C#•15mo ago

❔ Get Informations of Form 1 in Form 2

Hello, I want to copie the Labeltext in Form 1 with the name "LinieValue" to Form2 inLabel4. How can i do this?

11 Replies

Anu6is•15mo ago

you can pass the data in the constructor of Form2 (if some action in form1 opens form2) you could also have a public property in form2 that you can set from wherever the form is being shown

Pobiega•15mo ago

Its probably easier to just pass a reference of the form itself to the other form

nichtfamedominikOP•15mo ago

how can i do that? im completly new so

Pobiega•15mo ago

how do you create your Form2 instance? and where

nichtfamedominikOP•15mo ago

i created form 2 via project direcly and via a button Form1 closes and form2 opens this.Hide(); Form2 form2 = new Form2(); form2.ShowDialog(); this.Close(); like this

Pobiega•15mo ago

okay change the second line to Form2 form2 = new Form2(this); and update the form2 constructor to match you now have a reference to form1 in form2

nichtfamedominikOP•15mo ago

so in form 2 i do? EDIT: Got it and how can i get with this a Text of a Label in Form1 to Form2?

Pobiega•15mo ago

well, you can now access things from form1 in form2 via that reference so you'd make a public property that exposes the data you need from form1, then just access that in form2

nichtfamedominikOP•15mo ago

so in a TextChanged Event i write "Form2.Label4.Text = StreckeValue.Text"?

Pobiega•15mo ago

I don't know what your code looks like my dude, I have no idea

public class Form1
{
    private Textbox _textBox1 = new();

    public string TextBox1Value => _textBox1.Value;
}

public class Form2
{
    private readonly Form1 _form1;

    private Label _label1 = new();

    public Form2(Form1 form1)
    {
        _form1 = form1;
    }

    public void Whatever()
    {
        _label1.Text = _form1.TextBox1Value;
    }
}

public class Form1
{
    private Textbox _textBox1 = new();

    public string TextBox1Value => _textBox1.Value;
}

public class Form2
{
    private readonly Form1 _form1;

    private Label _label1 = new();

    public Form2(Form1 form1)
    {
        _form1 = form1;
    }

    public void Whatever()
    {
        _label1.Text = _form1.TextBox1Value;
    }
}

something like this.

Accord•15mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Get Informations of Form 1 in Form 2