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Set MaxDropDownItems for Combobox in Grid

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95416 Jul 7,2010 03:59 AM Jul 9,2010 06:33 AM ASP.NET Web Forms (Classic) 1
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Tags: GridGroupingControl
Sven Knebel
Asked On July 7, 2010 03:59 AM

Hi,

I am using the following code to display a combox in a grid:

cellStyle.CellType = GridCellTypeName.ComboBox;
cellStyle.ChoiceList = new System.Collections.Specialized.StringCollection();
cellStyle.ChoiceList.AddRange(values);

where cellStyle is of type GridStyleInfo.

How can I set the property MaxDropDownItems of the combobox, so that no scrollbars are display. Currently it seems to be set to 5.

Thanks

Jisha Joy [Syncfusion]
Replied On July 9, 2010 06:33 AM

Hi Knebel,

Thank you for using Syncfusion products.

The number of items to be displayed in dropdownpart while combobox is dropped down, can be set through the DropDownRows property of ListBoxPart in the GridComboBoxCellRenderer class.

Refer the code below:

GridComboBoxCellRenderer rend = this.gridControl1.Model.CellRenderers["ComboBox"] as GridComboBoxCellRenderer;
GridComboBoxListBoxPart lbpart = rend.ListBoxPart as GridComboBoxListBoxPart;
lbpart.DropDownRows = 10;

This code gets the renderer object of the combobox cells in grid and assigns the dropdownrows count to 10. Now, on dropping down the combobox, 10 items can be viewed at a time without a need to scroll.

Regards,
Jisha

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