First Create a website in asp.net using c# & design the page
<asp:GridView
ID="GridView1"
runat="server"
DataSourceID="SqlDataSource1"
Style="font-family:
Arial;|
font-size:
10pt"
AutoGenerateColumns="false"
DataKeyNames="sr_no"
Width="222px">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox
ID="chkdelete"
runat="server"
/>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField
DataField="sr_no"
HeaderText="Sr.No"
/>
<asp:BoundField
DataField="disease_name"
HeaderText="Disease"
/>
</Columns>
</asp:GridView>
<asp:Button
ID="Button1"
runat="server"
OnClick="Button1_Click"
Text="Delete"
/>
<asp:SqlDataSource
ID="SqlDataSource1"
runat="server"
ConnectionString="<%$
ConnectionStrings:shivkamal_webConnectionString
%>"
SelectCommand="SELECT *
FROM [disease_wise_tbl]" DeleteCommand="delete
from disease_wise_tbl where sr_no=@sr_no">
<DeleteParameters>
<asp:Parameter
Name="sr_no"
Type="Int32"
/>
</DeleteParameters>
</asp:SqlDataSource>
after succefully
design the page write the code on button click event foreach (GridViewRow
gvrow in
GridView1.Rows) { CheckBox chkdelete = (CheckBox)gvrow.FindControl("chkdelete");
if (chkdelete.Checked)
{ //Getting UserId of particular row using datakey value
int usrid =
Convert.ToInt32(GridView1.DataKeys[gvrow.RowIndex].Value);
SqlDataSource1.DeleteParameters["sr_no"].DefaultValue
= usrid.ToString();
SqlDataSource1.Delete();
}
}