WeForm texbox control. action related to ontextchanged event not happening

Question

Web.UI.Controls.TextBox

in my aspx page i have used-

<asp:TextBox ID="TextBox1" runat="server"  OnTextChanged="tmaintextchanged"  ></asp:TextBox>

in my code behind :

<asp:Label ID="show" runat="server" ></asp:Label >

protected void tmaintextchanged(object sender, EventArgs e)
        {
            show.Text = "working";
        }

when I am executing this ,Why is the text of label "show" not changing.Kindly help. Am i missing any configuration to the Text box.

Are you using any update panels? Did you put a breakpoint in the tmaintextchanged method to make sure it's being called? — Blachshma, Feb 18 '13 at 11:00

score 0 · Answer 1 · edited May 23 '17 at 12:12

0

You need to set autopostback on TextBox control:

<asp:TextBox ID="TextBox1" runat="server" AutoPostBack="true" OnTextChanged="tmaintextchanged"  ></asp:TextBox>

Update

see this post:

How do I make a Textbox Postback on KeyUp?

edited May 23 '17 at 12:12

Community

1
1

answered Feb 18 '13 at 11:25

RedDevil79

445
5
13

thank you it works now , but the function is called only after the textbox control loses focus and not on text change. Can you please help with this ? – user2074474 Feb 20 '13 at 02:02
You will have to use a different approach – RedDevil79 Feb 20 '13 at 13:06

WeForm texbox control. action related to ontextchanged event not happening

1 Answers1