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Devart.Common Namespace / DbLoaderColumnCollection Class / Contains Method / Contains(DbLoaderColumn) Method
The value of the DbLoaderColumn object to find.
Example

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    Contains(DbLoaderColumn) Method
    In This Topic
    Gets a value indicating whether a DbLoaderColumn object exists in the collection.
    Syntax
    'Declaration
     
    Public Overloads Function Contains( _
       ByVal value As DbLoaderColumn _
    ) As Boolean
    public bool Contains( 
       DbLoaderColumn value
    )

    Parameters

    value
    The value of the DbLoaderColumn object to find.

    Return Value

    true if the collection contains the DbLoaderColumn; otherwise, false.
    Example
    The following example searches for a DbLoaderColumn within a DbLoaderColumnCollection. If the column exists, the example displays the index of the column. If the column does not exist, the example displays an error. This example assumes that a DbLoaderColumnCollection has already been created.
    public void SearchMyColumns() {
      // ...
      // create MySqlLoaderColumnCollection myColumns and MySqlLoaderColumn myNewColumn
      // ...
      if (!myColumns.Contains((Object) myNewColumn))
        MessageBox.Show("ERROR: no such column in the collection");
      else
        MessageBox.Show("match on column #" +
          myColumns.IndexOf((Object) myNewColumn).ToString());
    }
    Public Sub SearchMyColumns()
      ' ...
      ' create MySqlLoaderColumnCollection myColumns and MySqlLoaderColumn myNewColumn
      ' ...
      If Not myColumns.Contains(CType(myNewColumn, Object)) Then
        MessageBox.Show("ERROR: no such column in the collection")
      Else
        MessageBox.Show("match on column #" & myColumns.IndexOf(CType(myNewColumn, Object)).ToString())
      End If
    End Sub 'SearchMyColumns
    Requirements

    Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

    See Also