如何从复选框单击位于GridView行内的TextChanged事件背后的textBox代码？

Question

I have a Gridview in which each row has a Checkbox and TextBox . I am doing some work on textchange event as below

protected void txtRemarks_TextChanged(object sender, EventArgs e)
{
    GridViewRow grow = ((TextBox)sender).Parent.Parent as GridViewRow;

    GenerateCheckedDataAndStore(grow); // Basically populates a datatable from Viewstate


}

This I need to do on click event of checkbox also. I have tried using __doPostBack() function but doesnot work.

How can I successfully fire code behind textbox change event from clicking on adjacent checkbox ? Please help.

<asp:GridView id="grdView" runat="server">
<Columns>
 <asp:TemplateField ItemStyle-Width="2%">
     <HeaderTemplate>
       <asp:CheckBox runat="server" ID="chkAll" Style="text-align: left !important;" />
     </HeaderTemplate>
     <ItemTemplate>
       <%-- <asp:CheckBox runat="server" ID="chkSelect" AutoPostBack="true" OnCheckedChanged="chkSelect_CheckedChanged" />--%>

       <asp:CheckBox runat="server" ID="chkSelect"  />
       <asp:HiddenField ID="hdnNo" runat="server" Value="<%#Bind('InvoiceNo')%>" />
     </ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Remarks" ItemStyle-Width="12%">
     <ItemTemplate>
       <asp:TextBox ID="txtRemarks" runat="server" OnTextChanged="txtRemarks_TextChanged" Text="<%#Bind('Remarks')%>" TextMode="MultiLine"  AutoPostBack="true" ></asp:TextBox>
          <asp:HiddenField ID="hdnRemarks" runat="server" />
       </ItemTemplate>
</asp:TemplateField>
.
.
.
</Columns>
</GridView>

Please note
My aim is to call GenerateCheckedDataAndStore(grow); on checkbox click event.

Edit

As suggested in by @Jared in comments below i am calling textchange from checkchanged of checkbox. But strangely the gridview row being captured from checkbpox doesnot udate but remains same as whichever row was selected first.

 protected void txtRemarks_TextChanged(object sender, EventArgs e)
 {
        GridViewRow grow= null;
        if(sender is TextBox)
            grow = ((TextBox)sender).Parent.Parent as GridViewRow;
        else if(sender is CheckBox)
            grow = ((CheckBox)sender).Parent.Parent as GridViewRow;
        GenerateCheckedDataAndStore(grow);

  }

Answer 1

Just add to the checkbox following code:

AutoPostBack="true" OnCheckedChanged="txtRemarks_TextChanged"

Update:

You will need to cast sender to Control instead of TextBox to your action to work.