How to update the textbox in Form1 from Form2

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I have 2 forms, Form1 and Form2.

In Form1 i have textbox, linklabel and button. When i click on linklabel it opens Form2.

In Form2 i will take input from textbox and store it in the variable 'str'. When i click on button in Form2, it should close Form2 and update the textbox in Form1 with the value in 'str'.

C#

public partial class Form2: Form
    {
 private void button1_Click(object sender, EventArgs e)
        {
string str=textbox1.Text;
// code here to set the textbox value in Form1
this.close();
}

Posted 16-Jul-13 23:48pm

SrinivasTiru

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Comments

Nirav Prabtani 17-Jul-13 5:55am

You mean both textboxes are on diff. pages, right??

[no name] 17-Jul-13 6:11am

Pass the string through the Form2 constructor.

Dheeraj_Gupta 17-Jul-13 6:12am

You are working with windows app or web app...

SrinivasTiru 17-Jul-13 7:25am

windows app

5 solutions

Solution 6

You can show the Form2 as model dialog having parent Form1, and when closing the Form2 set DialogResult. Check DialogResult in Form1 and update textbox of Form1.
Below is the code:

C#

public partial class Form1 : Form
   {
       public static string str1;
       public Form1()
       {
           InitializeComponent();
       }

       private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
       {
           Form2 form2 = new Form2();
           if(form2.ShowDialog()==DialogResult.OK)
           {
               textBox1.Text = str1;
           }
       }
   }

Form 2

C#

public partial class Form2 : Form
    {
        public string str;
        public Form2()
        {
            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)
        {
            str = textBox1.Text;
            Form1.str1 = str;
            this.DialogResult = DialogResult.OK;
            this.Close();

        }
    }

Posted 17-Jul-13 0:39am

RuchiH

Comments

SrinivasTiru 17-Jul-13 7:43am

In Form2 when i click on button the value of the string in inserting into the textbox in Form1 but Form2 is not closing when i click on the button.

Solution 5

Here a good example.. try it

http://www.daniweb.com/software-development/csharp/threads/358513/pass-the-text-box-value-from-one-form-to-another-form-textbox[^]

Posted 17-Jul-13 0:31am

amnk.info

Solution 3

you can pass the string to constructor of Form1,like this:

C#

public partial class Form2: Form
    {
 private void button1_Click(object sender, EventArgs e)
        {
string str=textbox1.Text;
code here to set the textbox value in Form1
this.close();
Form1 f1=new Form1(str);
f1.Show();
}


public partial class Form1: Form
{
   public Form1(String str)
     {
        this.textbox1.Text=str;// textbox in Form1
     }
}

i think it'll work for you.

Posted 17-Jul-13 0:31am

hamed1991

Solution 4

you can pass the string to constructor of Form1,like this:

C#

public partial class Form2: Form
    {
 private void button1_Click(object sender, EventArgs e)
        {
string str=textbox1.Text;
code here to set the textbox value in Form1
this.close();
Form1 f1=new Form1(str);
f1.Show();
}


public partial class Form1: Form
{
   public Form1(String str)
     {
        this.textbox1.Text=str;// textbox in Form1
     }
}

i think it'll work for you.

Posted 17-Jul-13 0:31am

hamed1991

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Naz_Firdouse · Accepted Answer · 2013-07-17T00:26:00

Write a property in Form1 which holds the value of textbox like

C#

private string _busnamevar = string.Empty;
 public string Busnamevar
 {
     get
     {
         return _busnamevar;
     }
     set
     {
         _busnamevar = value;
         textBox1.Text = Busnamevar;
     }
 }

Button click event in Form1

C#

private void button1_Click(object sender, EventArgs e)
{
    Form2 fr = new Form2(this);
    fr.Show();
}

Declare a variable in Form2 like

C#

private Form1 form1;

From2 constructor

C#

public Form2(Form1 f)
{
    form1 = f;
    InitializeComponent();
}

button click in Form2

C#

private void button1_Click(object sender, EventArgs e)
{
    string str = textBox1.Text;
    // code here to set the textbox value in Form1
    form1.Busnamevar = str;
    this.Close();

}

How to update the textbox in Form1 from Form2

5 solutions

Solution 2

Solution 6

Solution 5

Solution 3

Solution 4

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