Get GridView Selected Row on Button Click Event

Get GridView Selected Row on Button Click Event

Step 1: Design web form .aspx Page

<div>

        <asp:GridView ID="gr" runat="server" DataKeyNames="Name" AutoGenerateColumns="false"

            AlternatingRowStyle-BackColor="WhiteSmoke" Width="40%" OnRowDataBound="gr_RowDataBound"

            OnSelectedIndexChanged="GridView1_SelectedIndexChanged">

            <HeaderStyle BackColor="#3366ff" Font-Bold="true" ForeColor="White" />

            <Columns>

                <asp:BoundField DataField="Name" HeaderText="Name" />

                <asp:BoundField DataField="City" HeaderText="City" />

                <asp:BoundField DataField="Phone" HeaderText="Phone" />

                <asp:CommandField SelectText="Select" ShowSelectButton="true" Visible="false" />

            </Columns>

        </asp:GridView>

        <asp:Button ID="BTnFetchRow" runat="server" Text="Show Value" OnClick="BTnFetchRow_Click" />

        <asp:HiddenField ID="hd" runat="server" />

    </div>

Step 2:Logic on .Cs page

  public void bind_gr()

    {

        DataTable dt = new DataTable();

        dt.Columns.Add("Name");

        dt.Columns.Add("City");

        dt.Columns.Add("Phone");

        dt.Columns.Add("percentage");

        dt.Rows.Add("Kandy", "Delhi", "8802***2564", "54");

        dt.Rows.Add("Sam", "Hr", "545502*2544", "32");

        dt.Rows.Add("Izhar", "Up", "95802*2452", "90");

        dt.Rows.Add("Vineet", "Delhi", "88022564***", "31");

        gr.DataSource = dt;

        gr.DataBind();

    }

    protected void gr_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            e.Row.Attributes["onclick"] = Page.ClientScript.GetPostBackClientHyperlink(this.gr, "Select$" + e.Row.RowIndex);

            e.Row.ToolTip = "Click to select this row.";

        }

    }

    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)

    {

        string Name = gr.SelectedDataKey.Value.ToString();

        string City = gr.SelectedRow.Cells[1].Text;

        hd.Value = Name;

        foreach (GridViewRow row in gr.Rows)

        {

            if (row.RowIndex == gr.SelectedIndex)

            {

                row.BackColor = ColorTranslator.FromHtml("Yellow");

                row.ToolTip = string.Empty;

            }

            else

            {

                row.BackColor = ColorTranslator.FromHtml("#FFFFFF");

                row.ToolTip = "Click to select this row.";

            }

        }

    }

    protected void BTnFetchRow_Click(object sender, EventArgs e)

    {

        Response.Write(hd.Value);

    }

 It will look like :-