How to change a label on Form1 from Form2?

Question

I am having trouble changing a label on a different form. Can anyone tell me what I'm doing wrong here? Thanks.

On Form 1, I have the following, where label1 is defined in Form1.Designer:

public string Lbl
        {
            get {
                return label1.Text;
            }
            set {
                label1.Text = value;
                MessageBox.Show(label1.Text); //Debug: Value here shows correctly but label does not actually change on Form
            }
        }

On Form2 I have this:

        void setLabelInForm1()
        {
            Form1 frm1 = new Form1();
            frm1.Lbl = "LOADED";
        }

private void button1_Click_1(object sender, EventArgs e)
        {
                ........................
                setLabelInForm1();
                .......................
        }

Alan · Answer

A further thought here. If Form1 is the start up form then you don't want to create a new instance - you want to access the existing instance: void setLabelInForm1() { Form1 frm1 = (Form1)Application.OpenForms[Form1]; frm1.Lbl = LOADED; frm1.Visible = true; // if necessary }

John Beeman · Answer

Works perfectly. Thanks for both answers.

Satish Kathi · Answer

You are not displaying the Form1 hence you are not seeing the value. Just add frm1.Show(); after assigning the value to the Label. See the code below in bold font public string Lbl { get { return label1.Text; } set { label1.Text = value; MessageBox.Show(label1.Text); //Debug: Value here shows correctly but label does not actually change on Form } } On Form2 I have this: void setLabelInForm1() { Form1 frm1 = new Form1(); frm1.Lbl = LOADED; frm1.Show(); } private void button1_Click_1(object sender EventArgs e) { ........................ setLabelInForm1(); ....................... }