SizeAttribute.Size Property
Gets the size of the database column which the member’s data is stored in.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v24.2.dll
NuGet Package: DevExpress.Xpo
#Declaration
#Property Value
Type | Description |
---|---|
Int32 | An integer value which specifies the maximum number of characters that can be stored. |
#Remarks
The current version of XPO only supports size definitions for the persistent properties or fields of string data types. If the SizeAttribute isn’t applied to a member, the size of the database column which the member’s data is stored in is specified by the SizeAttribute.DefaultStringMappingFieldSize value.
#Example
The following example applies the SizeAttribute to the FullName and Background properties. The maximum number of characters that can be stored in a database column which the FullName property is mapped to is 128. As for the Background property the unlimited size of the column it is mapped to is specified.
using DevExpress.Xpo;
class Customer : XPObject {
private string fullName;
private string background;
[Size(128)]
public string FullName {
get { return fullName; }
set { SetPropertyValue<string>(nameof(FullName), ref fullName, value); }
}
[Size(SizeAttribute.Unlimited)]
public string Background {
get { return background; }
set { SetPropertyValue<string>(nameof(Background), ref background, value); }
}
}