Accessing a textbox value from form1 in form2

Question

I have a textbox on form1.
What I want to do is to get the value of the textbox from form1 into form2.
How can I do this?

score 1 · Accepted Answer · edited Jul 08 '18 at 17:40

1

What I did was create a new project and add a second form then added a textbox to both forms, with a button on Form1 to push the value of its text box to Form2.

To achieve this, create a Property on Form2 and set it from Form1. Like this:

Form1

public partial class Form1 : Form
{
    Form2 frm2;
    public Form1()
    {
        InitializeComponent();
        frm2 = new Form2();
        frm2.Show(this);
    }

    private void button1_Click(object sender, EventArgs e)
    {
        frm2.ModifyTextBoxValue = textBox1.Text;
    }
}

Form2

public partial class Form2 : Form
{
    public Form2()
    {
        InitializeComponent();
    }

    public string ModifyTextBoxValue
    {
        get { return textBox1.Text; }
        set { textBox1.Text = value; }
    }
}

Done this way, the same property can also be used to pull data from Form2 if desired.

edited Jul 08 '18 at 17:40

Shog9

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answered Nov 26 '12 at 01:58

Mark Hall

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why there is error on textbox1.Text when I add the public string ModifyTextBoxValue? – user1647667 Nov 26 '12 at 02:14
@user1647667 What error are you getting, the above code works correctly – Mark Hall Nov 26 '12 at 02:19
textBox1.Text does not exist in the current context. I just add textbox on the form2 that contains the same property name for the textbox. and same textbox property name in form1 @Mark Hall – user1647667 Nov 26 '12 at 02:23
@user1647667 Make sure you use the Property as written with the name of your TextBox in place of the TextBox that I used(TextBox1). All I did was create a new project and add a second form then added a textbox to both of them. What is the names of your Form1 and Form2 textbox, I will alter code to use them – Mark Hall Nov 26 '12 at 02:31

score 0 · Answer 2 · edited May 23 '17 at 11:48

you could use the .Tag property (look at my question here the simple way to do it is like this: add another textBox in form2

do this in the form1. this code will store the texBox.text in form1

try
{
    private void change_Click(object sender, EventArgs e)
    {
         form1 frm1 = new form();
         frm1.Tag = this.textBox1.text;
         frm1.ShowDialog();
    }
}
catch (Exception ex)
{
   MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}

then write this when you load your form2. this code will replace texBox2 value with the value of texBox1

string myText = (string)this.Tag;
   this.textBox2.text = myText;

Accessing a textbox value from form1 in form2

2 Answers2

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