How to show ID in message box?

Question

I am currently developing a website. I have an a code in my external js file

function DeleteConfirm(rfqcodeLB) {
    var confirm_value = document.createElement("INPUT");
    confirm_value.type = "hidden";
    confirm_value.name = "confirm_value";
    if (confirm("Are you sure you want to delete" + rfqcodeLB +" ?")) {
        confirm_value.value = "Yes";
    } else {
        confirm_value.value = "No";
    }
    document.forms[0].appendChild(confirm_value);
}

What I want to do is get the id of the selected row in the gridview. What i did was transfer the selected code into string which is rfqcodeLB. And then put the attribute to the button. But it shows null.

Can someone please help me? Thanks.

<asp:ImageButton ImageUrl="../Pictures/Icons/deleteblack.png" runat="server" OnClick="Unnamed_Click" ID="deleteBT" OnClientClick="return DeleteConfirm(ContentPlaceHolder1_rfqcodeLB);"/>

Answer 1

将id作为函数参数传递，而不是ContentPlaceHolder1_rfqcodeLB，请使用this.id。

Answer 2

You need to send the RowIndex to the JavaScript function. Not this.id , that will only get you the ID of the ImageButton.

<asp:ImageButton OnClientClick='<%# "return DeleteConfirm(" + Container.DataItemIndex + ");" %>' ImageUrl="../Pictures/Icons/deleteblack.png" runat="server" OnClick="Unnamed_Click" ID="deleteBT"/>

Or if you want a database value

OnClientClick='<%# "return DeleteConfirm(&#39;" + Eval("yourID") + "&#39;);" %>'