System.Argument Null异常值不能为null参数名称:值 [英] System.Argument Null Exception Value cannot be null.Parameter name: value

问题描述

if (CaseStatusDay >= maxDays)
{
  if (currentrow != null)
  {
    currentrow.BeginEdit();
    if (showFlagCaseStatus.Contains(currentCaseStatus))
    {
      currentrow["CaseStatusFlag"] = "~/Images/flag_red.png";

      if (webSession.GetVariable("LoginCompanyType") == "CCCS")
      {
        if (e.Row.Cells.Count >= 13)
        {
          e.Row.Cells[12].Attributes.Add("onmouseover", "tooltip('Case has not been statused in the last " + maxdaysdispay + " days')");
          e.Row.Cells[12].Attributes.Add("onmouseout", "exit();");
        }
      }
      else if (webSession.GetVariable("LoginCompanyType") == "VEND" || webSession.GetVariable("LoginCompanyType") == "INS")
      {
        if (e.Row.Cells.Count >= 14)
        {
          e.Row.Cells[13].Attributes.Add("onmouseover", "tooltip('Case has not been statused in the last " + maxdaysdispay + " days')");
          e.Row.Cells[13].Attributes.Add("onmouseout", "exit();");
        }
      }
    }
  }
}

推荐答案

由于我们无法访问您的环境，因此上述代码对我们无能为力.
最好的答案是在运行时在调试器中打开代码，并查看从何处获取空值.

There is very little we can do for you with the above code as we do not have access to your environment.

The best answer is open your code in a debugger while running and see where you are getting the null value.

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