DataSet Konstruktoren

Quelle:

DataSet.cs

Quelle:

DataSet.cs

Quelle:

DataSet.cs

public:
 DataSet();

public DataSet ();

Public Sub New ()

Beispiele

Im folgenden Beispiel wird ein neues DataSeterstellt und zwei DataTable -Objekte hinzugefügt.

Private Sub CreateDataSet()
    Dim dataSet As New DataSet()

    ' Create two DataTable objects using a function.
    Dim table1 As DataTable = MakeTable("idTable1", "thing1")
    Dim table2 As DataTable = MakeTable("idTable2", "thing2")
    dataSet.Tables.Add(table1)
    dataSet.Tables.Add(table2)
    Console.WriteLine(dataSet.Tables.Count)
End Sub
 
 
Private Function MakeTable(c1Name As String, _
    c2Name As String) As DataTable
    Dim table As New DataTable
    
    ' Add two DataColumns
    Dim column As New DataColumn( _
        c1Name, System.Type.GetType("System.Integer"))
    table.Columns.Add(column)
    column = New DataColumn(c2Name, _
        System.Type.GetType("System.String"))
    MakeTable = table
End Function

Hinweise

Diese Implementierung des DataSet Konstruktors akzeptiert keine Parameter und erstellt den Standardnamen "NewDataSet" für die neue instance.

Ein Name für ist DataSet erforderlich, um sicherzustellen, dass die XML-Darstellung von DataSet immer einen Namen für das document-Element hat, das das Element der obersten Ebene in einer Schemadefinition ist.

Weitere Informationen

• DataTableCollection
• Verwenden von DataSets in ADO.NET

Quelle:

DataSet.cs

Quelle:

DataSet.cs

Quelle:

DataSet.cs

public:
 DataSet(System::String ^ dataSetName);

public DataSet (string dataSetName);

new System.Data.DataSet : string -> System.Data.DataSet

Public Sub New (dataSetName As String)

Parameter

Beispiele

Im folgenden Beispiel wird ein neues DataSeterstellt, dem zwei DataTable -Objekte hinzugefügt werden.

Private Sub CreateDataSet()
    Dim  dataSet As New DataSet("aNewDataSet")

    ' Create two DataTable objects using a function.
    Dim table1 As DataTable = MakeTable("idTable1", "thing1")
    Dim table2 As DataTable = MakeTable("idTable2", "thing2")

    dataSet.Tables.Add(table1)
    dataSet.Tables.Add(table2)
    Console.WriteLine(dataSet.DataSetName, dataSet.Tables.Count)
End Sub


Private Function MakeTable(c1Name As String, c2Name As String) _
    As DataTable
    Dim table As New DataTable
    
    ' Add two DataColumns
    Dim column As New DataColumn( _
        c1Name, System.Type.GetType("System.Integer"))
    table.Columns.Add(column)
    column = New DataColumn(c2Name, _
        System.Type.GetType("System.String"))
    table.Columns.Add(column)
    MakeTable = table
End Function

Hinweise

Ein Name für ist DataSet erforderlich, um sicherzustellen, dass die XML-Darstellung von DataSet immer einen Namen für das document-Element hat, das das Element der höchsten Ebene in einer Schemadefinition ist.

Weitere Informationen

• DataSetName
• DataTableCollection
• Verwenden von DataSets in ADO.NET

Quelle:

DataSet.cs

Quelle:

DataSet.cs

Quelle:

DataSet.cs

protected:
 DataSet(System::Runtime::Serialization::SerializationInfo ^ info, System::Runtime::Serialization::StreamingContext context);

protected DataSet (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context);

[System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
protected DataSet (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context);

new System.Data.DataSet : System.Runtime.Serialization.SerializationInfo * System.Runtime.Serialization.StreamingContext -> System.Data.DataSet

[<System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Data.DataSet : System.Runtime.Serialization.SerializationInfo * System.Runtime.Serialization.StreamingContext -> System.Data.DataSet

Protected Sub New (info As SerializationInfo, context As StreamingContext)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

Hinweise

Quelle:

DataSet.cs

Quelle:

DataSet.cs

Quelle:

DataSet.cs

protected:
 DataSet(System::Runtime::Serialization::SerializationInfo ^ info, System::Runtime::Serialization::StreamingContext context, bool ConstructSchema);

protected DataSet (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context, bool ConstructSchema);

[System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
protected DataSet (System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context, bool ConstructSchema);

new System.Data.DataSet : System.Runtime.Serialization.SerializationInfo * System.Runtime.Serialization.StreamingContext * bool -> System.Data.DataSet

[<System.Obsolete("This API supports obsolete formatter-based serialization. It should not be called or extended by application code.", DiagnosticId="SYSLIB0051", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Data.DataSet : System.Runtime.Serialization.SerializationInfo * System.Runtime.Serialization.StreamingContext * bool -> System.Data.DataSet

Protected Sub New (info As SerializationInfo, context As StreamingContext, ConstructSchema As Boolean)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

Hinweise