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}
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}
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internal static IDataBoundControlInterface GetDataBoundControl(Control control, bool failIfNotFound) {
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if (control is IDataBoundControlInterface) {
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return (IDataBoundControlInterface)control;
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}
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IDataBoundControlInterface dataBoundControl = null;
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if (control is Repeater) {
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dataBoundControl = GetControlAdapter(control);
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}
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if (dataBoundControl == null && failIfNotFound) {
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throw new Exception(String.Format(
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CultureInfo.CurrentCulture,
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DynamicDataResources.DynamicDataManager_UnsupportedControl,
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control.GetType()));
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}
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return dataBoundControl;
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}
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internal static IDataBoundControlInterface GetControlAdapter(Control control) {
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Repeater repeater = control as Repeater;
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if (repeater != null) {
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return new RepeaterDataBoundAdapter(repeater);
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}
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return null;
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}
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}
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}
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