ASP.NET blog by Subgurim

Some things about ASP.NET, C#, ASP.NET AJAX, javascript...

November 2007 - Posts

ClickOnce Button

Working in one of my applications, I needed a button that disables when it were clicked.

 So I have been working on it and here is the final code.

 

There are only two Assumptions:

  • The Button must be of type button, no of type submit.
  • The javascript should control if we are working with validator.

 

.aspx

         <asp:TextBox ID="TextBox1" runat="server" ValidationGroup="SubgurimTest"></asp:TextBox>
       
        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
            ErrorMessage="*" ControlToValidate="TextBox1" ValidationGroup="SubgurimTest">
        </asp:RequiredFieldValidator>
       
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="OnceClickMe" ValidationGroup="SubgurimTest"
            UseSubmitBehavior="false" OnClientClick="clickOnce(this, 'Cargando...')" />
           
        <br />
       
        <asp:Label ID="Label1" runat="server" Text=""></asp:Label>

 

.aspx.cs

     protected void Button1_Click(object sender, EventArgs e)
    {
        System.Threading.Thread.Sleep(1000);
        Label1.Text = DateTime.Now.ToString();
    }

 

.js
         function clickOnce(btn, msg)
        {
            // Test if we are doing a validation
            if (typeof(Page_ClientValidate) == 'function')
            {
                // if we are doing a validation, return if it's false
                if (Page_ClientValidate() == false) { return false; }
            }
           
            // Ensure that the button is not of type "submit"
            if (btn.getAttribute('type') == 'button')
            {
                // The msg attibute is absolutely optional
                // msg will be the text of the button while it's disabled
                if (!msg || (msg='undefined')) { msg = 'Loading...'; }
               
                btn.value = msg;

                // The magic :D
                btn.disabled = true;
            }
           
            return true;
        }


 I wish it can help you

My Netgets on Codeplex

If a Widget is a Web Gadget, a Netget is a dotNET Gadget :P

I'm a Netget fan, I'm always thinking on new user controls, libraries or frameworks, but I have not time enough to work on them as I wanted...

Therefore I've decided to make some of my favorite Netgets OpenSource on Codeplex

I'm talking about:
- FileUpload AJAX.
- Chat.
- Sitemap Generator.
- Multisearch API.

 
Any kind of contributions are welcome, so if you're a developer and you like any of this projects feel free to contact me to become a developer :D

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