DataColumn Class latest version

Constructors

• DataColumn()   Initializes a new instance of a DataColumn class as type string.
• DataColumn(String)   Initializes a new instance of the DataColumn class, as type string, using the specified column name.
• DataColumn(String, Type)   Initializes a new instance of the DataColumn class using the specified column name and data type.
• DataColumn(String, Type, String)   Initializes a new instance of the DataColumn class using the specified name, data type, and expression.
• DataColumn(String, Type, String, MappingType)   Initializes a new instance of the DataColumn class using the specified name, data type, expression, and value that determines whether the column is an attribute.

Methods

• CheckNotAllowNull()   protected internal This member supports the .NET Framework infrastructure and is not intended to be used directly from your code.
• CheckUnique()   protected This member supports the .NET Framework infrastructure and is not intended to be used directly from your code.
• OnPropertyChanging(PropertyChangedEventArgs)   protectedvirtual This member supports the .NET Framework infrastructure and is not intended to be used directly from your code.
• RaisePropertyChanging(String)   protected internal This member supports the .NET Framework infrastructure and is not intended to be used directly from your code.
• SetOrdinal(Int32)   Changes the ordinal or position of the DataColumn to the specified ordinal or position.
• ToString()   virtual Gets the Expression of the column, if one exists.

Properties

• AllowDBNull   Gets or sets a value that indicates whether null values are allowed in this column for rows that belong to the table.
• AutoIncrement   Gets or sets a value that indicates whether the column automatically increments the value of the column for new rows added to the table.
• AutoIncrementSeed   Gets or sets the starting value for a column that has its AutoIncrement property set to true. The default is 0.
• AutoIncrementStep   Gets or sets the increment used by a column with its AutoIncrement property set to true.
• Caption   Gets or sets the caption for the column.
• ColumnMapping   virtual Gets or sets the MappingType of the column.
• ColumnName   Gets or sets the name of the column in the DataColumnCollection.
• DataType   Gets or sets the type of data stored in the column.
• DateTimeMode   Gets or sets the DateTimeMode for the column.
• DefaultValue   Gets or sets the default value for the column when you are creating new rows.
• Expression   Gets or sets the expression used to filter rows, calculate the values in a column, or create an aggregate column.
• ExtendedProperties   Gets the collection of custom user information associated with a DataColumn.
• MaxLength   Gets or sets the maximum length of a text column.
• Namespace   Gets or sets the namespace of the DataColumn.
• Ordinal   Gets the (zero-based) position of the column in the DataColumnCollection collection.
• Prefix   Gets or sets an XML prefix that aliases the namespace of the DataTable.
• ReadOnly   Gets or sets a value that indicates whether the column allows for changes as soon as a row has been added to the table.
• Table   Gets the DataTable to which the column belongs to.
• Unique   Gets or sets a value that indicates whether the values in each row of the column must be unique.

Assemblies

• netstandard
• System.Data.Common