public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
System.Web.UI.Control instance = (System.Web.UI.Control) context.Instance;
IServiceProvider site = instance.Site;
if (site == null)
{
if (instance.Page != null)
{
site = instance.Page.Site;
}
if (site == null)
{
site = provider;
}
}
if (site != null)
{
DesignerTransaction transaction = ((IDesignerHost) site.GetService(typeof(IDesignerHost))).CreateTransaction("(Expressions)");
try
{
IComponentChangeService service = (IComponentChangeService) site.GetService(typeof(IComponentChangeService));
if (service != null)
{
try
{
service.OnComponentChanging(instance, null);
}
catch (CheckoutException exception)
{
if (exception != CheckoutException.Canceled)
{
throw exception;
}
return value;
}
}
DialogResult cancel = DialogResult.Cancel;
try
{
ExpressionBindingsDialog dialog = new ExpressionBindingsDialog(site, instance);
cancel = ((IWindowsFormsEditorService) provider.GetService(typeof(IWindowsFormsEditorService))).ShowDialog(dialog);
}
finally
{
if ((cancel == DialogResult.OK) && (service != null))
{
try
{
service.OnComponentChanged(instance, null, null, null);
}
catch
{
}
}
}
}
finally
{
transaction.Commit();
}
}
return value;
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
System.Web.UI.Control instance = (System.Web.UI.Control)context.Instance;
IServiceProvider site = instance.Site;
if (site == null)
{
if (instance.Page != null)
{
site = instance.Page.Site;
}
if (site == null)
{
site = provider;
}
}
if (site != null)
{
DesignerTransaction transaction = ((IDesignerHost)site.GetService(typeof(IDesignerHost))).CreateTransaction("(Expressions)");
try
{
IComponentChangeService service = (IComponentChangeService)site.GetService(typeof(IComponentChangeService));
if (service != null)
{
try
{
service.OnComponentChanging(instance, null);
}
catch (CheckoutException exception)
{
if (exception != CheckoutException.Canceled)
{
throw exception;
}
return(value);
}
}
DialogResult cancel = DialogResult.Cancel;
try
{
ExpressionBindingsDialog dialog = new ExpressionBindingsDialog(site, instance);
cancel = ((IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService))).ShowDialog(dialog);
}
finally
{
if ((cancel == DialogResult.OK) && (service != null))
{
try
{
service.OnComponentChanged(instance, null, null, null);
}
catch
{
}
}
}
}
finally
{
transaction.Commit();
}
}
return(value);
}