Question

我已在Visual Studio 2010中使用ASP.NET C＃将文本转换为Image（.png）。但是提交后创建的图像无法在浏览器中显示并显示消息

无法显示图像“http：// localhost：49670 / WebSite1 / Default.aspx”，因为它包含错误。

在调试期间，没有错误或警告或类似的东西。我该如何解决这个问题？

Answer 1

试试这个......

private Bitmap CreateBitmapImage(string sImageText)
        {
            Bitmap objBmpImage = new Bitmap(1, 1);

            int intWidth = 0;
           int intHeight = 0;

            // Create the Font object for the image text drawing.
            Font objFont = new Font("Arial", 20, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Pixel);

           // Create a graphics object to measure the text's width and height.
           Graphics objGraphics = Graphics.FromImage(objBmpImage);

           // This is where the bitmap size is determined.
           intWidth = (int)objGraphics.MeasureString(sImageText, objFont).Width;
           intHeight = (int)objGraphics.MeasureString(sImageText, objFont).Height;

           // Create the bmpImage again with the correct size for the text and font.
           objBmpImage = new Bitmap(objBmpImage, new Size(intWidth, intHeight));

           // Add the colors to the new bitmap.
           objGraphics = Graphics.FromImage(objBmpImage);

           // Set Background color
           objGraphics.Clear(Color.White);
           objGraphics.SmoothingMode = SmoothingMode.AntiAlias;
           objGraphics.TextRenderingHint = TextRenderingHint.AntiAlias;
           objGraphics.DrawString(sImageText, objFont, new SolidBrush(Color.FromArgb(102, 102, 102)), 0, 0);
           objGraphics.Flush();

           return (objBmpImage);
       }

Answer 2

查看Url，您可能会将图像与HTML内容混合在一起... 使用ASHX是渲染图像的更好选择 - 请查看http://aspalliance.com/1322_Displaying_Images_in_ASPNET_Using_HttpHandlers.all

从文本创建的图像无法显示？

2 个答案: