Problem when changing button font at runtime

[Olivier Gaumond]

I create a simple Windows Forms application and drop a simple button
on the form with the designer. I define the Text of the button (i.e.
"Button test") and I set the button width so I have plenty of space to
display the text (i.e. 120). Then I add the following code in the
button's click handler.

private void button1_Click(object sender, System.EventArgs e)
{
button1.Font = new Font(FontFamily.GenericSansSerif, 10,
FontStyle.Bold);
}

When I click the button, the button's text is displayed with the new
Font but the last letter (t) is truncated and not displayed properly.
I can't isolate exactly the conditions in which this behavior is
produced but the above conditions produce the bug. The complete code
is below.

Any ideas on this? A bug in the button code? Any way to avoid this?

Olivier

---
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace WindowsApplication1
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button button1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;

public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();

//
// TODO: Add any constructor code after InitializeComponent call
//
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(16, 24);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(120, 24);
this.button1.TabIndex = 7;
this.button1.Text = "Button test";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(216, 110);
this.Controls.Add(this.button1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);

}
#endregion

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}

private void button1_Click(object sender, System.EventArgs e)
{
button1.Font = new Font(FontFamily.GenericSansSerif, 10,
FontStyle.Bold);
}
}
}

 

[Eric Cadwell]

Looks like a bug to me. Here's a nasty fix:

Name the button 'Button test '

That gives it enough room to spit out the 't'


HTH;
Eric Cadwell
http://www.origincontrols.com

 

[Herfried K. Wagner [MVP]]

* (e-mail address removed) (Olivier Gaumond) scripsit:

I create a simple Windows Forms application and drop a simple button
on the form with the designer. I define the Text of the button (i.e.
"Button test") and I set the button width so I have plenty of space to
display the text (i.e. 120). Then I add the following code in the
button's click handler.

private void button1_Click(object sender, System.EventArgs e)
{
button1.Font = new Font(FontFamily.GenericSansSerif, 10,
FontStyle.Bold);
}

When I click the button, the button's text is displayed with the new
Font but the last letter (t) is truncated and not displayed properly.
I can't isolate exactly the conditions in which this behavior is
produced but the above conditions produce the bug. The complete code
is below.

I am able to repro that on Windows XP Pro + .NET 1.1. Seems to be a
bug.

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>

<http://www.plig.net/nnq/nquote.html>

 

[Olivier Gaumond]

Anybody has an idea of the proper way to report such bugs to Microsoft??

Olivier

 

[Herfried K. Wagner [MVP]]

* (e-mail address removed) (Olivier Gaumond) scripsit:

Anybody has an idea of the proper way to report such bugs to Microsoft??

People from Microsoft are looking in the groups -- maybe they will read
this thread.

--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>

<http://www.plig.net/nnq/nquote.html>

 

[Eric Cadwell]

If you don't see them respond to this thread post again with BUG in the
subject.

Or call support.

-Eric