How do I send server data to client java script dynamically

Question

0.00/5 (No votes)

See more:

I have selected check box items car, bike, lorry

by using foreach am taking data's from database for selected item using

C#

string data1 = serializer.Serialize(rows);

problem is i need to (pass )display a data one by one for selected items

ScriptManager.RegisterClientScriptBlock

i used this

am getting out put only for lorry , the data is passing to script only when page load completes fully . what i need is i need to break and have to display in script immediately

What I have tried:

if (data1 != "")
{
HiddenField1.Value = data1;
//string strinfo = "data('" + data1 + "');";
ScriptManager.RegisterClientScriptBlock(this.Page, Page.GetType(), "Text", "data()", true);

}

Posted 21-Dec-16 22:33pm

Member 12119075

Updated 28-Dec-16 8:26am

v2

Add a Solution

Comments

F-ES Sitecore 22-Dec-16 4:45am

If that code runs in a loop for each item then this line

HiddenField1.Value = data1;

overrides the previous data. So in the first loop it is set to "car", in the second to "bike" and in the third to "lorry", with each one overwriting the last which is why once your loop is done it only holds data for lorry.

Your second issue is when you use RegisterClientScriptBlock the "key" param ("Text" in your example) is used to ensure a script is added only once. In the first loop you add a call to "data()" with the key Text, in the second loop you try to add something with that key again so .net simply ignores that add and so on. Depending on what "data" does that might not be a problem, but it's something you need to keep in mind for the future.

Member 12119075 22-Dec-16 4:56am

what will be a solution for done this

F-ES Sitecore 22-Dec-16 5:08am

It depends what you want to do on the client. Personally I'd simply build up a List<string> of your three items and then parse that to JSON and write something to the page like

var data = <%=JsonGoesHere%>;

that would result in a json object in "data" on the client that you could then use in js to populate your fields or do whatever with. It's better to only use your .net code to generate the data to write to the page and have the js on the page use the data rather than try and generate a lot of dynamic js in your server code.

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

ZurdoDev · Answer 1 · 2016-12-28T08:26:00

Solution 1

Use the document.ready event in JavaScript. $( document ).ready() | jQuery Learning Center[^]. This will fire in JavaScript when the page is done loading. The code you have is running on the server.

Posted 28-Dec-16 8:26am

ZurdoDev