DataColumnMappingCollection.IndexOf Method
Definition
Important
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Gets the location of the specified DataColumnMapping within the collection.
Overloads
| IndexOf(String) |
Gets the location of the DataColumnMapping with the specified source column name. |
| IndexOf(Object) |
Gets the location of the specified Object that is a DataColumnMapping within the collection. |
Gets the location of the DataColumnMapping with the specified source column name.
public:
virtual int IndexOf(System::String ^ sourceColumn);public int IndexOf(string? sourceColumn);public int IndexOf(string sourceColumn);abstract member IndexOf : string -> int
override this.IndexOf : string -> intPublic Function IndexOf (sourceColumn As String) As IntegerParameters
- sourceColumn
- String
The case-sensitive name of the source column.
Returns
The zero-based location of the DataColumnMapping with the specified case-sensitive source column name.
Implements
Examples
The following example searches for a DataColumnMapping object with the given source column name within a DataColumnMappingCollection collection. If the DataColumnMapping exists, the example displays the name and the index of the mapping. If the mapping does not exist, the example displays an error. This example assumes that a DataColumnMappingCollection collection has been created.
public void FindDataColumnMapping()
{
// ...
// create columnMappings
// ...
if (!columnMappings.Contains("Description"))
{
Console.WriteLine("Error: no such table in collection.");
}
else
{
Console.WriteLine("Name {0}",
columnMappings["Description"].ToString());
Console.WriteLine("Index: {0}",
columnMappings.IndexOf("Description").ToString());
}
}
Public Sub FindDataColumnMapping()
' ...
' create columnMappings
' ...
If Not columnMappings.Contains("Description") Then
Console.WriteLine("Error: no such table in collection.")
Else
Console.WriteLine("Name: {0}", _
columnMappings("Description").ToString())
Console.WriteLine("Index: {0}", _
columnMappings.IndexOf("Description").ToString())
End If
End Sub
See also
Applies to
.NET 10 и другие версии
| Продукт | Версии |
|---|---|
| .NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
Gets the location of the specified Object that is a DataColumnMapping within the collection.
public:
virtual int IndexOf(System::Object ^ value);public int IndexOf(object? value);public int IndexOf(object value);abstract member IndexOf : obj -> int
override this.IndexOf : obj -> intPublic Function IndexOf (value As Object) As IntegerParameters
- value
- Object
An Object that is the DataColumnMapping to find.
Returns
The zero-based location of the specified Object that is a DataColumnMapping within the collection.
Implements
Examples
The following example searches for a DataColumnMapping within the collection. If the mapping exists in the collection, it is removed. If the mapping does not exist within the collection, it is added to the collection and its index is displayed. The example assumes that a DataColumnMappingCollection collection and a DataColumnMapping object have been created.
public void ChangedMyMind()
{
// ...
// create mappings and mapping
// ...
if (mappings.Contains((Object) mapping))
{
mappings.Remove((Object) mapping);
}
else
{
mappings.Add((Object) mapping);
Console.WriteLine("Index of new mapping: " +
mappings.IndexOf((Object) mapping));
}
}
Public Sub ChangedMyMind()
' ...
' create mappings and mapping
' ...
If mappings.Contains(CType(mapping, Object)) Then
mappings.Remove(CType(mapping, Object))
Else
mappings.Add(CType(mapping, Object))
Console.WriteLine("Index of new mapping: " & _
mappings.IndexOf(CType(mapping, Object)).ToString())
End If
End Sub
See also
Applies to
.NET 10 и другие версии
| Продукт | Версии |
|---|---|
| .NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
