IsDBNull()

static bool System.Convert.IsDBNull ( [NotNullWhen(true)] object? value )

inlinestatic

Definition at line 215 of file Convert.cs.

    {
        if (value == System.DBNull.Value)
        {
            return true;
        }
        if (!(value is IConvertible convertible))
        {
            return false;
        }
        return convertible.GetTypeCode() == TypeCode.DBNull;
    }

References System.DBNull.Value, and System.value.

Referenced by System.Data.Common.DbCommandBuilder.BuildInsertCommand(), System.Xml.XmlDataDocument.ForceFoliation(), System.Data.Common.DataRecordInternal.IsDBNull(), System.Data.ProviderBase.SchemaMapping.LoadDataRowChapters(), System.Xml.XmlDataDocument.NeedXSI_NilAttr(), System.Xml.XPathNodePointer.NextColumn(), System.Xml.DataPointer.NextColumn(), System.Xml.XmlDataDocument.OnColumnValueChanged(), System.Xml.XmlDataDocument.OnNestedParentChange(), System.Xml.XmlDataDocument.OnRowChanging(), and System.Xml.XPathNodePointer.PreviousColumn().