.net - reports - no se encontraron uno o mas campos en el conjunto de resultados

Pasar parámetros al informe de Crystal desde webforms

Question

Tengo un informe y quiero mostrarlo en un formulario web. Los informes sin parámetros funcionan bien y bien. Los informes con parámetros me generan dolor de cabeza. este es el código que he escrito en el método BindReport, que se llama al evento de carga de página del formulario.

 ReportDocument rpt = new ReportDocument();
rpt.Load(Server.MapPath("rptPositionwiseMontwiseActualSale.rpt"));
rpt.FileName = Server.MapPath("rptPositionwiseMontwiseActualSale.rpt");
rpt.SetParameterValue("CompanyName", "Cirin Pharmaceutical Pvt. Limited".ToString());
rpt.SetParameterValue("ReportTitle", "PositionWise MonthWise Sales".ToString());
rpt.SetParameterValue("parameters", "Year:2011".ToString());
//CrystalReportViewer1.ParameterFieldInfo = paramFields;
DataSet ds = getReportData();
rpt.SetDataSource(ds.Tables[0]);
CrystalReportViewer1.ReportSource = rpt;
CrystalReportViewer1.ReuseParameterValuesOnRefresh = true;
//CrystalReportViewer1.RefreshReport();

He intentado una variedad de cosas, como la asignación de ParameterFieldInfo para el control de reporteros, pero me muestra una solicitud de carga de página que solicita los valores de los parámetros del informe. estoy usando .NET 4.0
EDITAR usando el modelo push para informes de cristal. ¿Cambia la forma en que podemos pasar los parámetros para informar desde asp.net
Gracias

Answer 1

Al configurar los valores de parámetro en el tiempo de ejecución para ASP.NET creo que debe hacer un poco más de trabajo que simplemente llamado SetParameterValue

string rptTitle = "This is Report Title";
rpt.SetParameterValue("ReportTitle", rptTitle);
ParameterDiscreteValue val = new ParameterDiscreteValue();
val.Value = rptTitle;
ParameterValues paramVals = new ParameterValues();
paramVals.Add(val);
rpt.ParameterFields["ReportTitle"].CurrentValues = paramVals;
rpt.DataDefinition.ParameterFields[0].ApplyCurrentValues(paramVals);

Esto es probablemente un poco exagerado, pero en realidad funciona, bueno para mí de todos modos. Debe asegurarse de que los nombres de los parámetros coincidan exactamente.

Answer 2

Use así.

 SqlConnection Con = new SqlConnection(ConfigurationManager.ConnectionStrings["MainDB"].ConnectionString);
SqlCommand cmd = new SqlCommand();
#region Help Method
private void ProjectDataBind()
{
DataSet ds = new DataSet();
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
try
{
Con.Open();
cmd.CommandText = "sp_Project_SelectAll";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Connection = Con;
adapter.Fill(ds, "tbl_Project");
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
cmd.Dispose();
if (Con.State != ConnectionState.Closed)
Con.Close();
}
//DataTable dt = controller.SelectAll();
cboFromProject.DataTextField = "Project";
cboFromProject.DataValueField = "ProjectID";
cboFromProject.DataSource = ds.Tables[0];
cboFromProject.DataBind();
}
private void ToProjectDataBind()
{
DataSet ds = new DataSet();
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
try
{
Con.Open();
cmd.CommandText = "sp_Project_SelectAll";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Connection = Con;
adapter.Fill(ds, "tbl_Project");
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
cmd.Dispose();
if (Con.State != ConnectionState.Closed)
Con.Close();
}
//DataTable dtable = controller.SelectAll();
cboToProject.DataTextField = "Project";
cboToProject.DataValueField = "ProjectID";
cboToProject.DataSource = ds.Tables[0];//dtable;
cboToProject.DataBind();
}
public DataSet getFromTOProjects(int fproject, int toproject)
{
//string sqlCon = ConfigurationManager.AppSettings["MainDB"].ToString();
DataSet ds = null;
SqlDataAdapter adapter;
try
{
Con.Open();
cmd.CommandText = "sp_projectReport_ByProject";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@fproject", fproject));
cmd.Parameters.Add(new SqlParameter("@toproject", toproject));
cmd.Connection = Con;
ds = new DataSet();
adapter = new SqlDataAdapter(cmd);
adapter.Fill(ds, "tbl_Project");
//adapter.Fill(ds);
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
cmd.Dispose();
if (Con.State != ConnectionState.Closed)
Con.Close();
}
return ds;
}
#endregion
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ProjectDataBind();
ToProjectDataBind();
}
if (IsPostBack)
{
try
{
CrystalReportViewer2.ReportSource = (ReportDocument)Session["Report"];
//CrystalReportViewer2.RefreshReport(); write this code,will prompt
//CrystalReportViewer2.DataBind();
}
catch (Exception ex)
{
// throw;
}
}
}
protected void btnPreview_Click(object sender, EventArgs e)
{
ReportDocument rptDoc = new ReportDocument();
DataSet ds = new DataSet();
DataTable dtable = new DataTable();
dtable.TableName = "tbl_Project";
ds = getFromTOProjects(Convert.ToInt32(cboFromProject.SelectedValue), Convert.ToInt32(cboToProject.SelectedValue));
dtable = ds.Tables[0];
rptDoc.Load(Server.MapPath("~//Reports//ProjectReportWithPara.rpt"));
rptDoc.SetDataSource(dtable);
rptDoc.SetParameterValue("ReportTitle", "Project Report By Project");
rptDoc.SetParameterValue("FromProject", cboFromProject.SelectedItem.Text);
rptDoc.SetParameterValue("ToProject", cboToProject.SelectedItem.Text);
//string rptTitle = "This is Report Title";
//rpt.SetParameterValue("ReportTitle", rptTitle);
//ParameterDiscreteValue val = new ParameterDiscreteValue();
//val.Value = rptTitle;
//ParameterValues paramVals = new ParameterValues();
//paramVals.Add(val);
//rpt.ParameterFields["ReportTitle"].CurrentValues = paramVals;
//rpt.DataDefinition.ParameterFields[0].ApplyCurrentValues(paramVals);
Session["Report"] = rptDoc;
CrystalReportViewer2.ReportSource = rptDoc;
//CrystalReportViewer2.ReuseParameterValuesOnRefresh = false;
//CrystalReportViewer2.DataBind();
//CrystalReportViewer2.ReportSource = rptDoc.Clone();
// can print and export but prompt already set parameters
//CrystalReportViewer2.RefreshReport();
}

Answer 3

Aquí está el código que estoy usando en un proyecto para ver los informes de cristal (es un control web)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Objects.Controls;
using System.Data.SqlClient;
using Objects.Database;
using System.IO;
using System.Configuration;
using CrystalDecisions.Shared;
using CrystalDecisions.CrystalReports.Engine;
namespace App.WebControls
{
/// <summary>
/// Crystal Report Viewer Control
/// </summary>
public partial class CrystalReportViewer : BaseWebControl
{
//- MEMBER VARIABLES --------------------------------------------------------------------------------------------------------
#region Members
private CrystalDecisions.Shared.ParameterFields m_ParameterFields = new CrystalDecisions.Shared.ParameterFields();
private CrystalDecisions.Web.CrystalReportSource m_CrystalReportSource = new CrystalDecisions.Web.CrystalReportSource();
#endregion Members
//- PROPERTIES --------------------------------------------------------------------------------------------------------------
#region Properties
/// <summary>
/// Gets or Sets the Crystal Report Source
/// </summary>
public CrystalDecisions.Web.CrystalReportSource ReportSource
{
get { return m_CrystalReportSource; }
set { m_CrystalReportSource = value; }
}
/// <summary>
/// Gets the Name of the WAP data source name
/// </summary>
public string WAPDataSourceName
{
get
{
if ( ViewState[ "WAPDataSourceName" ] == null )
{
ViewState[ "WAPDataSourceName" ] = "WAP";
}
return ViewState[ "WAPDataSourceName" ] as string;
}
set
{
ViewState[ "WAPDataSourceName" ] = value;
}
}
/// <summary>
/// Gets the Name of the Sage Datasource Name
/// </summary>
public string SageDataSourceName
{
get
{
if ( ViewState[ "SageDataSourceName" ] == null )
{
ViewState[ "SageDataSourceName" ] = "WAP_Sage";
}
return ViewState[ "SageDataSourceName" ] as string;
}
set
{
ViewState[ "SageDataSourceName" ] = value;
}
}
/// <summary>
/// Gets or Sets the Report Filename
/// </summary>
public string ReportFileName
{
get
{
return ReportSource.Report.FileName;
}
set
{
ReportSource.Report.FileName = value;
}
}
/// <summary>
/// Gets or Sets the Sage Database
/// </summary>
public SageDatabase SageDatabase
{
get
{
if ( ViewState[ "SageDatabase" ] == null )
{
ViewState[ "SageDatabase" ] = new SageDatabase();
}
return ViewState[ "SageDatabase" ] as SageDatabase;
}
set
{
ViewState[ "SageDatabase" ] = value;
}
}
/// <summary>
/// Gets the Current Paramter Fields
/// </summary>
public CrystalDecisions.Shared.ParameterFields ParameterFields
{
get
{
return m_ParameterFields;
}
}
#endregion Properties
//- EVENTS ------------------------------------------------------------------------------------------------------------------
#region Events
/// <summary>
/// Page Load
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load( object sender, EventArgs e )
{
try
{
if ( !this.IsPostBack )
{
//Set up the Report Source
this.SetReportSource();
//Set the Connections
this.ConfigureReports();
//Sets the Parameters
this.SetParameters();
}
}
catch ( Exception )
{
throw;
}
}
#endregion Events
//- METHODS -----------------------------------------------------------------------------------------------------------------
#region Methods
/// <summary>
/// Gets a connection info object based on a SQL connection string
/// </summary>
/// <param name="oSqlConnectionStringBuilder">The connection string builder</param>
/// <param name="ServerName">The server name the connection is for</param>
/// <returns>Connection Info</returns>
private ConnectionInfo GetConnectionInfo( SqlConnectionStringBuilder oSqlConnectionStringBuilder, string ServerName )
{
try
{
ConnectionInfo oConnectionInfo = new ConnectionInfo();
oConnectionInfo.ServerName = ServerName;
oConnectionInfo.DatabaseName = oSqlConnectionStringBuilder.InitialCatalog;
oConnectionInfo.UserID = oSqlConnectionStringBuilder.UserID;
oConnectionInfo.Password = oSqlConnectionStringBuilder.Password;
oConnectionInfo.IntegratedSecurity = oSqlConnectionStringBuilder.IntegratedSecurity;
oConnectionInfo.Type = ConnectionInfoType.SQL;
oConnectionInfo.AllowCustomConnection = true;
return oConnectionInfo;
}
catch
{
throw;
}
}
/// <summary>
/// Sets the DB logon info for the report
/// </summary>
/// <param name="oConnectionInfo">The connection info to set</param>
private void SetDBLogonForReport( ConnectionInfo oConnectionInfo )
{
try
{
TableLogOnInfos oTableLogOnInfos = ReportViewer.LogOnInfo;
foreach ( CrystalDecisions.CrystalReports.Engine.Table oTable in ReportSource.ReportDocument.Database.Tables )
{
if ( oTable.LogOnInfo.ConnectionInfo.ServerName == oConnectionInfo.ServerName )
{
TableLogOnInfo oTableLogOnInfo = oTable.LogOnInfo;
oTableLogOnInfo.ConnectionInfo = oConnectionInfo;
oTable.ApplyLogOnInfo( oTableLogOnInfo );
// oTable.Location = String.Format( "{0}.dbo.{1}", oConnectionInfo.DatabaseName, oTable.Name );
bool b = oTable.TestConnectivity();
if ( !b )
{
}
}
}
}
catch
{
throw;
}
}
/// <summary>
/// Configures the reports
/// </summary>
private void ConfigureReports()
{
try
{
//Get connection infos
ConnectionInfo sageConnectionInfo = this.GetConnectionInfo( new SqlConnectionStringBuilder( this.SageDatabase.ConnectString ), this.SageDataSourceName );
ConnectionInfo wapConnectionInfo = this.GetConnectionInfo( new SqlConnectionStringBuilder( ConfigurationManager.ConnectionStrings[ "DatabaseConnectString" ].ConnectionString ), this.WAPDataSourceName );
//Set db logon for the connection infos
this.SetDBLogonForReport( sageConnectionInfo );
this.SetDBLogonForReport( wapConnectionInfo );
}
catch
{
throw;
}
}
/// <summary>
/// Adds a discrete parameteer value
/// </summary>
/// <param name="ParameterName">The namee of the parameter to set</param>
/// <param name="value">The value of the parameter</param>
public void AddDiscreteValue( string ParameterName, object value )
{
try
{
//Create a new Parameter Field
CrystalDecisions.Shared.ParameterField oParameterField = new CrystalDecisions.Shared.ParameterField();
oParameterField.Name = ParameterName;
//Create a new Discrete Value
CrystalDecisions.Shared.ParameterDiscreteValue oParameterDiscreteValue = new CrystalDecisions.Shared.ParameterDiscreteValue();
oParameterDiscreteValue.Value = value;
//Add the value
oParameterField.CurrentValues.Add( oParameterDiscreteValue );
//Add the parameter field
this.ParameterFields.Add( oParameterField );
}
catch ( Exception )
{
throw;
}
}
/// <summary>
/// Sets up the Report Source
/// </summary>
private void SetReportSource()
{
try
{
//Load the report based on Filename
this.ReportSource.ReportDocument.Load( Server.MapPath( this.ReportFileName ) );
}
catch ( Exception )
{
throw;
}
}
/// <summary>
/// Exports the report to disk
/// </summary>
/// <param name="FileName">The name of the file</param>
public void ExportToDisk( string FileName )
{
try
{
this.ReportSource.ReportDocument.ExportToDisk( CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, FileName );
}
catch ( Exception )
{
throw;
}
}
/// <summary>
/// Exports the Report to Email
/// </summary>
[Obsolete( "Bug in Crystal Reports objects that causes the attachment to be called untitled.txt", true )]
public void ExportToMAPI()
{
try
{
CrystalDecisions.Shared.ExportOptions oExportOptions = new CrystalDecisions.Shared.ExportOptions();
{
CrystalDecisions.Shared.MicrosoftMailDestinationOptions oMicrosoftMailDestinationOptions = new CrystalDecisions.Shared.MicrosoftMailDestinationOptions();
oMicrosoftMailDestinationOptions.MailToList = "[email protected]";
oMicrosoftMailDestinationOptions.MailSubject = "test";
oMicrosoftMailDestinationOptions.MailMessage = "Body text";
CrystalDecisions.Shared.PdfRtfWordFormatOptions oPdfRtfWordFormatOptions = new CrystalDecisions.Shared.PdfRtfWordFormatOptions();
oExportOptions.ExportDestinationOptions = oMicrosoftMailDestinationOptions;
oExportOptions.ExportDestinationType = CrystalDecisions.Shared.ExportDestinationType.MicrosoftMail;
oExportOptions.ExportFormatType = CrystalDecisions.Shared.ExportFormatType.PortableDocFormat;
oExportOptions.ExportFormatOptions = oPdfRtfWordFormatOptions;
this.ReportSource.ReportDocument.Export( oExportOptions );
}
}
catch ( Exception )
{
throw;
}
}
/// <summary>
/// Exports the Current Report to a Stream
/// </summary>
/// <returns></returns>
public Stream ExportToStream()
{
try
{
return this.ReportSource.ReportDocument.ExportToStream( CrystalDecisions.Shared.ExportFormatType.PortableDocFormat );
}
catch ( Exception )
{
throw;
}
}
/// <summary>
/// Sets the Parameters
/// </summary>
private void SetParameters()
{
try
{
if ( this.ParameterFields.Count > 0 )
{
//Set the Parameters
this.ReportViewer.ParameterFieldInfo = this.ParameterFields;
}
//Set the report source
this.ReportViewer.ReportSource = this.ReportSource;
}
catch ( Exception )
{
throw;
}
}
#endregion Methods
//---------------------------------------------------------------------------------------------------------------------------
}
}

Para usar esto en el código:

/// <summary>
/// Page Load
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load( object sender, EventArgs e )
{
try
{
if ( !Page.IsPostBack )
{
//Set the report filename
this.CrystalReportViewer.ReportFileName = @"~/Reports/WAP Std Sage PurchaseOrder.rpt";
if ( base.CurrentOrder != null )
{
//Set the Sage Database
this.CrystalReportViewer.SageDatabase = base.CurrentOrder.SageDatabase;
//Set Order ID parameter
this.CrystalReportViewer.AddDiscreteValue( "OrderID", base.CurrentOrder.OrderID );
}
}
}
catch ( Exception ex )
{
ErrorLogging.LogError( ex );
}
}

Los principales métodos para mirar son AddDiscreteValue y SetParameters en el Control de usuario

EDITAR:

Métodos relevantes resumidos:

/// <summary>
/// Sets the Parameters
/// </summary>
private void SetParameters()
{
try
{
if ( this.ParameterFields.Count > 0 )
{
//Set the Parameters
this.ReportViewer.ParameterFieldInfo = this.ParameterFields;
}
//Set the report source
this.ReportViewer.ReportSource = this.ReportSource;
}
catch ( Exception )
{
throw;
}
}
/// Adds a discrete parameteer value
/// </summary>
/// <param name="ParameterName">The namee of the parameter to set</param>
/// <param name="value">The value of the parameter</param>
public void AddDiscreteValue( string ParameterName, object value )
{
try
{
//Create a new Parameter Field
CrystalDecisions.Shared.ParameterField oParameterField = new CrystalDecisions.Shared.ParameterField();
oParameterField.Name = ParameterName;
//Create a new Discrete Value
CrystalDecisions.Shared.ParameterDiscreteValue oParameterDiscreteValue = new CrystalDecisions.Shared.ParameterDiscreteValue();
oParameterDiscreteValue.Value = value;
//Add the value
oParameterField.CurrentValues.Add( oParameterDiscreteValue );
//Add the parameter field
this.ParameterFields.Add( oParameterField );
}
catch ( Exception )
{
throw;
}
}