CODEWITHSUNDEEP
c#asp.net
duck
duck

Reputation: 857

TextChanged event not being triggered with UpdatePanel

I have 2 textboxes: txtSKU1 and txtDescription1. I want the user put text into txtSKU1, then hit tab and have the txtSKU1_TextChanged event fire, which will auto populate txtDescription1. I'm trying to avoid using a postback. From my understanding, the TextChanged event fires after it loses focus, so I assumed the UpdatePanel I used below would work but nothing happens until I do a trigger a postback. Any ideas?

<td><asp:TextBox ID="txtSKU1" runat="server" width="100%" BorderColor="#dddddd" OnTextChanged="txtSKU1_TextChanged"></asp:TextBox></td>
    <td>
            <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
                <ContentTemplate>
                    <asp:TextBox ID="txtDescription1" runat="server" width="100%" BorderColor="#dddddd"></asp:TextBox>
                </ContentTemplate>
                <Triggers>
                    <asp:AsyncPostBackTrigger ControlID="txtSKU1" EventName="TextChanged" />
                </Triggers>
            </asp:UpdatePanel>
    </td>

Upvotes: 0

Views: 8287

Answers (1)

Reg Edit
Reg Edit

Reputation: 6916

The problem isn't the UpdatePanel, it's just that the TextChanged event is one that only fires during a postback that's been triggered by something else.

To get TextChanged to trigger the postback, set its AutPostBack attribute:

OnTextChanged="txtSKU1_TextChanged" AutoPostBack="true"

Upvotes: 2

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