DataGridView HasErrors?

Question

유효성 검사 오류 (CellValidating 이벤트를 사용하여 셀의 ErrorText 속성을 사용하여 설정)가있는 경우 사용자가 DataGridView의 변경 내용을 저장하지 못하게하고 싶습니다.

myDataGridView.HasErrors()과 같은 방법을 찾고 있습니다 (볼 수는 없습니다)? 는 모습을 가지고있는 DataGridView를 확인하는 방법에 대한 예제가

MSDN에서

Answer 1

...

DataGridView

난 그냥 당신이 검증하는 동시에 그것을 그것을

Answer 2

도움 희망 행. 나는 문제가 이제 해결되었다고 생각하지만 여러 필드 검증 대처에 대한 동일한 문제에 직면 다른 사람들을 돕기 위해 내 솔루션을 추가 할 것입니다 게시 된 MSDN 예제 아리 ...

private void dataGridView1_CellValidating(object sender, 
    DataGridViewCellValidatingEventArgs e) 
{ 
    dataGridView1.Rows[e.RowIndex].ErrorText = ""; 
    int newInteger; 

    if (dataGridView1.Rows[e.RowIndex].IsNewRow) { return; } 
    if (!int.TryParse(e.FormattedValue.ToString(), 
     out newInteger) || newInteger < 0) 
    { 
     e.Cancel = true; 
     dataGridView1.Rows[e.RowIndex].ErrorText = "the value must be a non-negative integer"; 

     //If it's simple, do something like this here. 
     this.SubmitButton.Enabled = false; 

     //If not, set a private boolean variable scoped to your class that you can use elsewhere. 
     this.PassedValidation = false; 
    } 
} 

Answer 3

사용 :

이어서

public bool validation1_valid = true; 
public bool validation2_valid = true; 

상기 데이터 그리드의 _CellValueChanged 방법 :

private void gridView_CellValueChanged(object sender, DataGridViewCellEventArgs e) 
    { 
     string cellHeader = gridView.Columns[e.ColumnIndex].HeaderText.ToString(); 

     //if cell is one that needs validating 
     if (cellHeader == "Something" || cellHeader == "Something Else") 
     { 
      //if it isn't null/empty 
      if (gridView.Rows[e.RowIndex].Cells[e.ColumnIndex].Value != null 
       && gridView.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString() != "") 
      { 
       //check if it's valid (here using REGEX to check if it's a number)     
       if (System.Text.RegularExpressions.Regex.IsMatch(gridView.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString(), @"^(?:^\d+$|)$")) 
       { 
        //set the relevant boolean if the value to true if the cell it passes validation 
        switch (cellHeader) 
        { 
         case "Something": 
          validation1_valid= true; 
          break; 
         case "Something Else": 
          validation2_valid= true; 
          break; 
        } 

        //Add an error text 
        gridView.Columns[e.ColumnIndex].DefaultCellStyle.ForeColor = Color.Black; 
        gridView.Rows[e.RowIndex].Cells[e.ColumnIndex].ErrorText = String.Empty; 
        gridView.Rows[e.RowIndex].ErrorText = String.Empty; 

        //DON'T disable the button here - it will get changed every time the validation is called 
       } 
       else //doesn't pass validation 
       { 
        //set boolean to false 
        switch (cellHeader) 
        { 
         case "Something": 
          validation1_valid = false; 
          break; 
         case "Something Else": 
          validation2_valid = false; 
          break; 
        } 

        gridView.Columns[e.ColumnIndex].DefaultCellStyle.ForeColor = Color.Red; 
        gridView.Rows[e.RowIndex].Cells[e.ColumnIndex].ErrorText = "Value must be numeric."; 
       } 
      } 
      else //null or empty - I'm allowing these, so set error to "" and booleans to true 
      { 
       switch (cellHeader) 
        { 
         case "Something": 
          validation1_valid = true; 
          break; 
         case "Something Else": 
          validation2_valid = true; 
          break; 
        } 
       gridView.Columns[e.ColumnIndex].DefaultCellStyle.ForeColor = Color.Black; 
       gridView.Rows[e.RowIndex].Cells[e.ColumnIndex].ErrorText = String.Empty; 
       gridView.Rows[e.RowIndex].ErrorText = String.Empty; 
      } 
     } 

     //if there is an invalid field somewhere 
     if (validation1_valid == false || validation2_valid == false) 
     { 
      //set the button to false, and add an error to the row 
      btnSave.Enabled = false; 
      gridView.Rows[e.RowIndex].ErrorText = "There are validation errors."; 
     } 
     //else if they're all vaild 
     else if (validation1_valid == true && validation2_valid == true) 
     { 
      //set the button to true, and remove the error from the row 
      btnSave.Enabled = true; 
      gridView.Rows[e.RowIndex].ErrorText = String.Empty; 
     } 
    } 

입력이 유효한지 여부 whetehr

제가 저장하는 어떤 변수를 생성 pubilc