动态地将DataSource添加到ReportViewer

问题描述

我有一个ReportViewer，其中我动态加载了一个RDLC文件（本地处理模式）。我需要向ReportViewer提供数据，所以我尝试将新的ReportDataSource对象添加到ReportViewer.LocalReport.DataSources。

我得到的是一个ArgumentException，消息"值不属于预期范围"

sqlConnection1.ConnectionString = ConnectionString（connectionRef）;
sqlCommand1.CommandType = CommandType.StoredProcedure;
sqlCommand1.Connection = sqlConnection1;
sqlCommand1.CommandText = storedProcedureName;
sqlDataAdapter1.SelectCommand = sqlCommand1;

sqlDataAdapter1.TableMappings.Clear（）;
for（int i = 0; i< dsData.Tables.Count; i ++）
{sqlDataAdapter1.TableMappings.Add（"Table"+（i == 0？""：i.ToString（）），dsData.Tables [i] .TableName）;
}
sqlDataAdapter1.Fill（dsData）;


reportViewer1.ProcessingMode = ProcessingMode.Local;
reportViewer1.LocalReport.ReportPath = @"C：\Temp \ReportEngine \ ReportEngine\ReportDefinition.rdlc";
reportViewer1.LocalReport.DataSources.Clear（ ）;
ReadOnlyCollection< string> dataSourcesNames =（ReadOnlyCollection< string>）reportViewer1.LocalReport.GetDataSourceNames（）;

ReportDataSource rds = new ReportDataSource（）;
rds.Name = dataSourcesNames [0];
rds.Value = dsData; //< ------ - - - - - - - - - - - - -HERE罢工异常
reportViewer1.LocalReport.DataSources.Add（rds）;
reportViewer1.RefreshReport（ ）;

在我将类型化DataSet分配给ReportDataSource的Value属性的行中抛出异常。
我在这里做错了什么？

TIA！ ：）

I have a ReportViewer in which I dynamically loaded a RDLC file (Local Processing mode). I need to provide the data to the ReportViewer so I try to add a new ReportDataSource object to the ReportViewer.LocalReport.DataSources.

All I get is an ArgumentException with the message "Value does not fall within the expected range"

sqlConnection1.ConnectionString = ConnectionString(connectionRef);
sqlCommand1.CommandType = CommandType.StoredProcedure;
sqlCommand1.Connection = sqlConnection1;
sqlCommand1.CommandText = storedProcedureName;
sqlDataAdapter1.SelectCommand = sqlCommand1;

sqlDataAdapter1.TableMappings.Clear();
for (int i = 0; i < dsData.Tables.Count; i++)
{
sqlDataAdapter1.TableMappings.Add("Table" + (i == 0 ? "" : i.ToString()), dsData.Tables[ i ].TableName);
}
sqlDataAdapter1.Fill(dsData);


reportViewer1.ProcessingMode = ProcessingMode.Local;
reportViewer1.LocalReport.ReportPath = @"C:\Temp\ReportEngine\ReportEngine\ReportDefinition.rdlc";
reportViewer1.LocalReport.DataSources.Clear();
ReadOnlyCollection<string> dataSourcesNames = (ReadOnlyCollection<string>)reportViewer1.LocalReport.GetDataSourceNames();


ReportDataSource rds = new ReportDataSource();
rds.Name = dataSourcesNames[0];
rds.Value = dsData; // <------ - - - - - - - - - - - - -HERE STRIKES THE EXCEPTION
reportViewer1.LocalReport.DataSources.Add(rds);
reportViewer1.RefreshReport();


The exception is thrown at the line where I assign the typed DataSet to the ReportDataSource's Value property.
What am I doing wrong here?

TIA! :)

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