我注意到Range.Value在VBA和C#中为日期值产生不同的结果。
例如,如果单元格的值为5/13/1988且NumberFormat为d / m / yyyy,则在VBA Range.Value中将返回“5/13/1988”,而在C#中则返回“5/13/1988 12: 00:00 AM“
Range.Value2在两种语言中都是相同的(32276)。
有没有人知道为什么VBA和C#会在这种情况下产生不一致的结果?
请注意,我知道我可以使用Range.Value2和Range.NumberFormat的组合,然后在C#中格式化值,但我感兴趣的是为什么行为不一致。
答案 0 :(得分:1)
简单。在Excel Interop(您在VSTO项目中引用)中,MS显然已将Date单元格值映射到.Net DateTime数据类型。
对他们来说是最好的选择,你不会想像Date .Net数据类型一样使用(记住VB classic只有Date数据类型而不是DateTime)。
在此处查看Excel如何处理数据:https://stackoverflow.com/a/13983731
答案 1 :(得分:1)
VB.Net和C#处理它的方式不同。
Excel 2013
Sub Sample()
MsgBox Sheet1.Range("A1").Value
End Sub
VB.Net 2013
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
'~~> Opens an existing Workbook. Change path and filename as applicable
xlWorkBook = xlApp.Workbooks.Open("C:\Users\Siddharth\Desktop\Delete Later\Sample.xlsx")
'~~> Display Excel
xlApp.Visible = True
xlWorkSheet = xlWorkBook.Sheets("Sheet1")
MessageBox.Show(xlWorkSheet.Range("A1").Value)
'
'~~> Rest of the code
'
End Sub
C#2013
C#很遗憾就像你提到的那样处理它。
您可以这样做以获得所需的结果
private void button1_Click(object sender, EventArgs e)
{
Microsoft.Office.Interop.Excel.Application xlexcel;
Microsoft.Office.Interop.Excel.Workbook xlWorkBook;
Microsoft.Office.Interop.Excel.Worksheet xlWorkSheet;
object misValue = System.Reflection.Missing.Value;
xlexcel = new Excel.Application();
xlexcel.Visible=true ;
xlWorkBook = xlexcel.Workbooks.Open(
"C:\\Users\\Siddharth\\Desktop\\Delete Later\\Sample.xlsx",
0, true, 5, "", "", true,
Microsoft.Office.Interop.Excel.XlPlatform.xlWindows,
"\t", false, false, 0, true, 1, 0);
// Set Sheet 1 as the sheet you want to work with
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
String cellvalue = xlWorkSheet.Cells[1, 1].Value.ToString("MM/dd/yyyy",
CultureInfo.InvariantCulture);
MessageBox.Show(cellvalue);
//
//~~> Rest of the code
//
}
答案 2 :(得分:-1)
using System.Threading;
using System.Globalization;
// Put the following code before InitializeComponent()
// Sets the culture to US English
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
// Sets the UI culture too
Thread.CurrentThread.CurrentUICulture = new CultureInfo("en-US");