How to disable a submit button?

Question

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Using the following codes I am unable to disable the 'Submit' btn after a click.

XML

<head runat="server">
    <title>Untitled Page</title>
    <script type = "text/javascript">
        function DisableButton() {
            document.getElementById("<%=Button4.ClientID %>").disabled = true;
        }
        window.onbeforeunload = DisableButton;
</script>

CSS

<asp:Button ID="Button4" runat="server"  ToolTip="Please note down your member ID for future reference"
  OnClick="Button4_Click"
style="z-index: 1; left: 185px; top: 2840px; position: absolute;   height:30px; width:80px; font-size:large " ForeColor="Green" Text="Submit" />

Posted 12-Nov-14 18:58pm

S.Rajendran from Coimbatore

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samit kaneriya · Answer 1 · 2014-11-12T20:39:00

Use this javascript code

XML

<script type="text/javascript" language="JavaScript">
        function DisableButton() {
            document.getElementById("<%=Button4.ClientID %>").disabled = true;
        }
</script>

After this Add [OnClientClick] attribute to control

<asp:Button ID="Button4" runat="server"  ToolTip="Please note down your member ID for future reference"
  OnClick="Button4_Click" 
  style="z-index: 1; left: 185px; top: 2840px; position: absolute;   height:30px; width:80px; font-size:large " ForeColor="Green" 
  Text="Submit" OnClientClick="DisableButton();"/>

Mathew Soji · Answer 2 · 2014-11-12T22:25:00

Assuming you need Button4_Click() handler executed once and then disable the submit button,try removing the java script code and try as below .

Add code to disable at the end of submit button handler;

C#

protected void Button4_Click(object sender, EventArgs e)
{
    //you submit handler code
    //.....
    //....

    Button4.Enabled = false; <pre> //disable after first execution
   
}

Kan07 · Answer 3 · 2014-11-12T22:46:00

Solution 4

document.getElementById('<%= this.button.ClientID %>').disabled = false;

Posted 12-Nov-14 22:46pm

Kan07

Mehul v Patel · Answer 4 · 2014-11-13T19:26:00

Your code have one minor error.Refer below code ......

XML

<head runat="server">
    <title>Untitled Page</title>
    <script type = "text/javascript">
        function DisableButton() {
            document.getElementById("Button4").disabled = true;
        }
        window.onbeforeunload = DisableButton;
</script>

<asp:Button ID="Button4" runat="server"  ToolTip="Please note down your member ID for future reference"
  OnClick="Button4_Click"
style="z-index: 1; left: 185px; top: 2840px; position: absolute;   height:30px; width:80px; font-size:large " ForeColor="Green" Text="Submit" />

How to disable a submit button?

4 solutions

Solution 1

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Solution 4

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