How to set imagesource in reportviwer image in wpf dynamically

Question

Hi,
I used reportviewer in my wpf application for the print report . I used Image in reportviewer. If I give static image to imagesource that shows in print report. Dynamically i give a path
in parameter for image but the image is not viewed. I given my code below. Please correct my code if i done a mistake. 
this.reportViewer.LocalReport.EnableExternalImages = true;
string imagePath = "";
foreach(DataRow dr in dt.Rows)
imagePath = "E:\\image\\" + dr["image"].ToString();
ReportParameter param = new ReportParameter("param", imagePath);
reportViewer.LocalReport.SetParameters(param); reportViewer.RefreshReport();

Answer 1

Hi Divya Kaliannan,
Local file path for embedded image in LocalReport needs append "file:" prefix.
using System;
using System.Windows;
using Microsoft.Reporting.WinForms;
using System.Data;
namespace WpfApplication1
public partial class MainWindow : Window
public MainWindow()
InitializeComponent();
protected override void OnInitialized(EventArgs e)
base.OnInitialized(e);
System.Data.DataTable dt = new DataTable();
dt.Columns.Add("image", typeof(string));
dt.Columns.Add("imagePath", typeof(string), @"'file:E:\image\'+[image]");
for (int i = 1; i <= 1; i++)
DataRow dr = dt.NewRow();
dr["image"] = string.Format("{0}.png", i);
dt.Rows.Add(dr);
this.reportViewer.LocalReport.ReportPath = "Report1.rdlc";
this.reportViewer.LocalReport.EnableExternalImages = true;
string imagePath = "";
foreach (DataRow dr in dt.Rows)
imagePath = "file:E:\\image\\" + dr["image"].ToString(); //last?
ReportParameter param = new ReportParameter("param", imagePath);
reportViewer.LocalReport.SetParameters(param);
reportViewer.LocalReport.DataSources.Add(new ReportDataSource("table1",dt));
reportViewer.RefreshReport();
Or formula of embedded image in report designer
="file:" + Parameters!param.Value
個別に明示されていない限りgekkaがフォーラムに投稿したコードにはフォーラム使用条件に基づき「MICROSOFT LIMITED PUBLIC LICENSE」が適用されます。(かなり自由に使ってOK!)