how do you pass a textbox value in form2 to form1 in c#

Question

Hello everyone I'm new to c#, using visual c# 2010 and I'm trying to learn the basics.

I've created two forms (Form1 and Form2)

each form has a text box and a button

my experiment( form1 to form2) is as follows:

I've declared a string

public string deneme; I made both text boxes public, and in form 1 button I write the following:

deneme= textbox1.text;
Form2 frm2 = new Form2();
form2.show();

form2.textbox1.text= deneme;

when I do this it works and I see my input on form2 textbox. What I want to do is; to press the button on form1 and open form2, then write something on the text box and display that input on form1 text box, I use the same method but it returns nothing.. what an I doing wrong?

and I'm sorry for my bad english

Please go to the below link to find out your solution – Sohail Nov 10 '12 at 21:42 — Sohail, Nov 10 '12 at 21:42

Viacheslav Smityukh · Answer 1 · 2012-11-11T15:01:23.267

1

The simple way is a property of the Form2

You can add a property to the form2

public string Result{get;set;}

and check it in external code

form1.textbox1.text= form2.Result;

edited Nov 11 '12 at 15:01

answered Nov 10 '12 at 20:45

Viacheslav Smityukh

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4
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what does form2.textbox1.text = form2.result; do exactly? I'm confused I want Form1 text box to be = to Form2 text box – AsIm Gunduz Nov 10 '12 at 21:07
I'm also confused. It should likely be: `form1.textbox1.Text = form2.Result;` – Bernard Nov 10 '12 at 21:08

score 0 · Answer 2 · answered Nov 11 '12 at 11:10

0

deneme= textbox1.text;
Form2 frm2 = new Form2(dename);
form2.show();

In form2, do this in the Initialize method:

Initialize(string name)    
{
        form2.textbox1.text= name;
}

answered Nov 11 '12 at 11:10

Samarth Agarwal

5
2

score 0 · Answer 3 · edited May 23 '17 at 11:56

0

Check these out for more than just a single value passed to another form, but to also handle passing values back/forth and also hooking into events... Not advanced stuff, but does have some step-by-step samples too

Prior posting here

edited May 23 '17 at 11:56

Community

1
1

answered Nov 11 '12 at 14:23

DRapp

47,638
12
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142

score 0 · Answer 4 · edited May 03 '13 at 09:42

0

Hello all I have solved my issue, here is what I have done !

In the second form, I have write the following codes

Form1 mymainform;

public Form2(Form1 m)
{
    InitializeComponent();
    afrm1 = m;
}

and in the button click I write the following

mymainform.Textboxnameinform1.text = textboxnameinform2.text;    
this.close();

and in Form1, where I have the button to call form2 I write the following codes

Form2 frm2 = new Form2(this);    
frm2.Show();

if anyone is having the same difficulty and couldn't figure it out, please don't hesitate to contact me I'll be happy if I can help you

edited May 03 '13 at 09:42

Patrick D'Souza

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answered Nov 15 '12 at 11:03

AsIm Gunduz

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After I have followed by your coding, I get this problem. [code]An object reference is required for the non-static field, method, or property[/code] – user3423149 Dec 01 '14 at 04:33

score 0 · Answer 5 · answered May 17 '20 at 08:31

 //this code worked for me
 //in form2 put following code prevent form from opening multiple times  
 public partial class Form2 : Form
    {
        public Form2()
        {
             InitializeComponent();
        }
        private static Form2 Instance;
        public static Form2 GetInstance()
            {
               if (Instance ==null || Instance.IsDisposed)
                {  
                    Instance = new Form2();
            }
            else
             {
                Instance.BringToFront();
            }
                 return Instance;
         }

 // in form1

 public partial class Form1 : Form
     {
         public Form1()
        {
             InitializeComponent();
        }


         private void Button2_Click(object sender, EventArgs e)
         {
            Form2 form2 = Form2.GetInstance();
            form2.textBox1.Text = textBox1.Text;
            form2.Show();
        }
    }

how do you pass a textbox value in form2 to form1 in c#

5 Answers5

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