I need to call some codeBehind function from JavaScript. For this, I have a hidden button (asp:Button).
When I click this button from javaScript like:
var btn = document.getElementById("btnHidden");
btn.click();
I got an error:
System.Web.HttpException: The state information is invalid for this page and might be corrupted.
Could you please help me?
i tried like this and is working
<head runat="server">
<title>Untitled Page</title>
<script language="javascript" type="text/javascript">
function btnClick()
{
alert("clicked!!!");
var btn=document.getElementById('<%=Button1.ClientID%>');
btn.click();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
test page
<input type="button" id="btn" onclick="btnClick()" value="Click" />
<asp:Button ID="Button1" style="display:none" runat="server" Text="Button" OnClick="Button1_Click" />
</div>
</form>
</body>
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
}
}
In the first button client click i tried to raise the second button click event.
first you have to hide this button with css not server side , i mean display:none not Visible=false;
like this :
Button1.Attributes.CssAttributes.Add("Display","None");
then you should use ClientID
document.getElementById('<%=Button1.ClientID%>').click();
try to set UseSubmitBehaviour=false on button
hope this helps
It should be like this,
var btn = document.getElementById('<%= btnHidden.ClientID %>').value;
