How to change datatable column name or gridview header name dynamically?

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C#

ASP.NET

I m using Gridview inside of User control..so I have bind datatable values.

My Datatable column name is "ProjectGroupName" but I want to show my column header is "Project Group Name"...

plz suggest any idea..thanks

What I have tried:

objDatatable.Columns["ProjectGroupName"].ColumnName = "Project Group Name;

user control form:

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="GridViewUserControl.ascx.cs" Inherits="DailyUpdateWebServer.Control.GridViewUserControl" %>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel runat="server">
    <ContentTemplate>
        <asp:GridView runat="server" ID="grdUserControl" OnSorting="grdUserControl_Sorting" AllowSorting="true" AutoGenerateColumns="true" CssClass="table table-striped table-bordered table-hover">
        </asp:GridView>
    </ContentTemplate>
</asp:UpdatePanel>

public partial class GridViewUserControl : System.Web.UI.UserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {
       
        }
       
        public DataTable DataSource
        {
            set
            {
              
                grdUserControl.DataSource = value;
                grdUserControl.DataBind();                
            }
        }
}


Class:
public class TaskView
    {
      
        public string ProjectGroupName { get; set; }
        public string ProjectName { get; set; }
       
}


aspx.cs:
protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                TaskView obj = new TaskView();
                obj.GetTask();

                GridViewUserControl.DataSource = obj.GetTask(); // passing datatable
                GridViewUserControl.DataBind();
            }
        }