图像未显示在Crystal Report上 [英] Image not showing on Crystal Report

问题描述

大家好，

我正在使用以下代码在Web项目中使用VS 2008的嵌入式Crystal报表在CrystalReport上显示图像.

在设计时，我使用了与运行时数据表"newData"具有相同架构的数据集和数据表.

Hi all,

I am using following code to display an image on a CrystalReport in my web project using embedded crystal reports of VS 2008.

At design time I used a DataSet and Data table with the same schema as the run-time DataTable ''newData''.

customerReport = new ReportDocument();
string reportPath = Server.MapPath("CrystalReport.rpt");
customerReport.Load(reportPath);

            DataTable newData = new DataTable();
            newData.Columns.Add("SNo", System.Type.GetType("System.String"));
            newData.Columns.Add("Name", System.Type.GetType("System.String"));
            newData.Columns.Add("Tele", System.Type.GetType("System.String"));
            newData.Columns.Add("Image", System.Type.GetType("System.Byte[]"));
            DataRow dr = newData.NewRow();
            dr[0] = "Trying once";
            dr[1] = "Trying Again";
            dr[2] = "Still No Clue";
            string picPath = Server.MapPath("EmployeeImage/SomeImage.jpg");
                FileStream fs = new FileStream(picPath, FileMode.Open, FileAccess.Read);
                BinaryReader br = new BinaryReader(fs);
                byte[] imgByte = new byte[fs.Length + 1];
                imgByte = br.ReadBytes(Convert.ToInt32(fs.Length) );
                dr[3] = imgByte;
                newData.Rows.Add(dr);
                br = null;
                fs.Close();
                fs = null;
                customerReport.Database.Tables[0].SetDataSource(newData );
                crystalReportViewer.ReportSource = customerReport;

但是，CrystalReport中没有显示图像.我确认数据表中的图像字段充满了二进制数据.

谁能帮我?

在此先感谢.

此致

GeoNav

However, no image is displayed in the CrystalReport. I confirmed that the image field in the datatable is filled with the binary data.

Can anyone help me?

Thanks in Advance.

Regards,

GeoNav

推荐答案

尝试:
1. byte[] imgByte = new byte[fs.Length];
2. customerReport.SetDataSource(newData);

请参阅以显示图像，以查看以下内容:
如何使用Visual Studio 2005在Crystal Reports中动态加载图像 [ Crystal Reports:如何在Crystal Report中显示图像 [ Crystal Reports中的图像 [

Try:
1. byte[] imgByte = new byte[fs.Length];
2. customerReport.SetDataSource(newData);

Refer, to display images, have a look at these:
How to dynamically load images in Crystal Reports using Visual Studio 2005[^]
Crystal Reports: How to Display Images in a Crystal Report[^]
Image in Crystal Reports[^]

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