In this post am going to explain how to add a please wait button for a asp button . for This we are using two methods called GetPostBackEventReference() and RegisterClientScriptBlock() of client script.
After adding the code please add the following name spaces on the top
After adding the Name spaces add the following code in the code behind :
To do this first we will create a new aspx page with the following aspx code
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<div>
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
</div>
</div>
</form>
</body>
</html>
After adding the code please add the following name spaces on the top
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
After adding the Name spaces add the following code in the code behind :
protected void Page_Load(object sender, EventArgs e)
{
System.Threading.Thread.Sleep(5000);
Button1.Attributes.Add("onclick", ClientScript.GetPostBackEventReference(Button1, "") + ";this.value='Please wait...';this.disabled = true;");
}
protected void Button1_Click(object sender, EventArgs e)
{
System.Threading.Thread.Sleep(5000);
ClientScript.RegisterClientScriptBlock(this.GetType(), "reset","document.getElementById('" + Button1.ClientID + "').disabled=false;", true);
}Output :
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