How to call javascript method

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Hello
I want to call a javascript method from cs page which I am calling at the time of onchange event of html select . when I bind controls in edit case I want to fill that dropdown from cs page by calling that javascript method .

thanks in advance

Posted 17-Apr-13 20:23pm

shoaib Naeem

Updated 17-Apr-13 21:22pm

_Amy

v2

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Sreenivasa Reddy G · Answer 1 · 2013-04-17T21:36:00

try this ..

XML

<div id="divvvv" runat="server">
    <select id="ddlSelect" onchange="changeTest()" name="select1">
           <option value="0" selected="selected">Choose a color</option>
           <option value="1">Red Star</option>
           <option value="2">Yellow Star</option>
           <option value="3">Pink Star</option>
         </select>




in cs file call like this
  divvvv.Attributes.Add("onClick", "javascript:return BindSelect();");

vinayakJJ · Answer 2 · 2013-04-17T20:41:00

Solution 2

this is how you can call javascipt method from cs page

XML

StringBuilder strBuilder = new StringBuilder();
strBuilder.Append("<script laungauge='javascript'>");
strBuilder.Append(" MethodName();");
//javascript function name
strBuilder.Append("</script>");

//register script

Page.ClientScript.RegisterStartupScript(GetType(), "InitDiag", strBuilder.ToString());

change the MethodName to yours javascript methods name

Posted 17-Apr-13 20:41pm

vinayakJJ

Comments

shoaib Naeem 18-Apr-13 2:48am

hello

thanks for help. I tried above code but it's not call my javascript method.

vinayakJJ 18-Apr-13 3:32am

is your javascript method inside aspx page or in separate .js file
for just testing write this code in your aspx page
function printing()
{
window.print();
}

and then change in my previously given codes method name to printing
like this

StringBuilder strBuilder = new StringBuilder();
strBuilder.Append("<script laungauge='javascript'>");
strBuilder.Append("printing();");
//javascript function name
strBuilder.Append("</script>");

//register script

Page.ClientScript.RegisterStartupScript(GetType(), "InitDiag", strBuilder.ToString());

and check if it works or not

*Karthik Harve* · Answer 3 · 2013-04-17T20:51:00

Solution 3

Hi,

try like below.

C#

ScriptManager.RegisterClientScriptBlock(this, this.GetType(), 'yourKey', 'YourJSFunction();', true);

refer ClientScriptManager.RegisterClientScriptBlock Method (Type, String, String, Boolean)[^]

hope it helps.

Posted 17-Apr-13 20:51pm

Karthik Harve

TrushnaK · Answer 4 · 2013-04-17T20:55:00

Solution 4

try this:-

add script manager in your aspx page.

ScriptManager.RegisterStartupScript(Me,[GetType](),"key name", "javascriptMethodName();",true);

ScriptManager.RegisterStartupScript(Me, [GetType](), "DatePicker", "DatePicker();", True)

Posted 17-Apr-13 20:55pm

TrushnaK