One tip for javascript to invoke variables in asp.net web page
2007-08-17 19:28
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One tip for javascript to invoke variables in asp.net web page
Here’s what I used in an asp.net web page.
<head runat="server">[/b]
<title>NO TITLE</title>
<script language="javascript">
function refreshPage()
{
window.Open(‘OneWebPage.aspx?para=<% =variable %>[/b]’);
}
</script>
</head>
<body onload="<%=refereshPage%>">
……
This will raise the following error:
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
This is an asp.net web page --- <head runat=”server”> --- is raising the exception and we can not remove the tag runat=”server” from the head element when using ASP.NET 2.0 themes. Thus, we can not use ServerVariables with expressions to dynamically assign a parameter, or we have to remove runat=”server” and stop using themes.
There is one solution for this issue. Refer to the following code snippet in PAGE_LOAD method.
protected string bodyOnLoad = @"javascript:window.open('OneWebPage.aspx?para=@variable');";
protected void Page_Load(object sender, System.EventArgs e)
{
….
bodyOnLoad = bodyOnLoad.Replace("@variable", ONEPARAMETER.ToString());
….
}
Here’s what I used in an asp.net web page.
<head runat="server">[/b]
<title>NO TITLE</title>
<script language="javascript">
function refreshPage()
{
window.Open(‘OneWebPage.aspx?para=<% =variable %>[/b]’);
}
</script>
</head>
<body onload="<%=refereshPage%>">
……
This will raise the following error:
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
This is an asp.net web page --- <head runat=”server”> --- is raising the exception and we can not remove the tag runat=”server” from the head element when using ASP.NET 2.0 themes. Thus, we can not use ServerVariables with expressions to dynamically assign a parameter, or we have to remove runat=”server” and stop using themes.
There is one solution for this issue. Refer to the following code snippet in PAGE_LOAD method.
protected string bodyOnLoad = @"javascript:window.open('OneWebPage.aspx?para=@variable');";
protected void Page_Load(object sender, System.EventArgs e)
{
….
bodyOnLoad = bodyOnLoad.Replace("@variable", ONEPARAMETER.ToString());
….
}
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