Add Columns Dynamically at specific index to existing RadGrid

Question

I have to add custom column runtime on specific location to exiting telerik grid.

string[] customColumns = ds.Tables[2].Rows[0]["CustomColumns"].ToString().Split(',');
int startIndex = 7;
for (int i = 0; i < customColumns.Length; i++)
{
    GridBoundColumn NewColumn = new GridBoundColumn();
    tableGrid.MasterTableView.Columns.AddAt(startIndex, NewColumn);
    NewColumn.HeaderText = customColumns[i].Replace("[", "").Replace("]", "");
    NewColumn.DataField = customColumns[i].Replace("[", "").Replace("]", "");
    NewColumn.Visible = true;
    NewColumn.FilterControlWidth = Unit.Percentage(70);
    NewColumn.HeaderStyle.CssClass = "setHeader";
    NewColumn.HeaderStyle.Width = 130;
    NewColumn.AllowFiltering = true;
    NewColumn.OrderIndex = startIndex;
    startIndex++;
}

Using this block of code column added successfully at given location but when I used existing grid filter functionality then position of column is changed and even I can't see value in column.

Attila Antal Attila Antal · Accepted Answer · 2019-08-11T12:33:33

You will need to define an OrderIndex for the columns, and when adding a new one to the grid, you will know which OrderIndex to use. Check out the Reordering columns programmatically article for your reference.

Add Columns Dynamically at specific index to existing RadGrid

1 Answers