You may use the extension methods - ChildrenOfType<> and ParentOfType<>. Thus, the implementation of the TextInputStart event may look like:
private void txtCalc_TextInputStart(object sender, TextCompositionEventArgs e)
TextBox textBox = sender as TextBox;
GridViewRow parentRow = textBox.ParentOfType<
RadComboBox combo = parentRow.ChildrenOfType<
RadButton button = parentRow.ChildrenOfType<
if (combo != null && button != null)
combo.IsEnabled = true;
button.IsEnabled = true;
You may take a look at this blog post
for further reference.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items