1
我有以下代碼(DevExpress的分量):問題與分組
dgvDisplayDictionary.DataSource = DataAccessor.GetAllRecords();
gvDisplay.BeginSort();
gvDisplay.ClearGrouping();
gvDisplay.Columns[0].GroupInterval = ColumnGroupInterval.Alphabetical;
gvDisplay.Columns[0].GroupIndex = 0;
gvDisplay.EndSort();
我收到以下錯誤:
At least one object must implement IComparable.
我的類綁定到gvDisplay
:
public class NormDocCost:AbstractDisplayDictionary.
{
public virtual Category Category { get; set; }
public virtual DocumentFormat DocumentFormat { get; set; }
public virtual Translate Translate { get; set; }
public virtual int NdcId { get; set; }
public virtual int PageStart { get; set; }
public virtual int PageEnd { get; set; }
public virtual double Cost { get; set; }
public virtual DateTime? DateFrom { get; set; }
public virtual DateTime? DateTo { get; set; }
}
我有試圖寫這個代碼,但不能正常工作:
public int CompareTo(object other)
{
var obj = (NormDocCost)other;
if(obj.Category.Id == Category.Id)
{
return this.Category.NameRu.CompareTo(obj.Category.NameRu);
}
return obj.Category.Id.CompareTo(Category.Id);
}
是的,我在類別類中寫了CompareTo,現在可以工作。但不是我想要的。無論如何,這是其他問題。 – user348173