Daily Tips- Tip #14 - How will associate a clientside script with Asp.net Button server control ?

You can do it in 2 ways, they are:
1. Page.ClientScript.RegisterStartupScript() Method
2. Page.ClientScript.RegisterClientScriptBlock() Method

1. Page.ClientScript.RegisterStartupScript() Method
This class would be best used when you have a JavaScript function that you want to initiate when the page is loaded.

Ex:
Page.ClientScript.RegisterStartupScript(this.GetType(), "TestScript",
"function HelloWord() { alert('Hello World'); }", true);

btnTest.Attributes["onclick"] = "HelloWord()";

2. Page.ClientScript.RegisterClientScriptBlock() Method
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "MethodA",
"JSCollections.js");

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Daily Tips- Tip #14 - How will associate a clientside script with Asp.net Button server control ?