asp.net GridView Kolon Gizleme

aspsnippets de gezerken kod yazımını beğendiğim bir yazıyı sizlere paylaşmak isterim.

https://www.aspsnippets.com/Articles/Dynamically-Show-Hide-TemplateField-column-in-ASPNet-GridView-using-C-and-VBNet.aspx

sitesinden alntıdır.

HTML Markup

<asp:CheckBox ID="chkCountry" Text="Show Hide Country" runat="server" OnCheckedChanged="OnCheckedChanged"
    AutoPostBack="true" Checked="true" />
<hr />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
    <Columns>
        <asp:BoundField DataField="Id" HeaderText="Id" ItemStyle-Width="30" />
        <asp:BoundField DataField="Name" HeaderText="Name" ItemStyle-Width="150" />
        <asp:TemplateField HeaderText="Country" ItemStyle-Width="150">
            <ItemTemplate>
                <asp:Label Text='<%# Eval("Country") %>' runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

C#

protected void Page_Load(object sender, EventArgs e)

{

    if (!this.IsPostBack)

    {

        DataTable dt = new DataTable();

        dt.Columns.AddRange(new DataColumn[3] { new DataColumn("Id"), new DataColumn("Name"), new DataColumn("Country") });

        dt.Rows.Add(1, "John Hammond", "United States");

        dt.Rows.Add(2, "Mudassar Khan", "India");

        dt.Rows.Add(3, "Suzanne Mathews", "France");

        dt.Rows.Add(4, "Robert Schidner", "Russia");

        GridView1.DataSource = dt;

        GridView1.DataBind();

    }

}

protected void OnCheckedChanged(object sender, EventArgs e)

{

    GridView1.Columns[2].Visible = (sender as CheckBox).Checked;

}