Insert and AddAt methods unexpected behavior

[EmpowerIT]

What is the expected behavior of the RadGrid.MasterTableView.Columns.Insert and RadGrid.MasterTableView.Columns.AddAt methods?

It seems to be replacing the column at the index position I specify, instead of inserting the column and shifting everything else in the collection across.

GridColumn employeeRateCol = RadGridSummary.MasterTableView.Columns.FindByUniqueName("EmployeeRate");
GridDropDownColumn rateType = new GridDropDownColumn();
int index = RadGridSummary.MasterTableView.Columns.IndexOf(employeeRateCol);
RadGridSummary.MasterTableView.Columns.Insert(index, rateType);

If i use the Add method, everything works as expected, but I don't want this dynmaically created column to appear as the last column

I am using the .NET 4 version of the Q1 2010 release

[Mira]

Hello,

Please note that when changing the grid structure dynamically, you must ensure that the entire grid is modified on Page_Init and the EnableColumnViewState property is set to False.
For additional information, please take a look at the Changing the grid structure dynamically on postback help topic.

I have made a sample project for you demonstrating that the Insert and AddAt methods work as expected when the above mentioned requirements are met. You can find it attached to this message.

I hope this helps.

Greetings,
Mira
the Telerik team