Look up and passing ranges in enterprise portal

protected void PriorApp_LookUp(object sender, AxLookupEventArgs e)

{

string Employee;

// AxBoundField boundField = (AxBoundField)sender;

AxLookup lookup = e.LookupControl;

using (Proxy.SysDataSetBuilder sysDataSetBuilder = Proxy.SysDataSetBuilder.constructLookupDataSet(this.AxSession.AxaptaAdapter, TableMetadata.TableNum(this.AxSession, "TrvExpTable")))

{

// Set the run time generated data set as the lookup data set

lookup.LookupDataSet = new Microsoft.Dynamics.Framework.Data.Ax.DataSet(this.AxSession, sysDataSetBuilder.toDataSet());

}

Employee = ApplicationProxy.TrvExpTable.EmployeeEP(this.AxSession.AxaptaAdapter, this.ExpNumber);

// Filter the lookup to only display acceptable account types

using (Proxy.Query query = lookup.LookupDataSet.DataSetViews[0].MasterDataSource.query())

{

// query.dataSourceNo(1).addRange(TableDataFieldMetadata.FieldNum(this.AxSession, "TrvExptable", "txt2")).value = Label_Purpose.Text;

query.dataSourceNo(1).addRange(TableDataFieldMetadata.FieldNum(this.AxSession, "TrvExptable", "Employee")).value = Employee;

query.dataSourceNo(1).addRange(TableDataFieldMetadata.FieldNum(this.AxSession, "TrvExptable", "asu_TypeOfRequest")).value = "1";

query.dataSourceNo(1).addRange(TableDataFieldMetadata.FieldNum(this.AxSession, "TrvExptable", "ApprovalStatus")).value = "3";

}

}