DesignerDataColumn Class
Definition
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.
Represents a column of a table or view in the data store accessed through a data connection. This class cannot be inherited.
public ref class DesignerDataColumn sealedpublic sealed class DesignerDataColumntype DesignerDataColumn = classPublic NotInheritable Class DesignerDataColumn- Inheritance
-
DesignerDataColumn
Remarks
The DesignerDataColumn class is one of several types that represent the schema of a data store at design-time. These schema items are made available to controls by designers implementing the IDataEnvironment interface. Controls access schema objects by calling the GetConnectionSchema method of the interface.
Constructors
| DesignerDataColumn(String, DbType, Object, Boolean, Boolean, Boolean, Int32, Int32, Int32) |
Initializes a new instance of the DesignerDataColumn class with the specified values. |
| DesignerDataColumn(String, DbType, Object) |
Initializes a new instance of the DesignerDataColumn class with the specified name, data type, and default value. |
| DesignerDataColumn(String, DbType) |
Initializes a new instance of the DesignerDataColumn class with the specified name and data type. |
Properties
| DataType |
Gets the data type of the data column. |
| DefaultValue |
Gets the default value of the data column. |
| Identity |
Gets a value indicating whether the data column is an identity column for the data row. |
| Length |
Gets the length in bytes of the data column. |
| Name |
Gets the name of the column in the data store. |
| Nullable |
Gets a value indicating whether the column can be null in the data store. |
| Precision |
Gets the number of digits in a numeric data column. |
| PrimaryKey |
Gets a value indicating whether the column is part of the table's primary key. |
| Scale |
Gets the number of digits to the right of the decimal point in a numeric column. |
Methods
| Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
| GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
| GetType() |
Gets the Type of the current instance. (Inherited from Object) |
| MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
| ToString() |
Returns a string that represents the current object. (Inherited from Object) |
