/// <summary>
/// Handles changes in the datasource selection.
/// </summary>
private void OnSelChangedDataSource(Object source, EventArgs e)
{
if (IsLoading())
{
return;
}
DataSourceItem newDataSource = null;
if (_cmbDataSource.IsSet())
{
newDataSource = (DataSourceItem)_cmbDataSource.SelectedItem;
}
if (newDataSource != null)
{
if (newDataSource.IsSelectable() == false)
{
using (new LoadingModeResource(this))
{
if (_currentDataSource == null)
{
_cmbDataSource.SelectedIndex = -1;
}
else
{
_cmbDataSource.SelectedItem = _currentDataSource;
}
}
return;
}
}
_currentDataSource = newDataSource;
if (_currentDataSource is ListSourceDataSourceItem)
{
((ListSourceDataSourceItem)_currentDataSource).CurrentDataMember = null;
}
_dataSourceDirty = true;
LoadDataMembers();
LoadDataSourceFields();
SetDirty();
UpdateEnabledVisibleState();
}
/// <include file='doc\DataGridGeneralPage.uex' path='docs/doc[@for="DataGridGeneralPage.OnSelChangedDataSource"]/*' />
/// <devdoc>
/// Handles changes in the datasource selection.
/// </devdoc>
private void OnSelChangedDataSource(object source, EventArgs e)
{
if (IsLoading())
{
return;
}
DataSourceItem newDataSource = null;
if (dataSourceCombo.IsSet())
{
newDataSource = (DataSourceItem)dataSourceCombo.SelectedItem;
}
if (newDataSource != null)
{
if (newDataSource.IsSelectable() == false)
{
EnterLoadingMode();
if (currentDataSource == null)
{
dataSourceCombo.SelectedIndex = -1;
}
else
{
dataSourceCombo.SelectedItem = currentDataSource;
}
ExitLoadingMode();
return;
}
}
currentDataSource = newDataSource;
if (currentDataSource is ListSourceDataSourceItem)
{
((ListSourceDataSourceItem)currentDataSource).CurrentDataMember = null;
}
LoadDataMembers();
LoadDataSourceFields();
dataSourceDirty = true;
SetDirty();
UpdateEnabledVisibleState();
}