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Example E20054
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Grid View for ASP.NET MVC - How to add a column if the AutoGenerateColumns property is set to true

When the AutoGenerateColumns property is set to true, handle the GridViewSettings.DataBound event to add a column to the Grid View. Before adding the column, check whether a column already exists to avoid duplicate columns.

Razor
settings.DataBound = (sender, e) => {  
    MVCxGridView grid = sender as MVCxGridView;  
    if (grid.Columns.IndexOf(grid.Columns["CommandColumn"]) != -1)  
        return;  
    GridViewCommandColumn col = new GridViewCommandColumn();  
    col.Name = "CommandColumn";  
    col.ShowSelectCheckbox = true;  
    col.VisibleIndex = 0;  
    grid.Columns.Add(col);  
};

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Example Code

AddColumnAtRunTime/Views/Shared/GridPartial.cshtml 
Razor
@model System.Data.DataTable

@Html.DevExpress().GridView(settings => {
    settings.Name = "grid";
    settings.CallbackRouteValues = new { Controller = "Home", Action = "GridAction" };
    settings.KeyFieldName = "CustomerID";
    settings.DataBound = (sender, e) => {
        MVCxGridView grid = sender as MVCxGridView;
        if (grid.Columns.IndexOf(grid.Columns["CommandColumn"]) != -1)
            return;
        GridViewCommandColumn col = new GridViewCommandColumn();
        col.Name = "CommandColumn";
        col.ShowSelectCheckbox = true;
        col.VisibleIndex = 0;
        grid.Columns.Add(col);
    };
}).Bind(Model).GetHtml()

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