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Message box in asp.net website using JavaScript

Introduction: In previous articles i explained How to show message box and redirect to another page/website in visual studio using JavaScript. and How to call java script function from code behind file in asp.net and How to disable Right click on asp.net website page using JavaScript and JavaScript validations in asp.net website
In this article i  am going to explain how to show Message box in asp.net website using JavaScript.I will also mentioned how to solve the error Message box not working in UpdatePanel. One of the frequent requirement in asp.net application is to show some message or result in message box. In this article i have written the code to show message box in asp.net application using JavaScript.

C#.Net Code to show Message box in asp.net website using JavaScript

 In the code behind file(.aspx.cs) write the code as:

  protected void btnMsg_Click(object sender, EventArgs e)
    {
 ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), Guid.NewGuid().ToString(), "alert('Record saved successfully');", true);
    }

OR
  • include namespace in the code behind(.aspx.cs) file as:
using System.Web.Script.Serialization;

  protected void btnMsg_Click(object sender, EventArgs e)
    {
var message = new JavaScriptSerializer().Serialize("Record saved successfully");
        var script = string.Format("alert({0});", message);
        ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), "", script, true);
    }

Note: If you want to show message inside UpdatePanel then the above code will not work. Use the below code instead

  ScriptManager.RegisterStartupScript(this, this.GetType(), "Message", "alert('Record saved successfully');", true);       
 
VB.Net Code to show Message box in asp.net website using JavaScript

 In the code behind file(.aspx.vb) write the code as:

 Protected Sub btnMsg_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnMsg.Click
ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(),      Guid.NewGuid().ToString(), "alert('Record saved successfully');", True)
End Sub

OR
  •  Include namespace in the code behind file(.aspx.vb) as:
Imports System.Web.Script.Serialization

Protected Sub btnMsg_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnMsg.Click
  Dim message = New JavaScriptSerializer().Serialize("Record saved successfully")
                Dim script = String.Format("alert({0});", message)
                ScriptManager.RegisterClientScriptBlock(Page, Page.[GetType](), "", script, True)
End Sub

Note: If you want to show message inside UpdatePanel then the above code will not work. Use the below code instead

ScriptManager.RegisterStartupScript(Me, Me.[GetType](), "Message", "alert('Record saved successfully');", True)

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5 comments

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Anonymous
admin
September 13, 2013 ×

tnx. it helps me

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September 13, 2013 ×

i am glad to know that my article helped you..keep reading

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rohidas
admin
March 11, 2014 ×

Ur doing gr8 job. Keep it up

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March 14, 2014 ×

Hello rohidas..thanks for appreciating my work..i am glad you found this article helpful..stay connected and keep reading..:)

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June 20, 2015 ×

Good work , but still need to try it

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