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DataRow.HasErrors Property

Gets a value indicating whether there are errors in a row.

[Visual Basic]
Public ReadOnly Property HasErrors As Boolean
[C#]
public bool HasErrors {get;}
[C++]
public: __property bool get_HasErrors();
[JScript]
public function get HasErrors() : Boolean;

Property Value

true if the row contains an error; otherwise, false.

Remarks

When validating data, you can set an error on any column in a row. Such a column, when displayed in the System.Windows.Forms.DataGrid control, is marked with a red exclamation point to signal the user that the column is in error.

Use SetColumnError to set an error on any column.

Use the GetColumnError and GetColumnsInError methods to return columns with errors.

The ClearErrors method clears all errors for the row.

Example

[Visual Basic, C#, C++] The following example uses the HasErrors to check for errors. If the row has errors, the GetColumnsInError method returns the array of columns with errors that can then be resolved. The ClearErrors method is then called to clear all errors.

[Visual Basic] 
Private Sub GetAllErrs(ByVal myRow As DataRow)
    ' Declare an array variable for DataColumn objects.
    Dim colArr() As DataColumn 
    ' If the Row has errors, check use GetColumnsInError.
    Dim i As Integer
    If myRow.HasErrors Then 
       ' Get the array of columns in error.
       colArr = myRow.GetColumnsInError()
       For i = 0 to colArr.Length - 1
          ' Insert code to fix errors on each column.
          Console.WriteLine(colArr(i).ColumnName)
       Next i
    ' Clear errors after reconciling.
    myRow.ClearErrors()
    End If
 End Sub

[C#] 
private void GetAllErrs(DataRow myRow){
   // Declare an array variable for DataColumn objects.
   DataColumn[] colArr; 
   // If the Row has errors, check use GetColumnsInError.
   if(myRow.HasErrors){
      // Get the array of columns in error.
      colArr = myRow.GetColumnsInError();
      for(int i = 0; i < colArr.Length; i++){
         // Insert code to fix errors on each column.
         Console.WriteLine(colArr[i].ColumnName);
      }
   // Clear errors after reconciling.
   myRow.ClearErrors();
   }
}
   . . . 
private void GetAllErrs(DataRow myRow){
   // Declare an array variable for DataColumn objects.
   DataColumn[] colArr; 
   // If the Row has errors, check use GetColumnsInError.
   if(myRow.HasErrors){
      // Get the array of columns in error.
      colArr = myRow.GetColumnsInError();
      for(int i = 0; i < colArr.Length; i++){
         // Insert code to fix errors on each column.
         Console.WriteLine(colArr[i].ColumnName);
      }
   // Clear errors after reconciling.
   myRow.ClearErrors();
   }
}

[C++] 
private:
 void GetAllErrs(DataRow* myRow){
    // Declare an array variable for DataColumn objects.
    DataColumn* colArr[]; 
    // If the Row has errors, check use GetColumnsInError.
    if(myRow->HasErrors){
       // Get the array of columns in error.
       colArr = myRow->GetColumnsInError();
       for(int i = 0; i < colArr->Length; i++){
          // Insert code to fix errors on each column.
          Console::WriteLine(colArr[i]->ColumnName);
       }
    // Clear errors after reconciling.
    myRow->ClearErrors();
    }
 }

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework

See Also

DataRow Class | DataRow Members | System.Data Namespace | ClearErrors | DataColumnCollection | GetColumnError | GetColumnsInError | SetColumnError

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