这是我的aspx页面..................
<asp:Panel ID="UpdatePanel1" runat="server" Visible="false" >
<rsweb:ReportViewer ID="ReportingForPrintingReportViewer" runat="server"
Width="100%" Height="100%" Font-Names="Verdana" Font-Size="8pt"
InteractiveDeviceInfos="(Collection)" WaitMessageFont-Names="Verdana"
WaitMessageFont-Size="14pt">
<LocalReport ReportPath="Report.rdlc">
<DataSources>
<rsweb:ReportDataSource DataSourceId="ObjectDataSource2" Name="DataSet1" />
</DataSources>
</LocalReport>
</rsweb:ReportViewer>
<asp:ObjectDataSource ID="ObjectDataSource2" runat="server"
SelectMethod="GetData" TypeName="DataSet1TableAdapters.tblTotalFeeTableAdapter">
</asp:ObjectDataSource>
</asp:Panel>
<asp:Button ID="btnSubmit" runat="server" Text="Submit" Width="150px"
onclick="btnSubmit_Click" />
<asp:Button ID="btnReset" runat="server" Text="Reset" Width="150px" />
<asp:Button ID="btnCreateBill" runat="server" Text="CreateBill" Width="150px"
onclick="btnCreateBill_Click"/>
<asp:PopupControlExtender ID="btnCreateBill_PopupControlExtender" OffsetX="-1100" OffsetY="115"
runat="server" DynamicServicePath="" Enabled="True" ExtenderControlID=""
TargetControlID="btnCreateBill" PopupControlID="UpdatePanel1">
</asp:PopupControlExtender>
这是我的cs页面
protected void btnCreateBill_Click(object sender, EventArgs e)
{
DisplayReport();
UpdatePanel1.Visible = true;
}
private DataTable TotalInfoData()
{
try
{
//DataClassesDataContext db = null;
//db = new DataClassesDataContext();
//var s = from p in db.tblTotalFeess
// where p.Class == ClassDropDownList.SelectedItem.Value && p.StudentID == Convert.ToInt32(StudentNameDropDownList.SelectedValue)
// select p;
//DataTable dt = new DataTable();
//SQLHelper sqhlpr = new SQLHelper();
//sqhlpr.SqlText = "select * from tblTotalFee where Class='" + ClassDropDownList.SelectedItem.Value + "'" + "and StudentID='" + StudentNameDropDownList.SelectedValue + "'";
//DataTable dt = sqhlpr.getDataTable(false);
//return dt;
try
{
// Open Sql Connection
SqlConnection SqlCon = new SqlConnection(@"Data Source=PRATIKPC;Initial Catalog=dbbilling2.0;Integrated Security=True");
SqlCon.Open();
// Create a Command
SqlCommand SqlComm = new SqlCommand();
SqlComm.Connection = SqlCon;
SqlComm.CommandType = CommandType.Text;
SqlComm.CommandText = "select * from tblTotalFee where Class='" + ClassDropDownList.SelectedItem.Value + "'" + "and StudentID='" + StudentNameDropDownList.SelectedValue + "'";
// Create instance of Northwind DataSetXSD
DataSet1.tblTotalFeeDataTable dtbl = new DataSet1.tblTotalFeeDataTable();
// Set a Data Commands
SqlDataAdapter SqlDa = new SqlDataAdapter(SqlComm);
SqlDa.Fill(dtbl); // Fill Data in NorthwindDataSet Object.
return dtbl;
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
private void DisplayReport()
{
try
{
// Clear the Data Source
ReportingForPrintingReportViewer.LocalReport.DataSources.Clear();
// Set a DataSource to the report
// First Parameter - Report DataSet Name
// Second Parameter - DataSource Object i.e DataTable
ReportingForPrintingReportViewer.LocalReport.DataSources.Add(new ReportDataSource("DataSet1", TotalInfoData()));
// OR Set Report Path
ReportingForPrintingReportViewer.LocalReport.ReportPath = HttpContext.Current.Server.MapPath("~/Report.rdlc");
// Refresh and Display Report
ReportingForPrintingReportViewer.LocalReport.Refresh();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
我必须两次点击btnCreateBill才能生成报告查看器。为什么？如何只需单击一下按钮即可生成报告查看器？
答案 0 :(得分：0)
您是否调用了Get Data方法（您的数据源加载方法 ）在里面！ispostback？
看看这个
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
GetData()// Your Data Source load method
}
}
答案 1 :(得分：0)
这是Aspx文件........................
<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true"
CodeBehind="AccountReportParameter.aspx.cs" Inherits="TexERP.ReportSSRS.AccountReportParameter" %>
<%@ Register Assembly="Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
Namespace="Microsoft.Reporting.WebForms" TagPrefix="rsweb" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <asp:UpdatePanel ID="updpnlLiteral" runat="server">
<ContentTemplate>
<asp:Panel ID="pnlAddRecord" runat="server" BackColor="White" Height="150px" Width="600px"
Visible="true">
<td align="right" colspan="4">
<asp:Button ID="btnSubmit" runat="server" Text="Show Report" OnClick="btnSubmit_Click"
ValidationGroup="FinalSave" />
<asp:Button ID="btnCancel" runat="server" Text="Reset" UseSubmitBehavior="false"
OnClick="btnCancel_Click" />
</asp:Panel>
<rsweb:ReportViewer ID="rptvwMain" runat="server" Width="907px" Height="850px" Font-Names="Verdana"
Font-Size="8pt" ProcessingMode="Remote" ShowCredentialPrompts="false" InteractiveDeviceInfos="(Collection)"
ShowZoomControl="true">
</rsweb:ReportViewer>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Content>
这是cs文件...........
using System;
using System.Collections.Generic;
using System.Data;
using System.Net;
using BusinessAccessLevel;
using BusinessAccessLevel.Masters;
using Microsoft.Reporting.WebForms;
namespace TexERP.ReportCrystal
{
public partial class AccountReportParameter : System.Web.UI.Page
{
AccountReportBAL objAccountReportBAL;
clsSession objSession;
string pstrType;
protected void Page_Load(object sender, EventArgs e)
{
objAccountReportBAL = new AccountReportBAL();
objSession = new clsSession();
pstrType = Request.QueryString["Type"];
if (Session["objSession"] != null)
{
objSession = Session["objSession"] as clsSession;
}
objAccountReportBAL = new AccountReportBAL();
if (!IsPostBack)
{
RadDtpFromDate.SelectedDate = Convert.ToDateTime(objSession.FyFromDate);
RadDtpToDate.SelectedDate = Convert.ToDateTime(objSession.FyToDate);
}
rptvwMain.LocalReport.Refresh();
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
string pstrType;
pstrType = Request.QueryString["Type"];
LoadReport();
}
public class CustomReportCredentials : Microsoft.Reporting.WebForms.IReportServerCredentials
{
// local variable for network credential.
private string _UserName;
private string _PassWord;
private string _DomainName;
public CustomReportCredentials(string UserName, string PassWord, string DomainName)
{
_UserName = UserName;
_PassWord = PassWord;
_DomainName = DomainName;
}
public System.Security.Principal.WindowsIdentity ImpersonationUser
{
get
{
return null; // not use ImpersonationUser
}
}
public System.Net.ICredentials NetworkCredentials
{
get
{
// use NetworkCredentials
return new NetworkCredential(_UserName, _PassWord, _DomainName);
}
}
public bool GetFormsCredentials(out Cookie authCookie, out string user, out string password, out string authority)
{
// not use FormsCredentials unless you have implements a custom autentication.
authCookie = null;
user = password = authority = null;
return false;
}
}
void LoadReport()
{
string strCompanyName = objSession.SelCompanyName;
string strHeading = "";
string strBranchName = objSession.SelBranchName;
rptvwMain.ProcessingMode = ProcessingMode.Remote;
rptvwMain.ServerReport.ReportServerCredentials = new CustomReportCredentials(AppConfig.ReportServerUserName, AppConfig.ReportServerPassword, AppConfig.ReportServerDomain);
string strReportServerUrl = AppConfig.ReportServerUrl + AppConfig.ReportServerFolder;
rptvwMain.ServerReport.ReportServerUrl = new Uri(strReportServerUrl);
List<ReportParameter> parameters = new List<ReportParameter>();
if(pstrType == "GL")
{
strHeading = "General Ledger";
rptvwMain.ServerReport.ReportPath = "/Account/AccountGeneralLedger";
}
parameters.Add(new ReportParameter("FyId", Convert.ToInt16(objSession.FyId).ToString()));
parameters.Add(new ReportParameter("AccountGroupId", cmbAccountGroup.SelectedValue));
parameters.Add(new ReportParameter("LedgerId", cmbLedgerId.SelectedValue));
parameters.Add(new ReportParameter("BranchId", Convert.ToInt64(objSession.BranchId).ToString()));
parameters.Add(new ReportParameter("StDate", Convert.ToDateTime(RadDtpFromDate.SelectedDate).ToString()));
parameters.Add(new ReportParameter("EnDate", Convert.ToDateTime(RadDtpToDate.SelectedDate).ToString()));
parameters.Add(new ReportParameter("CompanyName", strCompanyName.ToString()));
parameters.Add(new ReportParameter("BranchName", strBranchName.ToString()));
parameters.Add(new ReportParameter("Heading",strHeading.ToString()));
rptvwMain.ServerReport.SetParameters(parameters);
rptvwMain.ServerReport.SetDataSourceCredentials(new[] { new DataSourceCredentials() { Name =AppConfig.ReportServerDataSource , UserId = AppConfig.ReportServerDSUserName, Password = AppConfig.ReportServerDSPassword } });
rptvwMain.ShowZoomControl = true;
rptvwMain.ServerReport.Refresh();
}
}
}
尝试此代码作为参考代码................