带2参数的RDLC报告（存储过程）

private void Form1_Load(object sender, EventArgs e) 
    { 
     // TODO: This line of code loads data into the 'DataSet1.sp_GetRent1' table. You can move, or remove it, as needed. 
     this.sp_GetRent1TableAdapter.Fill(this.DataSet1.sp_GetRent1, "@RentNo1", "@AppPath"); 
     //this.GetSPResult(); 
     this.reportViewer1.RefreshReport(); 
    } 

private void button1_Click(object sender, EventArgs e) 
    { 
     DataTable dt = new DataTable(); 
     reportViewer1.Visible = true; 
     reportViewer1.LocalReport.ReportPath = "Report1.rdlc"; 
     reportViewer1.LocalReport.DataSources.Clear(); 
     reportViewer1.LocalReport.DataSources.Add(new Microsoft.Reporting.WinForms.ReportDataSource("DataSet1",dt)); 
     GetSPResult(); 
    } 

private DataTable GetSPResult() 
    { 
     DataTable ResultsTable = new DataTable(); 
     SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=RentACar1;Integrated Security=True");// ProviderName = "System.Data.SqlClient"); 
     try 
     { 
      SqlCommand cmd = new SqlCommand("sp_GetRent1",conn); 
      cmd.CommandType = CommandType.StoredProcedure; 
      cmd.Parameters.AddWithValue("@RentNo1", "9905-10-2017"); 
      cmd.Parameters.AddWithValue("@AppPath", @"E:\Rent A Car\RentACar1\RentACar\bin\Debug"); 
      conn.Open(); 
      //cmd.ExecuteNonQuery(); 
      SqlDataAdapter adaptor = new SqlDataAdapter(cmd); 
      adaptor.SelectCommand = cmd; 
      adaptor.Fill(ResultsTable); 
     } 
     catch(Exception ex) 
     { 
      MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 
     } 
     return ResultsTable; 
    }

此代码在RDLC报告中未显示任何内容。如果我打开dataset1.xsd，并给SP提供相同的参数，我会在网格中获取值。但是我无法在RDLC中获得价值。带2参数的RDLC报告（存储过程）

来源

2017-10-19 Imran Mani

为什么呢？你给报表一个空表，然后_then_调用将数据导入到_another_表中的方法。 – DonBoitnott

你能帮我一下代码吗？ –

你的button1_Click应该是这样的：

private void button1_Click(object sender, EventArgs e) 
{ 
    DataTable dt = GetSPResult(); 
    reportViewer1.Visible = true; 
    reportViewer1.LocalReport.ReportPath = "Report1.rdlc"; 
    reportViewer1.LocalReport.DataSources.Clear(); 
    reportViewer1.LocalReport.DataSources.Add(new 
    Microsoft.Reporting.WinForms.ReportDataSource("DataSet1", dt)); 
}

注意的是，从数据表中返回GetSPResult应加入到报告不是一个新创建的空白表中yourt代码。

来源

2017-10-24 14:53:54 Andris

带2参数的RDLC报告（存储过程）

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