Calling Javascript function from server side

Question

On a button click i am calling a server side function in which i am calling a Javascript function like  Page ClientScript RegisterStartupScript      this GetType          scriptsKey          lt script type   text JavaScript   language   javascript   gt test    lt  script gt       But Javascript function is not calling

User · Accepted Answer

You can call the function from code behind like this :

MyForm.aspx.cs

protected void MyButton_Click(object sender, EventArgs e)
{
    Page.ClientScript.RegisterStartupScript(this.GetType(), "myScript", "AnotherFunction();", true);
}

MyForm.aspx

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>My Page</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
    function Test() {
        alert("hi");
        $("#ButtonRow").show();
    }
    function AnotherFunction()
    {
        alert("This is another function");
    }
</script>
</head>
<body>
<form id="form2" runat="server">
<table>
    <tr><td>
            <asp:RadioButtonList ID="SearchCategory" runat="server" onchange="Test()"  RepeatDirection="Horizontal"  BorderStyle="Solid">
               <asp:ListItem>Merchant</asp:ListItem>
               <asp:ListItem>Store</asp:ListItem>
               <asp:ListItem>Terminal</asp:ListItem>
            </asp:RadioButtonList>
        </td>
    </tr>
    <tr id="ButtonRow"style="display:none">
         <td>
            <asp:Button ID="MyButton" runat="server" Text="Click Here" OnClick="MyButton_Click" />
        </td>
    </tr>
    </table> 
</form>

User · Answer

ScriptManager RegisterClientScriptBlock this  this GetType     scr    javascript test      true

User · Answer

This works for me  Hope it will work for you too   ScriptManager RegisterStartupScript this  this GetType     isActive    Test      true     I have edited the html page which you have provided  The updated page is as below       lt html xmlns  http   www w3 org 1999 xhtml  gt       lt head id  Head1  runat  server  gt           lt title gt My Page lt  title gt           lt script src  http   ajax googleapis com ajax libs jquery 1 10 2 jquery min js  type  text javascript  gt  lt  script gt           lt script type  text javascript  gt              function Test                     alert  Hello Test                            ButtonRow   css  display    block                           lt  script gt       lt  head gt       lt body gt           lt form id  form1  runat  server  gt           lt table gt               lt tr gt                   lt td gt                       lt asp RadioButtonList ID  SearchCategory  runat  server  RepeatDirection  Horizontal                          BorderStyle  Solid  gt                           lt asp ListItem gt Merchant lt  asp ListItem gt                           lt asp ListItem gt Store lt  asp ListItem gt                           lt asp ListItem gt Terminal lt  asp ListItem gt                       lt  asp RadioButtonList gt                   lt  td gt               lt  tr gt               lt tr id  ButtonRow  style  display  none  gt                   lt td gt                       lt asp Button ID  MyButton  runat  server  Text  Click Here  OnClick  MyButton Click    gt                   lt  td gt               lt  tr gt           lt  table gt           lt  form gt       lt  body gt       lt  html gt        lt script type  text javascript  gt                lt   SearchCategory ClientID  gt  input   change function                  alert  hi                    ButtonRow   show                     lt  script gt

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