how to pass a value from one window to another window in wpf

Question

0.00/5 (No votes)

See more:

i have two window.
1. ListName
2. Student
I wanna to pass value from ListName to Student
List page Code:-

string str = (dgRecord.Columns[0].GetCellContent(row) as TextBlock).Text;
            Student student = new Student();
            student.Tbox.Text = str;
            DialogResult = true;

and My student page code is:-
I declare Tbox like

public TextBox Tbox = new TextBox();

adn code is:-

ListName frm = new ListName();
           frm.ShowDialog();
           if (frm.DialogResult.HasValue && frm.DialogResult.Value)
           {
               txtID.Text = Tbox.Text;
               txtID.Focus();
           }

txtID.text is null why ??
anybody can me tell.

Posted 27-Feb-15 23:56pm

J{0}Y

Add a Solution

Comments

Afzaal Ahmad Zeeshan 28-Feb-15 6:02am

You can use the namespace of your project, and call members on different classes to get their values.

J{0}Y 28-Feb-15 6:20am

why namespaces?? both are in same folder

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)

OriginalGriff · Accepted Answer · 2015-02-28T00:13:00

Solution 1

If they are separate forms, then you need to treat them as separate objects.

These are WinForms based examples, but the WPF system is the same:
Transferring information between two forms, Part 1: Parent to Child[^]
Transferring information between two forms, Part 2: Child to Parent[^]
Transferring information between two forms, Part 3: Child to Child[^]
So the techniques are the same, even if some of the controls are different.

Posted 28-Feb-15 0:13am

OriginalGriff

Comments

J{0}Y 28-Feb-15 6:28am

i am not use window form

OriginalGriff 28-Feb-15 6:43am

I know that, that's why I said "So the techniques are the same, even if some of the controls are different."

J{0}Y 28-Feb-15 7:02am

ohk i can try.but i have a doubt that is my code is wrong or it have a small Mistake??

OriginalGriff 28-Feb-15 7:15am

It has lots of mistakes! :laugh:
Like accessing controls on a different form...

But you do realize that creating a new instance of anything does just that: create a new instance. It doesn't display it, or save it so you can fetch it later.
So when you say
Student student = new Student();
student.Tbox.Text = str;
DialogResult = true;
The only reference you have to the new student instance will be discarded at the end of the method?