I need to disable the save button on my form using javascript, if the validation on the page fails. If they don't then it must be enabled used the following code.

Code:

<script language="javascript" type="text/javascript">
  function ValidatePage() 
    {
        if (Page_ClientValidate == true) 
        {

        }

        else 
        {            
            document.getElementById(buttonID).disabled = true;
            return false;
        }
}
</script>

<asp:Button ID="btnSave" CssClass="button" runat="server" Text="Save" 
  Width="61px" Height="29px" OnClientClick="ValidatePage();" onclick="btnSave_Click" />

I need to disable the save button on my form using javascript, if the validation on the page fails. If they don't then it must be enabled used the following code.

Code:

<script language="javascript" type="text/javascript">
  function ValidatePage() 
    {
        if (Page_ClientValidate == true) 
        {

        }

        else 
        {            
            document.getElementById(buttonID).disabled = true;
            return false;
        }
}
</script>

<asp:Button ID="btnSave" CssClass="button" runat="server" Text="Save" 
  Width="61px" Height="29px" OnClientClick="ValidatePage();" onclick="btnSave_Click" />

• javascript
• asp
• regex

2 Answers 2

You have to use ClientID of button, also return true when if statement is true

document.getElementById('<%= btnSave.ClientID %>').disabled = true;

You have using Page_ClientValidate as variable but it is function.

Change

if (Page_ClientValidate == true) 

To

if(Page_ClientValidate(""))

You are not using the returned value of ValidatingPage() in OnClientClick and as a result you will get postback anyway

Change

OnClientClick="ValidatePage();"

To

OnClientClick="return ValidatePage();"

You can use OnClientClick="return ValidatePage();"

Hope This help.