Question

I am storing picture name only in database, actual picture gets stored in project directory 'SiteImages'.

Now I want to display the image in RDLC report but not getting displayed. CODE:

public void Fill_AuditsReport()
{
    ReportViewer1.AsyncRendering = false;
    ReportViewer1.SizeToReportContent = true;
    ReportViewer1.ZoomMode = ZoomMode.FullPage;
    this.ReportViewer1.Reset();

    DataTable dt = new DataTable();
    PersonalInfo.ManagePersonalInfo MngPersonalInfo = new PersonalInfo.ManagePersonalInfo();

    dt = MngPersonalInfo.ReportSelectPersonalInfo();

    ReportViewer1.ProcessingMode = ProcessingMode.Local;
    ReportViewer1.LocalReport.ReportPath = Server.MapPath("~/DataManagementReports/Report.rdlc");
    ReportDataSource rpds = new ReportDataSource("DataSetPersonalInfo", dt);
    ReportViewer1.LocalReport.DataSources.Clear();
    ReportViewer1.LocalReport.DataSources.Add(rpds);
    ReportViewer1.Visible = true;
}

the name of the field in database is PersonalInfoEmployeePicture.

Answer 1

将以下代码添加到您的项目中：

ReportViewer1.LocalReport.EnableExternalImages = true;
string FilePath = @"file:\" + Application.StartupPath + "\\" + "SiteImages\\"; //Application.StartupPath is for WinForms, you should try AppDomain.CurrentDomain.BaseDirectory  for .net
ReportParameter[] param = new ReportParameter[1];
param[0] = new ReportParameter("ImgPath", FilePath);
ReportViewer1.LocalReport.SetParameters(param);

然后在报表设计器中，确保Image项在External上设置了图像源属性，并且您具有正确名称的参数（ImgPath）。然后只需定义一个指向右图像的表达式。（这将取决于您在数据库中存储图像名称的方式，我们没有扩展名，我假设您添加了扩展名）

= Parameters!ImgPath.Value + Fields!PersonalInfoEmployeePicture.Value

How to display image in RDLC report from when only image name saved in database?

1 个答案: