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