DataTable.OnColumnChanging(DataColumnChangeEventArgs) Method

Reference

Definition

Namespace:: System.Data

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

Assembly:: System.Data.Common.dll

Assembly:: System.Data.dll

Assembly:: netstandard.dll

Source:: DataTable.cs

Source:: DataTable.cs

Source:: DataTable.cs

Important

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Raises the ColumnChanging event.

protected public:
 virtual void OnColumnChanging(System::Data::DataColumnChangeEventArgs ^ e);

protected:
 virtual void OnColumnChanging(System::Data::DataColumnChangeEventArgs ^ e);

protected internal virtual void OnColumnChanging(System.Data.DataColumnChangeEventArgs e);

protected virtual void OnColumnChanging(System.Data.DataColumnChangeEventArgs e);

abstract member OnColumnChanging : System.Data.DataColumnChangeEventArgs -> unit
override this.OnColumnChanging : System.Data.DataColumnChangeEventArgs -> unit

Protected Friend Overridable Sub OnColumnChanging (e As DataColumnChangeEventArgs)

Protected Overridable Sub OnColumnChanging (e As DataColumnChangeEventArgs)

Parameters

e: DataColumnChangeEventArgs

A DataColumnChangeEventArgs that contains the event data.

Remarks

Raising an event invokes the event handler through a delegate. For an overview, see Handling and Raising Events.

Notes to Inheritors

When overriding OnColumnChanging(DataColumnChangeEventArgs) in a derived class, be sure to call the base class's OnColumnChanging(DataColumnChangeEventArgs) method.

Applies to

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

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