獲取類型下拉列表

Question

的形狀，這是一些可怕的代碼，我想提高：

Excel.Shapes theShapes = excelSheet.Shapes; 

foreach (Excel.Shape aShape in theShapes) 
{  
    foreach (var groupItem in aShape.GroupItems) 
    { 
     //Console.WriteLine(Microsoft.VisualBasic.Information.TypeName(groupItem));  
     var s = (Excel.Shape) groupItem; 
     if (s is Excel.OLEObject) continue; 
     try 
     { 
      if (s.FormControlType == Excel.XlFormControl.xlDropDown) 
      { 
       Console.WriteLine("### " + s.Name); 
      } 
     } 
     catch (Exception e) 
     { 

     } 
    } 
} 

有沒有辦法獲得下拉列表更容易？當我嘗試獲取FormControlType時，如何避免上述異常？

Answer 1

只需將try...cath替換爲確認其爲FormControl的條件即可。

Excel.Shapes theShapes = excelSheet.Shapes; 

foreach (Excel.Shape aShape in theShapes) 
{  
    foreach (var groupItem in aShape.GroupItems) 
    { 
     var s = (Excel.Shape) groupItem; 
     if (s is Excel.OLEObject) continue; 

     if (s.Type == Microsoft.Office.Core.MsoShapeType.msoFormControl) 
     { 
      if (s.FormControlType == Excel.XlFormControl.xlDropDown) 
      { 
       Console.WriteLine("### " + s.Name); 
      } 
     } 
    } 
}