总结DataGridview中选定的单元格时出现的问题

Question

我使用此代码求和所选单元格。哪里是信其工作良好，但是当用户selecte细胞引发异常：）我如何能确保当selectet细胞是字母不使之

Answer 1

private void dataGridView1_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e) 
    { 
     String filterStatus = DataGridViewAutoFilterColumnHeaderCell.GetFilterStatus(dataGridView1); 
     if (String.IsNullOrEmpty(filterStatus)) 
     { 
      showAllLabel.Visible = false; 
      filterStatusLabel.Visible = false; 
     } 
     else 
     { 
      int result = -1; 
      Int32.TryParse(filterStatus, out result); 
      if (result != 0) 
      { 
       // it is a number 
       showAllLabel.Visible = true; 
       filterStatusLabel.Visible = true; 
       filterStatusLabel.Text = filterStatus; 
      } 
      else 
      { 
       // it can be a number yet won't help you with adding 
      } 
     } 
    } 

Answer 2

这是我的代码

private void dataGridView1_DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e) 
    { 
     String filterStatus = DataGridViewAutoFilterColumnHeaderCell.GetFilterStatus(dataGridView1); 
     if (String.IsNullOrEmpty(filterStatus)) 
     { 
      showAllLabel.Visible = false; 
      filterStatusLabel.Visible = false; 
     } 
     else 
     { 
      showAllLabel.Visible = true; 
      filterStatusLabel.Visible = true; 
      filterStatusLabel.Text = filterStatus; 
     } 
    }