Pass value from one form to another form in c#

Question

I have to pass id from one form to another from in C#.

I am not able to do this.

The C# code is:

private void btnedit_Click(obje         


        

Answer 1

Make a property in AddInvoice:

public long CellValue { get; set }

Assign to it:

private void btnedit_Click(object sender, EventArgs e)
{
    foreach (DataGridViewRow a in dataGridViewUnPaidList.Rows)
    {
        if (a.Cells[0].Value != null)
        {
            AddInvoice ad = new AddInvoice();
            ad.CellValue = Convert.ToInt64(a.Cells[1].Value);
            ad.Show();

            NonPaideData non = new NonPaideData();
            non.Hide();
        }
        else
        {
            MessageBox.Show("Now Row Is Selected");
        }
    }

And just use it in AddInvoice as CellValue.

Oh, and if that's actually the code, I think you probably meant this.Hide(); instead of creating a new NonPaideData and hiding that.

Answer 2

In Form1

private void ShowForm2()
{
    string value = TheTextBox.Text;
    Form2 newForm = new Form2();
    newForm.TheValue = value;
    newForm.ShowDialog();
}

In Form2

private string _theValue;
public string TheValue 
{ 
    get
    {
        return _theValue;
    }
    set
    {
        _theValue = value; 
        // do something with _theValue so that it
        // appears in the UI

    }
}

See this code i think this will help you.