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combobox duplicate items

Thread ID:





68652 Sep 26,2007 01:26 PM UTC Oct 2,2007 11:07 PM UTC WinForms 1
Tags: GridControl
Asked On September 26, 2007 01:26 PM UTC


I have an editable combobox in my databoundgrid that allows the user to type in 'one' or 'two'. When I open up the table, the combobox list is populated with several instances of 'one' and 'two' that I don't need. Is there a way to remove these duplicate items from the list? Thanks!

haneefm [Syncfusion]
Replied On October 2, 2007 11:07 PM UTC

Hi Coder12345,

You can handle the CurrentCellShowingDropDown event of the grid and remove the duplicated item using the gridComboBoxCellRenderer.ListBoxPart.Items.RemoveAt method. Here is a code snippet.

private void gridControl1_CurrentCellShowingDropDown(object sender, Syncfusion.Windows.Forms.Grid.GridCurrentCellShowingDropDownEventArgs e)
GridComboBoxCellRenderer cr =(GridComboBoxCellRenderer) this.gridControl1.CurrentCell.Renderer;
for (int i = 0; i < cr.ListBoxPart.Items.Count; i++)
for (int j = 0; j < cr.ListBoxPart.Items.Count; j++)
if (i != j && cr.ListBoxPart.Items[i].Equals(cr.ListBoxPart.Items[j]))

Best regards,


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