datagirdview列中的C＃信息正在闪烁 [英] C# information in datagirdview column is flickering

问题描述

我是初学者程序员，为我的学校在VS 2015 Professional中开发C＃WinForms解决方案。



我实施下面的代码后，第9栏的信息DataGridView闪烁并导致表单上的字段变灰。只有在我在屏幕上拖动并移动表格后才能正确显示。



你能看看我的代码，看看问题是什么？代码做我想要的，但我相信它可以完善。谢谢。非常感谢您的时间和帮助。



我的尝试：

  private   void  alunos_detDataGridView_CellFormatting（ object  sender，DataGridViewCellFormattingEventArgs e）
 {
  try  
 {
  decimal  midtermGrade = Convert.ToInt32（ this  .alunos_detDataGridView.Rows [e.RowIndex] .Cells [ 3 ]值）。 
  decimal  finalGrade = Convert.ToInt32（ this  .alunos_detDataGridView.Rows [e.RowIndex]。单元格[ 4 ]。值）; 
  decimal  oralGrade = Convert.ToInt32（ this  .alunos_detDataGridView.Rows [e.RowIndex]。单元格[ 5 ]。值）; 
 
  this  .alunos_detDataGridView.Rows [e.RowIndex] .Cells [ 9  ] .Value =（（midtermGrade + finalGrade + oralGrade）/  3 ）; 
 
  if （alunos_detDataGridView.CurrentRow.Cells [ 0 ]。Value.ToString （）！=  null ）
 {
 
  if （（ midtermGrade + finalGrade + oralGrade /  3 ）>  =  60 ）
 {
  this  .alunos_detDataGridView.Rows [e.RowIndex] .Cells [ 10 ]。值=   Aprovado; 
} 
  else  
 {
  this  .alunos_detDataGridView .Rows [e.RowIndex] .Cells [ 10 ]。值=   Reprovado; 
} 
} 
} 
  catch  
 {
} 

解决方案

我解决了这个问题！我用CellEndEdit事件替换了CellFormatting事件，现在一切都恢复正常了！ ：）

I am a beginner programmer developing a C# WinForms solution in VS 2015 Professional for my school.

After I implemented the code below, the information on column 9 of the DataGridView is flickering and causes the fields on my form to gray out. It displays correctly only after I drag and move the form around the screen.

Can you please take a look at my code and see what the problem is? The code does what I want, but I am sure it can be perfected. Thank you. I really appreciate your time and help.

What I have tried:

private void alunos_detDataGridView_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
     try
     {
        decimal midtermGrade = Convert.ToInt32(this.alunos_detDataGridView.Rows[e.RowIndex].Cells[3].Value);
        decimal finalGrade = Convert.ToInt32(this.alunos_detDataGridView.Rows[e.RowIndex].Cells[4].Value);
        decimal oralGrade = Convert.ToInt32(this.alunos_detDataGridView.Rows[e.RowIndex].Cells[5].Value);

        this.alunos_detDataGridView.Rows[e.RowIndex].Cells[9].Value = ((midtermGrade + finalGrade + oralGrade) / 3);

         if (alunos_detDataGridView.CurrentRow.Cells[0].Value.ToString() != null)
         {

             if ((midtermGrade + finalGrade + oralGrade / 3) >= 60)
             {
                 this.alunos_detDataGridView.Rows[e.RowIndex].Cells[10].Value = "Aprovado";
             }
             else
             {
                this.alunos_detDataGridView.Rows[e.RowIndex].Cells[10].Value = "Reprovado";
             }
         }
     }
     catch
     {
     }

解决方案

I fixed the problem! I replaced the CellFormatting event with the CellEndEdit event and now everything is back to normal! :)

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