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POHow to stop postback in image button
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2013-10-24T02:13:17.310
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2014-11-06T09:47:39.360
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2013-10-24T03:01:44.510
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Body
<p>How to avoid the post back in Image button.I tried this way but on clicking the image button my text box is not showing.</p> <p>My issue is ->image button is doing a postback on each click .For avoiding that i tried to use java script as below.On click of button i want to show a <strong>textbox</strong> which have lot of functionalities in TextBox1_TextChanged event.But it is not working...</p> <pre><code><asp:ImageButton ID="ImageButton1" runat="server" OnClientClick="return ValidNum();" onClick="ImageButton1_Click" Height="52px" ImageUrl="search1.png" style="margin-right: 0px" Width="126px" /> <script> function ValidNum() { return false; } </script> </code></pre> <p>And in code behind i have</p> <pre><code> Protected Sub ImageButton1_Click(sender As Object, e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click TextBox1.Visible = True End Sub </code></pre> <p><strong>EDIT</strong> Now i changed my code as below but-BC30456: 'return' is not a member of 'ASP.about_aspx' ERROR is showing</p> <pre><code> <asp:ImageButton ID="ImageButton1" runat="server" OnClientClick="return ValidNum();" onClick="return showBox();" Height="52px" ImageUrl="~/search1.png" style="margin-right: 0px" Width="126px" /> <script> function showBox() { var theControl = document.getElementById("<%=Textbox1.ClientID %>"); theControl.style.display = ""; } </code></pre> <p></p> <pre><code><script> function ValidNum() { return false; } </script> </code></pre> <p>Thank You</p>
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<asp.net><vb.net>
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How to stop postback in image button
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