把文本框的值转换成Image

把文本框的值转换成一个Image,很一个很简单的,主要用到的.NET类库是:

System.Drawing;

很简单的,先看代码吧:

protected void btnConvert_Click(object sender, EventArgs e)
    {
        System.Drawing.Bitmap b = new System.Drawing.Bitmap(150, 80,   System.Drawing.Imaging.PixelFormat.Format32bppArgb);
        System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(b);

        string a = txtValue.Text.ToString();

        g.Clear(System.Drawing.Color.Blue);

        g.DrawString(a, new Font("Arial", 18, FontStyle.Bold), new SolidBrush(Color.BurlyWood), new PointF(05.0f, 1.50f));
        Response.ContentType="image/jpeg";
        b.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
    }

就是把文本框中的值画成一个IMAGE最后在页面上显示OK

效果:

把文本框的值转换成Image