DataColumnMappingCollection.Count Property

Reference

Definition

Namespace:: System.Data.Common

Assemblies:: netstandard.dll, System.Data.Common.dll

Assembly:: System.Data.Common.dll

Assembly:: System.Data.dll

Assembly:: netstandard.dll

Source:: DataColumnMappingCollection.cs

Source:: DataColumnMappingCollection.cs

Source:: DataColumnMappingCollection.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets the number of DataColumnMapping objects in the collection.

public:
 property int Count { int get(); };

[System.ComponentModel.Browsable(false)]
public int Count { get; }

[System.ComponentModel.Browsable(false)]
[System.Data.DataSysDescription("DataColumnMappings_Count")]
public int Count { get; }

[<System.ComponentModel.Browsable(false)>]
member this.Count : int

[<System.ComponentModel.Browsable(false)>]
[<System.Data.DataSysDescription("DataColumnMappings_Count")>]
member this.Count : int

Public ReadOnly Property Count As Integer

Property Value

Int32

The number of items in the collection.

Implements

Count

Attributes: BrowsableAttribute DataSysDescriptionAttribute

Examples

The following example creates a DataColumnMappingCollection collection, adds DataColumnMapping objects to the collection, and displays a list of the mapped source columns.

public void CreateColumnMappings()
{
    DataColumnMappingCollection mappings =
        new DataColumnMappingCollection();
    mappings.Add("Category Name","DataCategory");
    mappings.Add("Description","DataDescription");
    mappings.Add("Picture","DataPicture");
    string message = "ColumnMappings:\n";
    for(int i=0;i < mappings.Count;i++)
    {
        message += i.ToString() + " "
            + mappings[i].ToString() + "\n";
    }
    Console.WriteLine(message);
}

Public Sub CreateColumnMappings()
    Dim mappings As New DataColumnMappingCollection()
    mappings.Add("Category Name", "DataCategory")
    mappings.Add("Description", "DataDescription")
    mappings.Add("Picture", "DataPicture")
    Dim message As String = "ColumnMappings:" + ControlChars.Cr
    Dim i As Integer
    For i = 0 To mappings.Count - 1
        message += i.ToString() + " " + mappings(i).ToString() _
           + ControlChars.Cr
    Next i
    Console.WriteLine(message)
End Sub

Applies to

Produkt	Verzie
.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

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