帶2參數的RDLC報告（存儲過程）

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; 
    }

此代碼在RDLC報告中未顯示任何內容。如果我打開dataset1.xsd，並給SP提供相同的參數，我會在網格中獲取值。但是我無法在RDLC中獲得價值。帶2參數的RDLC報告（存儲過程）

來源

2017-10-19 Imran Mani

爲什麼呢？你給報表一個空表，然後_then_調用將數據導入到_another_表中的方法。 – DonBoitnott

你能幫我一下代碼嗎？ –

你的button1_Click應該是這樣的：

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，從數據表中返回GetSPResult應加入到報告不是一個新創建的空白表中yourt代碼。

來源

2017-10-24 14:53:54 Andris

帶2參數的RDLC報告（存儲過程）

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