如何为水晶报表设置数据库登录信息(连接信息)?

How to set database login infos (connection info) for crystal report?(如何为水晶报表设置数据库登录信息(连接信息)?)

问题描述

我有一个应用程序(不是我的编码)，它有很多水晶报告.我面临的问题是，每次我打开水晶报告时，它都会询问登录用户名和密码.

I have an application (NOT MY Coding) which have a lot of crystal reports. the problem I'm facing is that every time i open a crystal report it asks for login username and password.

经过一番搜索后，我发现我必须在运行时为报告设置连接信息，我找到了一些解决方案，但是当我查看应用程序的代码时，并没有像我预期的那样找到它.

after a little search i found that i have to set the connectioninfo for the report at run time and i found some solution but when i looked at the code of the application i didn't find it as i was expecting.

frmviewrpt(具有水晶报表查看器的表单)有这样的东西:

the frmviewrpt (the form that has the crystal report viewer) have some thing like this:

RptProBalance rptProductBalance = new RptProBalance();
rptProductBalance.RecordSelectionFormula = getBalanceRptSelection();
rptProductBalance.Refresh();
allReportViewer.ReportSource = rptProductBalance; 

RptProBalance()(从 RptProBalance.rpt 文件扩展而来的 cs 文件):

the RptProBalance() (the cs file that is extended from the RptProBalance.rpt file):

//------------------------------------------------------------------------------
 // <auto-generated>
 //     This code was generated by a tool.
 //     Runtime Version:2.0.50727.42
 //
 //     Changes to this file may cause incorrect behavior and will be lost if
 //     the code is regenerated.
 // </auto-generated>
 //------------------------------------------------------------------------------

 namespace minfatora {
using System;
using System.ComponentModel;
using CrystalDecisions.Shared;
using CrystalDecisions.ReportSource;
using CrystalDecisions.CrystalReports.Engine;


public class RptProBalance : ReportClass {

    public RptProBalance() {
    }

    public override string ResourceName {
        get {
            return "RptProBalance.rpt";
        }
        set {
            // Do nothing
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public CrystalDecisions.CrystalReports.Engine.Section ReportHeaderSection1 {
        get {
            return this.ReportDefinition.Sections[0];
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public CrystalDecisions.CrystalReports.Engine.Section PageHeaderSection1 {
        get {
            return this.ReportDefinition.Sections[1];
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public CrystalDecisions.CrystalReports.Engine.Section GroupHeaderSection1 {
        get {
            return this.ReportDefinition.Sections[2];
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public CrystalDecisions.CrystalReports.Engine.Section DetailSection1 {
        get {
            return this.ReportDefinition.Sections[3];
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public CrystalDecisions.CrystalReports.Engine.Section GroupFooterSection1 {
        get {
            return this.ReportDefinition.Sections[4];
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public CrystalDecisions.CrystalReports.Engine.Section ReportFooterSection1 {
        get {
            return this.ReportDefinition.Sections[5];
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public CrystalDecisions.CrystalReports.Engine.Section PageFooterSection1 {
        get {
            return this.ReportDefinition.Sections[6];
        }
    }
}

[System.Drawing.ToolboxBitmapAttribute(typeof(CrystalDecisions.Shared.ExportOptions), "report.bmp")]
public class CachedRptProBalance : Component, ICachedReport {

    public CachedRptProBalance() {
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public virtual bool IsCacheable {
        get {
            return true;
        }
        set {
            // 
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public virtual bool ShareDBLogonInfo {
        get {
            return false;
        }
        set {
            // 
        }
    }

    [Browsable(false)]
    [DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
    public virtual System.TimeSpan CacheTimeOut {
        get {
            return CachedReportConstants.DEFAULT_TIMEOUT;
        }
        set {
            // 
        }
    }

    public virtual CrystalDecisions.CrystalReports.Engine.ReportDocument CreateReport()      {
        RptProBalance rpt = new RptProBalance();
        rpt.Site = this.Site;
        return rpt;
    }

    public virtual string GetCustomizedCacheKey(RequestContext request) {
        String key = null;
        // // The following is the code used to generate the default
        // // cache key for caching report jobs in the ASP.NET Cache.
        // // Feel free to modify this code to suit your needs.
        // // Returning key == null causes the default cache key to
        // // be generated.
        // 
        // key = RequestContext.BuildCompleteCacheKey(
        //     request,
        //     null,       // sReportFilename
        //     this.GetType(),
        //     this.ShareDBLogonInfo );
        return key;
    }
}
 }

我不知道我应该在哪里建立连接信息并将其传递给报告.

I have no clue where exactly I'm supposed to make the connection info and pass it to the report.

推荐答案

ConnectionInfo crconnectioninfo = new ConnectionInfo();
    ReportDocument cryrpt = new ReportDocument();
    TableLogOnInfos crtablelogoninfos = new TableLogOnInfos();
    TableLogOnInfo crtablelogoninfo = new TableLogOnInfo();

    Tables CrTables;

    crconnectioninfo.ServerName = "localhost";
    crconnectioninfo.DatabaseName = "dbclients";
    crconnectioninfo.UserID = "ssssssss";
    crconnectioninfo.Password = "xxxxxxx";  


  cryrpt.Load(Application.StartupPath + "\rpts\" + dealerInfo.ResourceName);

        CrTables = cryrpt.Database.Tables;

        foreach (CrystalDecisions.CrystalReports.Engine.Table CrTable in CrTables)
        {
            crtablelogoninfo = CrTable.LogOnInfo;
            crtablelogoninfo.ConnectionInfo = crconnectioninfo;
            CrTable.ApplyLogOnInfo(crtablelogoninfo);
        }


        cryrpt.RecordSelectionFormula = getCustInfoRptSelection();
        cryrpt.Refresh();

        allReportViewer.ReportSource = cryrpt;

这篇关于如何为水晶报表设置数据库登录信息(连接信息)?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编程学习网！