how to send result value from server side to client side?

Question

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Hi All,

I am calculating two numbers in server-side and that result is showing there.
Now I want to show that output result with javaScript message box.
I want to send data from server side to client side..

ex:

C#

int num1=Convert.ToInt32(txt1.text);
int num2=Convert.ToInt32(txt2.text);
int res=num1+num2;

btnsave.Attributes.Add("onclick", "return op();");

I am using like this. Please give me valuable suggestions.

Thank You
Hari

Posted 6-Mar-13 18:58pm

Hari Krishna Prasad Inakoti

Updated 6-Mar-13 20:15pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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2 solutions

Solution 2

You can use HiddenField or else access it directly using code blocks (<%= %>).

1. HiddenField
Design

ASP.NET

<asp:hiddenfield id="HiddenField1" runat="server" />

Code

C#

HiddenField1.Value = "myValue";

Javascript

JavaScript

var myValue = document.getElementById('HiddenField1').value;

2. using code blocks (<%= %>)
Make your server variable as Public Property.

Now access it like below.

JavaScript

var variable = '<%= ServerVaraible %>';

Refer -
1. Passing in server side variable into javascript[^].
2. how to use server side variable in javascript in asp.net[^]

Posted 6-Mar-13 20:29pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Updated 6-Mar-13 20:30pm

v2

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J.Karthick · Accepted Answer · 2013-03-06T20:22:00

Solution 1

Try this,

XML

string strScript="<script> alert('Sum of num1 and num2 is : ";
strScript += res.ToString();
strScript += "');</script>";


ClientScript.RegisterClientScriptBlock(GetType(), "Alert", strScript.Trim(), true);

Posted 6-Mar-13 20:22pm

J.Karthick