主题：打印选择条件

 这里的条件没有起限制作用，可以帮我改改吗，通过选择报价日期和名称来选择打印记录
Dim ww As String =e.Form.Controls("ComboBox1").Value
Dim rq As Date = e.Form.Controls("DateTimePicker1").Value

Dim Book As New XLS.Book(ProjectPath & "Attachments\报价表.xls") '打开模板
Dim fl As String = ProjectPath & "Reports\报价表.xls"
Dim Sheet As XLS.Sheet = Book.Sheets(0)
Dim Filter As String

With e.Form.Controls("DateTimePicker1")
    If .Value IsNot Nothing Then
        If Filter > "" Then
            Filter = Filter & " And "
        End If      
        Filter = Filter & "报价日期 = '" & .Value & "'"  
 End If
End With
With e.Form.Controls("ComboBox1")
    If .Value IsNot Nothing Then
        If Filter > "" Then
            Filter = Filter & " And "
        End If
        Filter = Filter & "旺旺QQ = '" & .Value & "'"
    End If
End With

If filter > "" Then
    Sheet(3,19).Value = "<" & filter & ">"
Else
    Sheet(3,19).Value = "<all>"
End If
Book.Build() '生成报表
Book.Save(fl)
Dim Proc As New Process
Proc.File = fl
Proc.Start()