How to get the index of the currently selected item in a ComboBox cell using WinForms GridControl?

The WinForms GridControl stores the value in its style, or CellValue. When you want the selection index of the ComboBox, you can handle the CurrentCellCloseDropDown event and get the index from the list at only that point.

void gridControl1_CurrentCellCloseDropDown(object sender, Syncfusion.Windows.Forms.PopupClosedEventArgs e)
{
GridCurrentCell cc = this.gridControl1.CurrentCell;
GridComboBoxCellRenderer cr = cc.Renderer as GridComboBoxCellRenderer;
if (cr != null)
{
  // Prints the ComboBox selected index.
  Console.WriteLine(cr.ListBoxPart.SelectedIndex);
  this.textBox1.Text = cr.ListBoxPart.SelectedIndex.ToString();
}
}

Private Sub gridControl1_CurrentCellCloseDropDown(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.PopupClosedEventArgs)
Dim cc As GridCurrentCell = Me.gridControl1.CurrentCell
Dim cr As GridComboBoxCellRenderer = TryCast(cc.Renderer, GridComboBoxCellRenderer)
If cr IsNot Nothing Then
' Prints the ComboBox selected index.
Console.WriteLine(cr.ListBoxPart.SelectedIndex)
Me.textBox1.Text = cr.ListBoxPart.SelectedIndex.ToString()
End If
End Sub

Figure 1: GridControl with ComboBox

Conclusion

I hope you enjoyed learning about how to get the index of the currently selected item in a ComboBox cell using WinForms GridControl.

You can refer to our WinForms GridControl feature tour page to know about its other groundbreaking feature representations and WinForms GridControl documentation, and how to quickly get started for configuration specifications.

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