How to check box value dynamically using findcontrol c# asp.

Question

Hi All,good Morning,

 

below is my html code 

.

<table>

<tr>

<td><asp:CheckBox ID="CheckBox1" runat="server" /></td>

<td><asp:CheckBox ID="CheckBox2" runat="server" /></td>

<td><asp:CheckBox ID="CheckBox3" runat="server" /></td>

<td><asp:CheckBox ID="CheckBox4" runat="server" /></td>

<td><asp:CheckBox ID="CheckBox5" runat="server" /></td>

</tr>

</table>

 

Below code i am trting to get checkbox checked status dynamically but i am getting object refernce not in set Pls provide related code

 

for (int i = 0; i <= 4; i++)

{

CheckBox chk = (CheckBox)this.FindControl("CheckBox"+i);

if (chk.Checked)

{

}

else

{

}

}

 Thanks 

VeKaT G