Repeater’s Item command event is not firing on linkbutton click

I am having problem with my repeater’s OnItemCommand event.
When I click the Link Button, its not firing.
Am I missing any environment variable

ASPX code

<table>
    <!-- repResearchers begin, 0=display name, 1=url -->
    <asp:Repeater ID="repExtResearchers" Runat="server" OnItemCommand="deleteResearcher">
        <ItemTemplate>
            <tr>
                <td>
                    <a href="<%# ((System.String[])Container.DataItem)[1] %>" rel="nofollow noreferrer noopener">
                    <%# ((System.String[])Container.DataItem)[0] %></a>
                </td>
                <td>
                    <asp:LinkButton ID="lbDelete" runat="server" CommandName="del" 
                    CommandArgument = "<%# ((System.String[])Container.DataItem)[1]%>"
                    OnClientClick="if (!confirm('Are you sure do you want to delelte it?')) return false;">Delete</asp:LinkButton>
                </td>
            </tr>
        </ItemTemplate>
    </asp:Repeater>
</table>

CS

protected void deleteResearcher(object sender, RepeaterCommandEventArgs e)
{
    string a;
    lblError.Text = e.CommandArgument.ToString();
    lblError.Visible = true;
}

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

Make sure you dont rebind the repeater at every postback.

If (Page.IsPostBack)
    return;

repExtResearchers.DataSource = ...
repExtResearchers.DataBind();

Hope that helps.

Method 2

I’m sure – as this is an EXTREMELY old question – that this has been answered already, but for people who may be running into what I was running into…

If you’re using any of the Ajax Controls, they all require a validation group. I had a really long page that I was trying to shorten by doing this, so I wasn’t noticing that the ajax controls from the Ajax Control Toolkit were throwing errors and not validating. I set the LinkButton’s validation group to something that was nowhere anywhere and it started firing.

Hopefully, that helps someone out.

Method 3

It won’t fix your ptoblem but change

OnClientClick="if (!confirm('Are you sure do you want to delelte it?')) return false;"

to

OnClientClick="return confirm('Are you sure do you want to delelte it?')"

Your code is using a double negative to confirm a positive.

Method 4

I had this issue using OnCommand in a LinkButton and I had an empty href="". When I removed the extra attribute, it posted back.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0