SpreadsheetLight c＃

Question

电子表格 Light是否具有在从右到左的方向上创建Excel工作表的任何功能。 也就是说， 一 栏应出现在excel表格的右侧。

Answer 1

SpreadSheetLight确实保留RightToLeft属性，如果您将RightToLeft属性设置为True打开现有工作簿，则可以修改现有工作簿以及Save或SaveAs，结果也将设置RightToLeft。

困难之处在于某些事情似乎很简单，因为它存在于Excel中的单个复选框中，尽管每个值都忽略了大多数属性，但每个工作表视图都设置了该属性。 由于SpreadSheetLight确实保留了此内容，因此意味着它确实读取并保存了该内容，因此您可以进行实际更改。 但是，它没有暴露，因此您需要使用反射。

这是一个快速而又肮脏的示例，说明如何在VB.net中为Workbook / SLDocument全局读取和修改它，应该足够容易地转换为C＃

Imports System.Reflection
Imports System.Runtime.CompilerServices
Imports SpreadsheetLight

Public Module SlDocumentExtender
    <Extension>
    Public Sub SetRightToLeft(ByVal slDoc As SLDocument, ByVal rightToLeft As Boolean)
        Dim sheetViews = GetSheetViews(slDoc.GetSlws)
        If Not sheetViews.Any AndAlso rightToLeft Then 'Don't bother creating a default SheetView if false since it's the default
            slDoc.FreezePanes(1, 0)
            slDoc.UnfreezePanes()
            sheetViews = GetSheetViews(slDoc.GetSlws)
        End If
        sheetViews.ForEach(Sub(sv) SetRightToLeftSheetView(sv, rightToLeft))
    End Sub

    <Extension>
    Public Function GetRightToLeft(ByVal slDoc As SLDocument) As Boolean
        Dim sheetViews = GetSheetViews(slDoc.GetSlws)
        Return sheetViews.Any(Function(sv) GetRightToLeftSheetView(sv)) 'Empty collection will return false which is the default so we're good
    End Function

    <Extension>
    Public Function GetSlws(ByVal slDoc As SLDocument) As Object 'SLWorksheet
        Return slDoc.GetType.GetField("slws", BindingFlags.Instance Or BindingFlags.NonPublic).GetValue(slDoc)
    End Function

    Private Sub SetRightToLeftSheetView(ByVal sheetView As Object, ByVal rightToLeft As Boolean)
        GetRequiredType(sheetView, "SpreadsheetLight.SLSheetView").GetProperty("RightToLeft", BindingFlags.Instance Or BindingFlags.NonPublic).SetValue(sheetView, rightToLeft)
    End Sub

    Private Function GetRightToLeftSheetView(ByVal sheetView As Object) As Boolean
        Return GetRequiredType(sheetView, "SpreadsheetLight.SLSheetView").GetProperty("RightToLeft", BindingFlags.Instance Or BindingFlags.NonPublic).GetValue(sheetView)
    End Function

    Private Function GetSheetViews(ByVal slws As Object) As List(Of Object) 'List<SLSheetView>
        Return DirectCast(GetRequiredType(slws, "SpreadsheetLight.SLWorksheet").GetProperty("SheetViews", BindingFlags.Instance Or BindingFlags.NonPublic).GetValue(slws), IList).OfType(Of Object).ToList()
    End Function

    Private Function GetRequiredType(ByVal obj As Object, ByVal requiredType_FullName As String) As Type
        Dim type = obj.GetType
        If Not type.FullName.Equals(requiredType_FullName) Then
            Throw New NotSupportedException(String.Format("Type ""{0}"" is not supported, this method only handles only type ""{1}"".", type.FullName, requiredType_FullName))
        End If
        Return type
    End Function
End Module

Answer 2

我对此进行了深入检查，发现SpreadsheetLight目前不支持从右到左的页面布局。