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Call JavaScript from code behind in asp.net

1. Software requirement
2. Prerequisite knowledge
3. Steps of execution
4. Create a new project
5. Add controls to the page
6. Add JavaScript code in code behind
7. Output

Software requirement

Prerequisite knowledge

1. How to create a project using visual studio?
2. Basic knowledge about basic controls like button etc and their events.

Steps of execution

1. Create a new project
2. Add controls to the page
3. Add JavaScript code in code behind

Create a new project

Add controls to the page

Add JavaScript code in code behind

using System;

public partial class _Default: System.Web.UI.Page {
	protected void Page_Load(object sender, EventArgs e) {

}
	protected void Button1_Click(object sender, EventArgs e) {
		this.ClientScript.RegisterStartupScript(this.GetType(), "ALERTMESSAGE", "alert('Button clicked')", true);
	}
}

1. Type – Type of start up script to register
2. Key – This is the key of the script to register
3. Script – JavaScript which you want to register.
4. AddScripttags – It is a Boolean value (when set to true) ensures that script is added between the script tags.

Output