DataSetFieldSchema Class
Represents the structure, or schema, of a data field.
Assembly: System.Design (in System.Design.dll)
| Name | Description | |
|---|---|---|
 | DataSetFieldSchema(DataColumn^) | Initializes a new instance of the DataSetFieldSchema class using a specified DataColumn. |
| Name | Description | |
|---|---|---|
 | DataType | Gets the type of data stored in the data field. |
| Identity | Gets a value indicating whether the value of the data field automatically increments for each new row added to the table or view. |
| IsReadOnly | Gets a value indicating whether the DataColumn is read-only. |
| IsUnique | Gets a value indicating whether values in the data field are required to be unique. |
| Length | Gets a value indicating the size of data that can be stored in the data field. |
| Name | Gets the name of the data field. |
| Nullable | Gets a value indicating whether the data field can accept null values. |
| Precision | Gets the maximum number of digits used to represent a numerical value in the data field. |
| PrimaryKey | Gets a value indicating whether the data field is in the primary key for the containing table or view. |
| Scale | Gets the number of decimal places to which numerical values in the data field are resolved. |
| Name | Description | |
|---|---|---|
| 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() | |
| ToString() | Returns a string that represents the current object.(Inherited from Object.) |
Use the DataSetFieldSchema class to get the properties of a data field using a DataColumn. You can discover the structure of a data field by using the following properties in this class: DataType, IsReadOnly, Length, Name, and IsUnique. In addition, you can use the Identity property to determine if a data column is set for AutoIncrement, or the PrimaryKey property to determine if a data column is in the primary key.
The DataSetFieldSchema class is used by custom control designer components to provide information about a data field at design time.
To examine the components of data using a DataSet, use the following classes.
DataSetFieldSchema
Available since 2.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.