/// <devdoc>
/// Returns an IEnumerable that is the DataSource, which either came
/// from the DataSource property or from the control bound via the
/// DataSourceID property.
/// </devdoc>
protected virtual IEnumerable GetData()
{
DataSourceView view = ConnectToDataSourceView();
Debug.Assert(_currentViewValid);
if (view != null)
{
// DevDiv 1070535: enable async model binding for Repeater
bool useAsyncSelect = false;
if (AppSettings.EnableAsyncModelBinding)
{
var modelDataView = view as ModelDataSourceView;
useAsyncSelect = modelDataView != null && modelDataView.IsSelectMethodAsync;
}
if (useAsyncSelect)
{
_asyncSelectPending = true; // disable post data binding action until the callback is invoked
view.Select(SelectArguments, OnDataSourceViewSelectCallback);
}
else
{
return(view.ExecuteSelect(SelectArguments));
}
}
return(null);
}
protected override void OnDataBinding(EventArgs e)
{
base.OnDataBinding(e);
DataSourceView view = GetData();
// view could be null when a user implements his own GetData().
if (null == view)
{
throw new InvalidOperationException(SR.GetString(SR.DataControl_ViewNotFound, ID));
}
// DevDiv 1036362: enable async model binding for ListControl
bool useAsyncSelect = false;
if (AppSettings.EnableAsyncModelBinding)
{
var modelDataView = view as ModelDataSourceView;
useAsyncSelect = modelDataView != null && modelDataView.IsSelectMethodAsync;
}
if (useAsyncSelect)
{
_asyncSelectPending = true; // disable post data binding action until the callback is invoked
view.Select(SelectArguments, OnDataSourceViewSelectCallback);
}
else
{
IEnumerable data = view.ExecuteSelect(DataSourceSelectArguments.Empty);
PerformDataBinding(data);
}
}
protected virtual IEnumerable GetData()
{
DataSourceView view = this.ConnectToDataSourceView();
if (view != null)
{
return(view.ExecuteSelect(this.SelectArguments));
}
return(null);
}
/// <devdoc>
/// Returns an IEnumerable that is the DataSource, which either came
/// from the DataSource property or from the control bound via the
/// DataSourceID property.
/// </devdoc>
protected virtual IEnumerable GetData()
{
DataSourceView view = ConnectToDataSourceView();
Debug.Assert(_currentViewValid);
if (view != null)
{
return(view.ExecuteSelect(DataSourceSelectArguments.Empty));
}
return(null);
}