ASP.NET - Disable fields on click

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ASP.NET

.NET

I have a page with multiple buttons.
When i click on a button, it triggers a SQL procedure and runs it.
Till that process finishes i want all the other buttons in the page to be disabled.
I use the below code but it disables only the button which i clicked and not the remaining buttons.

Please help!

protected void Page_Load(object sender, EventArgs e)
		{
			this.DisableButtonOnPostBack(this.btnGo, "Wait...");
		}

		public void DisableButtonOnPostBack(Button button, string text)
		{
	button.Attributes["onclick"] =
	string.Format("this.value = '{0}';this.disabled = true;{1};",text,
                        button.Page.ClientScript.GetPostBackEventReference(button, null));
		}
	}

[Edit]Removed shouting[/Edit]