ASP.NET

Retrieve Rows Selected Using CheckBox in an Grid View:

Design Page(aspx.Design):

  <asp:GridView runat="server" ID="gvdetails1" AllowPaging="true" AllowSorting="true" AutoGenerateColumns="false" OnPageIndexChanging="gvdetails1_PageIndexChanging"PageSize="3"

*DataKeyNames="Id">

<RowStyle BackColor="#EFF3FB" />

<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />

<PagerStyle BackColor="#2461BF"ForeColor="White"HorizontalAlign="Center" />

<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />

<AlternatingRowStyle BackColor="White" />

<Columns>

<asp:TemplateField HeaderText="Select">

<ItemTemplate>

 <asp:CheckBox ID="chkSel" runat="server"/>

</ItemTemplate>

</asp:TemplateField>

<asp:BoundField DataField="Id" HeaderText="User ID" Visible="false" > </asp:BoundField>

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

</Columns>

</asp:GridView>   

<asp:Button ID="btnRetrieveCheck" runat="server"

  Text="Retrieve Checked Items" onclick="btnRetrieveCheck_Click" />

aspx.Cs:

Under Button Click:

foreach (GridViewRow row in gvdetails1.Rows)

        {

            CheckBox cb = (CheckBox)row.FindControl("chkSel");

            if (cb != null && cb.Checked)

            {

                Response.Write("Employee Id: " +

                    gvdetails1.DataKeys[row.RowIndex].Value

                    + " Name: " + row.Cells[2].Text + "<br/>");

            }

        }