1.公共方法
public class MyTextBox:TextBox
{protected override void OnEnabledChanged(EventArgse)
{base .OnEnabledChanged(e); // 设置Enabled为False时 if ( this .Enabled)
{this .SetStyle(ControlStyles.UserPaint, false );
} else this .SetStyle(ControlStyles.UserPaint, true ); // 再描绘 this .Invalidate();
} // 描绘TextBox protected override void OnPaint(PaintEventArgse)
{base .OnPaint(e);
System.Drawing.Brushb = new System.Drawing.SolidBrush( this .ForeColor);
StringFormatsf = new StringFormat();
sf.LineAlignment = StringAlignment.Center;
sf.Alignment = StringAlignment.Center; // 描绘字符串 // e.Graphics.DrawString(this.Text,this.Font,b,-1,1); e.Graphics.DrawString( this .Text, this .Font,b, this .ClientRectangle,sf);
b.Dispose();
}
}
2.页面 designer.cs修改为 MyTextBox
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