Change GridView CommandField Header Text in ASP.Net

Hi George616,

Refer below sample code.

HTML

<asp:GridView ID="GridView1" runat="server" OnRowDataBound="OnRowDataBound"
    class="table table-bordered table-condensed table-hover" Width="100%">
    <EmptyDataTemplate>
        <div style="text-align: center; font-weight: bolder; font-size: medium;">
            <asp:Label ID="labelTemp" runat="server" Text="No Activity Recorded"></asp:Label>
        </div>
    </EmptyDataTemplate>
    <Columns>
        <asp:TemplateField HeaderText="Image">
            <ItemTemplate>
                <asp:Image ID="Image1" runat="server" Width="30px" Height="30px" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:CommandField ButtonType="Button" ShowDeleteButton="true" HeaderText="Action" />
    </Columns>
</asp:GridView>

Namespaces

C#

using System.Configuration;
using System.Data;
using System.Data.SqlClient;

VB.Net

Imports System.Configuration
Imports System.Data
Imports System.Data.SqlClient

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
        using (SqlConnection conn = new SqlConnection(constr))
        {
            using (SqlDataAdapter sda = new SqlDataAdapter("SELECT Email,UserRole,Name,CreateDate,Image FROM Users", conn))
            {
                DataTable dt = new DataTable();
                sda.Fill(dt);
                GridView1.DataSource = dt;
                GridView1.DataBind();
            }
        }
    }
}

protected void OnRowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        DataRowView dr = (DataRowView)e.Row.DataItem;

        if (dr["UserRole"].ToString().ToLower() == "a")
        {
            (e.Row.Cells[1].Controls[0] as Button).Visible = true;
        }
        else if (dr["UserRole"].ToString().ToLower() == "u")
        {
            (e.Row.Cells[1].Controls[0] as Button).Visible = false;
        }

        if (dr.Row.Table.Columns.Contains("image"))
        {
            if (dr["image"] != DBNull.Value)
            {
                string imageUrl = "data:image/jpg;base64," + Convert.ToBase64String((byte[])dr["image"]);
                (e.Row.FindControl("Image1") as Image).ImageUrl = imageUrl;
            }
        }
    }

    GridViewRow row = e.Row;
    List<TableCell> cells = new List<TableCell>();
    foreach (DataControlField column in GridView1.Columns)
    {
        TableCell cell = row.Cells[0];
        row.Cells.Remove(cell);
        cells.Add(cell);
    }
    row.Cells.AddRange(cells.ToArray());
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Dim constr As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
        Using conn As SqlConnection = New SqlConnection(constr)
            Using sda As SqlDataAdapter = New SqlDataAdapter("SELECT Email,UserRole,Name,CreateDate,Image FROM Users", conn)
                Dim dt As DataTable = New DataTable()
                sda.Fill(dt)
                GridView1.DataSource = dt
                GridView1.DataBind()
            End Using
        End Using
    End If
End Sub

Protected Sub OnRowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
    If e.Row.RowType = DataControlRowType.DataRow Then
        Dim dr As DataRowView = CType(e.Row.DataItem, DataRowView)
        If dr("UserRole").ToString().ToLower() = "a" Then
            TryCast(e.Row.Cells(1).Controls(0), Button).Visible = True
        ElseIf dr("UserRole").ToString().ToLower() = "u" Then
            TryCast(e.Row.Cells(1).Controls(0), Button).Visible = False
        End If
        If dr.Row.Table.Columns.Contains("image") Then

            If dr("image") <> DBNull.Value Then
                Dim imageUrl As String = "data:image/jpg;base64," & Convert.ToBase64String(CType(dr("image"), Byte()))
                TryCast(e.Row.FindControl("Image1"), Image).ImageUrl = imageUrl
            End If
        End If
    End If

    Dim row As GridViewRow = e.Row
    Dim cells As List(Of TableCell) = New List(Of TableCell)()
    For Each column As DataControlField In GridView1.Columns
        Dim cell As TableCell = row.Cells(0)
        row.Cells.Remove(cell)
        cells.Add(cell)
    Next
    row.Cells.AddRange(cells.ToArray())
End Sub

Screenshot