How to validate text entered for a new node label in WinForms TreeViewAdv?
Validate the text entered for new label
The NodeEditorValidating event of the TreeViewAdv control to validate the node's label text entered by the user.
C#
private void treeViewAdv1_NodeEditorValidating(object sender, Syncfusion.Windows.Forms.Tools.TreeNodeAdvCancelableEditEventArgs e)
{
if(e.Label.Length == 0)
{
//Cancel the label edit action, inform the user, and place the node in edit mode again.
e.Cancel = true;
MessageBox.Show("The label cannot be blank", "Node Label Edit");
//To end editing mode,call:
e.ContinueEditing = false;
}
}
VB
Private Sub treeViewAdv1_NodeEditorValidating(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Tools.TreeNodeAdvCancelableEditEventArgs)
If e.Label.Length = 0 Then
' Cancel the label edit action, inform the user, and place the node in edit mode again.
e.Cancel = True
MessageBox.Show("The label cannot be blank", "Node Label Edit")
' To end editing mode,call:
e.ContinueEditing = false;
End If
End Sub
Conclusion
I hope you enjoyed learning about how to validate text entered for a new node label in WinForms TreeViewAdv.
You can refer to our WinForms TreeView feature tour page to know about its other groundbreaking feature representations. You can also explore our WinForms TreeView documentation to understand how to create and manipulate data.
For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our other controls.
If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!
