Validator causes improper behavior for double click check

Question

I have following script to prevent a button from submitting twice by double clicking. It works fine.

But the scenario gets clumsy when I added a Required Field validator. If I try to submit with a blank value in textbox, the validator fires. But when I entered value in textbox and try to submit again it does not do a postback.

I understand the reason, in the first button click itself, the variable isActionInProgress is set as 'Yes' irrespective of the validation error.

What is the best way to overcome this challenge?

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<html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jquery/jquery-1.8.1.js"></script> <script type="text/javascript"> $(document).ready(function () { var isActionInProgress = 'No'; $('.myButton').click(function (e) { if (isActionInProgress == 'No') { isActionInProgress = 'Yes'; } else { e.preventDefault(); //alert('STOP'); } }); }); </script> </head> <body> <form id="form1" runat="server"> <div> <asp:TextBox ID="txtEmpName" runat="server"></asp:TextBox> <asp:Button ID="Button1" CssClass="myButton" runat="server" Text="Submit" ValidationGroup="ButtonClick" OnClick="Button1_Click" /> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="txtEmpName" runat="server" ErrorMessage="RequiredFieldValidator" ValidationGroup="ButtonClick" Text="*"></asp:RequiredFieldValidator> </div> </form> </body>

REFERENCES

Boriss Pavlovs · Accepted Answer · 2012-12-11 17:44:31Z

2

I think somthin like this:

 $('.myButton').click(function (e) { if(Page_IsValid){ if (isActionInProgress == 'No') { isActionInProgress = 'Yes'; } else { e.preventDefault(); //alert('STOP'); } } });

answered Dec 11, 2012 at 17:44

Boriss Pavlovs

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1 Comment

Boriss Pavlovs Over a year ago

If validator validate correct Page_IsValid will be true. Your click doesn't fire after validation because your script works in any case and prevent second click. Now this occures only if validation was correct

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