How to: Set Custom Height for Specific Items in ListBoxControl

Oct 25, 2019

The following example shows how to set a custom height for specific items in a ListBoxControl by handling the BaseListBoxControl.MeasureItem event.

In this example, if a specific item contains a NewLine character (“\r\n” in C#), its height is doubled to fully display the item’s text.

C#
VB.NET

csharp

using DevExpress.XtraEditors;

private void listBoxControl1_MeasureItem(object sender, MeasureItemEventArgs e) {
    ListBoxControl lb = sender as ListBoxControl;
    string itemValue = (string)lb.Items[e.Index];
    if (itemValue.Contains("\r\n"))
        e.ItemHeight = e.ItemHeight * 2;            
}

Imports DevExpress.XtraEditors

Private Sub ListBoxControl1_MeasureItem(ByVal sender As System.Object, _
  ByVal e As MeasureItemEventArgs) Handles ListBoxControl1.MeasureItem
    Dim lb As ListBoxControl = sender
    Dim itemValue As String = lb.Items(e.Index)
    If (itemValue.Contains(vbCrLf)) Then e.ItemHeight = e.ItemHeight * 2
End Sub