Class NullAndTrimStringConverter

Converter for string values. Based on settings, it can convert null and System.DBNull.Value values to empty string and trim string value. Values are converted in boht directions - when saving to database and also when returning from database.

The converter cannot be directly instantiated. Instead of that, there are predefined static instances ConvertNull, TrimString and ConvertNullAndTrimString.

Converter can be used for example to ensure, that value going into the database will be empty string if the column is set NOT NULL.

Inheritance
System.Object
NullAndTrimStringConverter
Implements
Namespace: Kros.KORM.Converter
Assembly: Kros.KORM.dll
Syntax
public class NullAndTrimStringConverter : IConverter

Fields

ConvertNull

Instance of the converter with settings: ConvertNullValue is true, TrimStringValue is false.

Declaration
public static readonly NullAndTrimStringConverter ConvertNull
Field Value
Type Description
NullAndTrimStringConverter

ConvertNullAndTrimString

Instance of the converter with settings: ConvertNullValue is true, TrimStringValue is true.

Declaration
public static readonly NullAndTrimStringConverter ConvertNullAndTrimString
Field Value
Type Description
NullAndTrimStringConverter

TrimString

Instance of the converter with settings: ConvertNullValue is false, TrimStringValue is true.

Declaration
public static readonly NullAndTrimStringConverter TrimString
Field Value
Type Description
NullAndTrimStringConverter

Properties

ConvertNullValue

If true, the values null and System.DBNull for database are converted to empty string.

Declaration
public bool ConvertNullValue { get; }
Property Value
Type Description
System.Boolean

TrimStringValue

If true and input value for database is string, it is trimmed (System.String.Trim).

Declaration
public bool TrimStringValue { get; }
Property Value
Type Description
System.Boolean

Methods

Convert(Object)

Declaration
public object Convert(object value)
Parameters
Type Name Description
System.Object value
Returns
Type Description
System.Object

ConvertBack(Object)

Converts value based on ConvertNullValue and TrimStringValue settings.

Declaration
public object ConvertBack(object value)
Parameters
Type Name Description
System.Object value

Value to convert.
Returns
Type Description
System.Object

Implements