Autoresize textbox control vertically

by

The current selected answer does NOT handle lines with no spaces such as “jjjjjjjjjjjjjjjjjjjj”x1000 (think about what would happen if someone pasted a URL)

This code solves that problem:

private void txtBody_TextChanged(object sender, EventArgs e)
{
    // amount of padding to add
    const int padding = 3;
    // get number of lines (first line is 0, so add 1)
    int numLines = this.txtBody.GetLineFromCharIndex(this.txtBody.TextLength) + 1;
    // get border thickness
    int border = this.txtBody.Height - this.txtBody.ClientSize.Height;
    // set height (height of one line * number of lines + spacing)
    this.txtBody.Height = this.txtBody.Font.Height * numLines + padding + border;
}

More Related Contents:

  1. TextBox not containing "\r\n" strings
  2. how to write every element of an array in a line of a textbox C# [closed]
  3. read text file chunks by chunks by scrollbar [closed]
  4. How to resize an Image C#
  5. Watermark / hint / placeholder text in TextBox?
  6. Set focus on TextBox in WPF from view model
  7. Redirect console output to textbox in separate program
  8. Loop through Textboxes
  9. How to move and resize a form without a border?
  10. How to remove the focus from a TextBox in WinForms?
  11. Transparency for windows forms textbox
  12. How do I automatically scroll to the bottom of a multiline text box?
  13. How to set Z-order of a Control using WinForms
  14. Change border color in TextBox C#
  15. how to disable copy, Paste and delete features on a textbox using C#
  16. How can I unmask password text box and mask it back to password?
  17. Open file dialog and select a file using WPF controls and C#
  18. Set focus on textbox in WPF
  19. A textbox/richtextbox that has syntax highlighting? [C#] [closed]
  20. How to auto resize and adjust Form controls with change in resolution
  21. Ghost-borders (‘ringing’) when resizing in GDI+
  22. How to add a line to a multiline TextBox?
  23. Auto highlight text in a textbox control
  24. Only allow specific characters in textbox
  25. Resize Controls with Form Resize
  26. How to change text in a textbox on another form in Visual C#?
  27. Minimize a window in WPF?
  28. Create WPF TextBox that accepts only numbers [duplicate]
  29. Override Paste Into TextBox
  30. Making specific Text Boldefaced in a TextBox

Leave a Comment