组框文本 [英] Group box text

问题描述

我的分组框文字在左边。

My group box text is to the left.

我希望它居中。有没有办法做到这一点？

I want it centered. Is there a way to do that?

推荐答案

看看这是否适合你

See if this works for you

https://stackoverflow.com/questions/31827366/how-to-make-group-box-text-alignment-center-in-win-forms

public class CustomGrpBox : GroupBox
{
    private string _text = "";
    public CustomGrpBox()
    {
        //set the base text to empty 
        //base class will draw empty string
        //in such way we see only text what we draw
        base.Text = "";
    }
    //create a new property a
    [Browsable(true)]
    [Category("Appearance")]
    [DefaultValue("GroupBoxText")]
    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
    public new string Text
    {
        get
        {

            return _text;
        }
        set
        {

            _text = value;
            this.Invalidate();
        }
    }
    protected override void OnPaint(PaintEventArgs e)
    {

        //first let the base class to draw the control 
        base.OnPaint(e);
        //create a brush with fore color
        SolidBrush colorBrush = new SolidBrush(this.ForeColor);
        //create a brush with back color
        var backColor = new SolidBrush(this.BackColor);
        //measure the text size
        var size = TextRenderer.MeasureText(this.Text, this.Font);
        // evaluate the postiong of text from left;
        int left = (this.Width - size.Width) / 2;
        //draw a fill rectangle in order to remove the border
        e.Graphics.FillRectangle(backColor, new Rectangle(left, 0, size.Width, size.Height));
        //draw the text Now
        e.Graphics.DrawString(this.Text, this.Font, colorBrush, new PointF(left, 0));

    }
}

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