错误：（object）是一个''字段''但是像''type''一样使用（crystalreport和C＃） [英] Error: (object) is a ''field'' but is used like a ''type'' ( crystalreport and C# )

问题描述

我想根据txtInvoiceNo中的发票编号在报告中显示发票详细信息，但我在行中的crystalReportViewer1中面临错误// crystalReportViewer1 r = new crystalReportViewer1（）; //

I want to show the invoice details in the report i have made, as per the invoice number in the txtInvoiceNo, but i am facing an error under "crystalReportViewer1 in the line //crystalReportViewer1 r = new crystalReportViewer1(); //

using System;
using System.IO;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.Odbc;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;
using CrystalDecisions.ReportSource;
using System.Data.OleDb;
using System.Collections;
using System.Web;


namespace WStoreSystem
{
    public partial class Print : Form
    {
        public Print()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
        }

        private void find_Click(object sender, EventArgs e)
        {
            if (txtInvoiceNo.Text == "")
            {
                MessageBox.Show("Please insert the invoice number!");
                txtInvoiceNo.Focus();
            }
            else
            {


                OleDbConnection con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|StoreSys.mdb");
                OleDbDataAdapter ad = new OleDbDataAdapter("select * from InvoiceDetails where InvoiceID=@InvoiceID", con);
                ad.SelectCommand.Parameters.Add("@InvoiceID", OleDbType.VarChar);
                ad.SelectCommand.Parameters["@InvoiceID"].Value = txtInvoiceNo.Text;

                DataSet ds = new DataSet();
                ad.Fill(ds, "InvoiceDetails");
                crystalReportViewer1 r = new crystalReportViewer1();// the error is here 
 
                r.SetDataSource(ds.Tables["InvoiceDetails"]);
                crystalReportViewer1.ReportSource = r;
               

            }
        
        }
    }

推荐答案

好吧，你没告诉我们错误是什么，所以我们可以猜测（提示 - 修改你的问题）



你有安装Crystal Reports / Viewer吗？在您的开发机器上？



顺便说一句，这是 http://csharp.net-informations.com/crystal-reports/csharp-crystal-reports-stepbystep.htm [ ^ ]似乎是使用Crystal的开始 - 你拖了一个实例Crsytal Report Viewer控件到您的表单上？

Well, you don't tell us what the error is, so we can but guess (hint - modify your question)

Do you have Crystal Reports/Viewer installed on your Dev machine ?

btw, this http://csharp.net-informations.com/crystal-reports/csharp-crystal-reports-stepbystep.htm[^] seems to be a start on using Crystal - have you dragged an instance of the Crsytal Report Viewer control onto your form ?

crystalReport1 r = new crystalReport1（）;

crystalReport1 r = new crystalReport1();

这篇关于错误：（object）是一个''字段''但是像''type''一样使用（crystalreport和C＃）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！