How to avoid postback with javascript

Question

Content of my page is:

 <form id="form1" runat="server"> <div> <asp:TextBox ID="txtAccountNumber" runat="server"></asp:TextBox> <asp:Button ID="btnTransfer" runat="server" Text="Transfer" OnClientClick="ValidateTheAccountNumber()" /> </div> </form> 

I wrote this script:

function ValidateTheAccountNumber() { return false; }

I think, with this js function, the page can't postback.But it does.Please say me what is the wrong point that I do?

Thanks!

Answer 1

您还必须返回函数调用的结果

... OnClientClick="return ValidateTheAccountNumber()" />