Changing textBox from Method

[ormonds]

I'm having trouble getting a textBox to accept a string from within a method. Start with:-

   private static Form1 form = null;

    public Form1()
    {
        InitializeComponent();
        form = this;
    }

    private void Form1\_Load(object sender, EventArgs e)
    {
        textBox2.Text = "Initialising.....";
        this.Show();
        Refresh();

textBox2 shows up OK. However

       form.UpDateText("Checking validity of " + FileName);

and

   public void UpDateText(string ThisText)
    {
        using (StreamWriter logfile = new StreamWriter("D:\\\\TeklaZipping.log", true))
        {
            logfile.WriteLine(ThisText);
            logfile.Close();
        }
        Form1 frm1 = new Form1();
        frm1.textBox1.Text += ThisText + System.Environment.NewLine;
        frm1.Refresh();
    }

runs, and writes to logfile, but doesn't update textBox1. Any help appreciated.

ormonds

[Lost User]

It is updating textBox1 in a new instance of frm1. Try something like below;

 //Form1 frm1 = new Form1();
 this.textBox1.Text += ThisText + System.Environment.NewLine;

Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^] "If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.

[Mycroft Holmes]

ormonds wrote:

Form1 frm1 = new Form1();

This creates a new instance of Form1 and updates the textbox on the new instance. Remove the line and change frm1.textbox1 to this.textbox1 (this is not required but will help you to identify the source of the control).

Never underestimate the power of human stupidity - RAH I'm old. I know stuff - JSOP

[ormonds]

Thank you, appreciated.