Adding contents of text file to child form

B Rawlings

I am trying to add the contents of a text file to a text box in a child form using 'Open' from the parent file. This is what I have so far:

private void openToolStripMenuItem_Click(object sender, EventArgs e)

{

openFileDialog1.InitialDirectory = Directory.GetCurrentDirectory();

// Display the file open dialog box and show only text files.

DialogResult responseDialogResult;

openFileDialog1.Filter = "Text Files (*.txt)|*.txt";

responseDialogResult = openFileDialog1.ShowDialog();

// Check that the user did not click the cancel button.

if (responseDialogResult != DialogResult.Cancel)

{

// Open the child form.

Form2 childOneForm = new Form2();

childOneForm.MdiParent = this;

childOneCountInteger++;

childOneForm.Text = openFileDialog1.FileName;

childOneForm.Show();

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes12y ago
Accepted answer
Oops, just noticed that my answer is writing the file contents to the child form's caption rather than to a textbox on that form :(

To write it to a textbox first change the textbox's Modifiers property (in the Properties Box) from private to internal so it can be directly accessed from other forms in the same program.

Now replace this line:

childOneForm.Text = System.IO.File.ReadAllText(openFileDialog1.FileName);

with this one (use the actual name of the textbox if it's not textBox1):

childOneForm.textBox1.Text = System.IO.File.ReadAllText(openFileDialog1.FileName);
B Rawlings12y ago
Thank you sooooo much!
B Rawlings12y ago

Thanks for your replay but I am still not able to get the contents of the text file to show in the textbox
Any idea?
Vulpes12y ago
Try this:

// Open the child form.

Form2 childOneForm = new Form2();

childOneForm.MdiParent = this;

childOneCountInteger++;

childOneForm.Text = System.IO.File.ReadAllText(openFileDialog1.FileName);

childOneForm.Show();