的DevExpress - 設置單元格值 - 類型 'System.StackOverflowException' 的未處理的異常出現在mscorlib.dll

Question

我有此代碼（gridview的，cellvaluechanged事件）：

 private void gv1_CellValueChanged(object sender, DevExpress.XtraGrid.Views.Base.CellValueChangedEventArgs e) 
{ 
string value1 = Convert.ToString(gv1.GetRowCellValue(gv1.FocusedRowHandle, "unitvalue")); 
object cellValue = Convert.ToUInt32(value1) * Convert.ToInt32(days_worked); 
gv1.SetRowCellValue(gv1.FocusedRowHandle, "totalvalue", cellValue); 
} 

「days_worked」 是一個值從獲得標籤控件，該小區沒有發生變化的值， 出現以下錯誤：類型System.StackOverflowException「未處理的異常出現在mscorlib.dll

「總價值」是我的數據庫列

請幫忙， 謝謝！

Answer 1

如文檔說

The CellValueChanged event fires in response to a cell's value being changed. The list below gives the possible reasons for this event being raised:

• An end-user has closed an in-place editor after changing the editor's value.
• A cell's value has been changed using the methods provided by Views. For instance, the SetRowCellValue method can be used for this purpose.

所以，你需要改變你的代碼，建議文檔

private void gv1_CellValueChanged(object sender, DevExpress.XtraGrid.Views.Base.CellValueChangedEventArgs e) 
{ 
    if (e.Column.Caption != "totalvalue") return; // if event in fire from cells in column "totalvalue" 

    string value1 = Convert.ToString(gv1.GetRowCellValue(gv1.FocusedRowHandle, "unitvalue")); 
    object cellValue = Convert.ToUInt32(value1) * Convert.ToInt32(days_worked); 
    gv1.SetRowCellValue(gv1.FocusedRowHandle, "totalvalue", cellValue); 
}