get element value on checkbox checked in Gridview?

Question

I have a GridView with ItemTemplate( Checkbox and TextBox )

<asp:GridView ID="gvNonTimeCard" runat="server">
    <asp:TemplateField HeaderText="Delete?">
       <ItemTemplate>
           <asp:CheckBox ID="chkDelete" runat="server" onclick="return chkDelete_OnClick(this);"></asp:CheckBox>
       </ItemTemplate> 
    </asp:TemplateField>
    <asp:TemplateField HeaderText="Date" >
        <ItemTemplate>
            <asp:TextBox runat="server" ID="txtDate" CssClass="Width_2" format="Date" Text='<%# DataBinder.Eval(Container,  "DataItem.DateWorked") %>' Description="Date on row ">                                        
            </asp:TextBox>
        </ItemTemplate>
    </asp:TemplateField>
</asp:GridView>

I have written a JavaScript function to find a texDate value on click checkbox. But i dont' see get any value its returning control id "gvNonTimeCard_ctl03_txtDate"?

function chkDelete_OnClick(objCheckbox) {
 if (objCheckbox != null) {
     console.log("objCheckBox null");
     var val = document.getElementById(objCheckbox.id.replace("chkDelete", "txtDate")).id;       
 }

Answer 1

在您的代码中替换此行

var val = document.getElementById(objCheckbox.id.replace("chkDelete", "txtDate")).value;