Gridview row data based on checkbox selection.

Follow below code

"GridView1" runat="server" HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor="White"
AutoGenerateColumns="false">
"chkRow" runat="server" />
"Name" HeaderText="Name" ItemStyle-Width="150" />
"btnGetSelected" runat="server" Text="Get selected records" OnClick="GetSelectedRecord"/>
protected void GetSelectedRecords(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt.Columns.AddRange(new DataColumn[1] { new DataColumn("Name") });
foreach (GridViewRow row in GridView1.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
CheckBox chkRow = (row.Cells[0].FindControl("chkRow") as CheckBox);
if (chkRow.Checked)
{
string name = row.Cells[1].Text;
dt.Rows.Add(name);
}
}
}
}

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