Invoking the JavaScript Function from server side

Hari Shanker

10y884.NET

Hi Everyone,

I want to call the Java Script function in code behind from the page load of master page .

function MyFunction() {

var hiddenvalue = document.getElementById('sometext').value;

if (hiddenvalue == 'Hindi') {

document.getElementById("someid").innerText = "HindiText";

else

{

//english text

}

and in the body i have called the onloadevent(

but the problem is when i am invoking the above function from code behind the text is not changing

ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "MyFunction", "MyFunction();", true);

Thanks,

Hari

5 Replies

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Dorababu Meka10y ago
Accepted answer
Tried the following and able to see the result as needed
<body onload="MyFunction();">
<form id="form1" runat="server">
<asp:ScriptManager ID="scriptmgr" runat="server">asp:ScriptManager>
<div>
<asp:TextBox ID="txtLanguage" runat="server" Text="Hindi">asp:TextBox>
<asp:TextBox ID="txtSelectedLanguage" runat="server">asp:TextBox>
div>
form>
<script type="text/javascript">
function MyFunction() {
var hiddenvalue = document.getElementById("<%= txtLanguage.ClientID %>").value;
if (hiddenvalue == 'Hindi') {
document.getElementById("txtSelectedLanguage").innerText = "HindiText";
}
else {
//english text
}
}
script>
body>
If you want the same try this in page_load
ClientScript.RegisterStartupScript(GetType(), "MyFunction", "MyFunction();", true);
Dorababu Meka10y ago
You need to use the following
ClientScript.RegisterStartupScript(GetType(), "MyFunction", "MyFunction();", true);
instead of
ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "MyFunction", "MyFunction();", true);
Hari Shanker10y ago
Hi Joginder,

I have written one javaScript function and that function i want to call through code behind in the pageload of the master page.. i have written the code but its not working.

ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "MyFunction", "MyFunction();", true);

Please let me know any alternate way..

Thanx
Hari
Joginder Banger10y ago
Hi Hari,
why are u doing this way if you have two or more condition then save the data in hidden filed and get data in javaScript and change the condition as per requirement.
Dorababu Meka10y ago
Any script errors you are getting? In the code you posted I could see a closing brace is missing