我的 devexpress 代码中不断出现此错误。这是我输入的代码：
using System;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
using System.Collections;
using System.ComponentModel;
using DevExpress.XtraReports.UI;
using System.Drawing.Printing;
namespace DD
{
public partial class MasterReport : DevExpress.XtraReports.UI.XtraReport
{
//detailReport.catName.Value = ((DataRowView)e.Brick.Value).Row["EcoYear"].ToString();
public MasterReport()
{
InitializeComponent();
}
private void xrLabel1_BeforePrint(object sender, PrintEventArgs e)
{
// XRLabel l = sender as XRLabel;
// l.Tag = GetCurrentRow();
((XRLabel)sender).Tag = GetCurrentRow();
}
private void xrLabel1_PreviewClick(object sender, PreviewMouseEventArgs e)
{
DetailReport detailReport = new DetailReport();
detailReport.CaID.Value = (int)((DataRowView)e.Brick.Value).Row["CaseID"];
detailReport.EYear.Value = (int)((DataRowView)e.Brick.Value).Row["EcoYear"];
detailReport.ShowPreviewDialog();
}
private void xrLabel1_PreviewMouseMove(object sender, PreviewMouseEventArgs e)
{
Cursor.Current = Cursors.Hand;
}
private void xrPictureBox1_BeforePrint(object sender, PrintEventArgs e)
{
((XRLabel)sender).Tag = GetCurrentRow();
}
private void xrPictureBox1_PreviewClick(object sender, PreviewMouseEventArgs e)
{
PW pw = new PW();
PW.CaID.Value = (int)((DataRowView)e.Brick.Value).Row["CaseCaseID"];
PW.ShowPreviewDialog();
}
private void xrPictureBox1_PreviewMouseMove(object sender, PreviewMouseEventArgs e)
{
Cursor.Current = Cursors.Hand;
}
}
}
PW.CaID.Value 和 PW.ShowPreviewDialog()；是给我这个错误的行。也许我这样做是错误的。我想要做的是单击主报告上的图标（xrPictureBox1）并让它显示子报告（PW）。我在上面的代码中为另一个子报表（detailreport）做了这个。预先感谢您的帮助。