Telerik ASP.NET Grid - format the GridNumericColumn decimal places on edit
By default, when a RadGrid GridNumericColumn displays numbers in edit mode, it will display the minimum decimal places. In order to have consistent formatting, use the code below
<telerik:GridNumericColumn HeaderText ="Quantity" DataField ="Quantity" AllowRounding="true" DecimalDigits="1" DataFormatString="{0:#,###.0}" ItemStyle-HorizontalAlign="Right" ></telerik:GridNumericColumn>
<telerik:GridNumericColumn HeaderText ="UnitPrice" DataField ="unitprce" AllowRounding="true" DecimalDigits="5" DataFormatString="{0:#,###.00000}" ItemStyle-HorizontalAlign="Right" ></telerik:GridNumericColumn>