Methods of class Information

Any metadata can be obtained through the class Information with a set of static methods.

Below are the most frequently used class methods Information grouped by use.

Work with object properties (determination of value, utilization, etc., value)

GetPropValueByName

Assign: Get the value of a property of the data object for the property name

Settings:

• obj - data Object, the property value for which you want to
• propName - the property Name of a data object whose value you want to

Signature:

static public object GetPropValueByName(DataObject obj, string propName) 

SetPropValueByName

Assign: to Set the value property of a data object for the property name, value is string. When setting a property you are trying to convert a string value to a value of the appropriate type by calling the static method Parse(string) from the type.

Settings:

• obj - data Object, the property value of which is determined by this method
• propName - the property Name of a data object whose value is set by this method
• PropValue the value of the property of the data object that will be set by this method

Signature:

static public void SetPropValueByName(DataObject obj, string propName, string PropValue) 

SetPropValueByName

Assign: to Set the value property of a data object for the property name, the value is transferred timisoreana. If the type conversion fails, returns an error message.

Signature:

static public void SetPropValueByName(DataObject obj, string propName, object PropValue) 

TrimmedStringStorage

Assign: to Trim or string for this property.

Settings:

• tp - type data object
• propName - the property Name of the data object

Signature:

static public bool TrimmedStringStorage(System.Type tp, string propname) 

IsStoredProperty

Assign: if Stored property

Settings:

• type - .Net class type of the data object
• propName - the property name

Signature:

static public bool IsStoredProperty(Type type, string propName) 

GetPropertyNotNull

Assign: Check if for the specified .Net-properties attribute NotNullAttribute

Settings:

• type - .Net class type of the data object
• property - the property name

The result is: true if installed, false otherwise

Signature:

static public bool GetPropertyNotNull(System.Type type, string property) 

GetPropertyStrLen

Assign: Get the specified .Net-properties attribute StrLenAttribute.

Settings:

• type - .Net class type of the data object
• property - the property name

The result is: value of the set attribute (-1 if not set)

Signature:

static public int GetPropertyStrLen(System.Type type, string property) 

GetPropertyType

Assign: To .Net-type properties of the class of the data object for the property name

Settings:

• declarationType - .Net class type of the data object
• propname - the property name

Signature:

static public Type GetPropertyType(System.Type declarationType, string propname) 

CheckPropertyExist

Assign: to Check whether such a property in the specified type

Settings:

• type - .Net class type of the data object
• propName - the property Name

The result is:

• true - the property is,
• false - no

Signature:

static public bool CheckPropertyExist(System.Type type, string propName)

ExtractPropertyName

Appointment_: Retrieval of properties within the current class

Settings:

• propertyExpression - Lambda expression for property access
• TSource - Type class source

The result is: the name of the property (single!)

Signature:

public static string ExtractPropertyName<TSource>(Expression<Func<TSource>> propertyExpression)

Cm. Access to own object attributes and attributes of related objects.

ExtractPropertyName

Assign: Explicit extraction of properties by type

Settings:

• propertyExpression - Lambda expression for property access
• TSource - Type class source

The result is: the name of the property (single!)

Signature:

public static string ExtractPropertyName<TSource>(Expression<Func<TSource, object>> propertyExpression)

ExtractPropertyPath

Assign: a Recursive method to get the path for the property specified via a nested lambda.A lambda expression can contain nested appeal to the masters.

Settings:

• TProperty - Type properties
• propertyExpression - Lambda expression for property access

The result is: the Full path to a property (separation point)

Signature:

public static string ExtractPropertyPath<TProperty>(Expression<Func<TProperty>> propertyExpression)

ExtractPropertyPath

Assign: a Recursive method to get the path for the property specified via a nested lambda.A lambda expression can contain nested appeal to the masters.

Settings:

• propertyExpression - Lambda expression for property access
• TSource - Type class source

The result is: the Full path to a property (separation point)

Signature:

public static string ExtractPropertyPath<TSource>(Expression<Func<TSource, object>> propertyExpression)

ExtractPropertyInfo

Assign: Explicit extraction of properties by type

Settings:

• propertyExpression - Lambda expression for property access
• TSource - Type class source

The result is: PropertyInfo properties (the latest)

Signature:

public static PropertyInfo ExtractPropertyInfo<TSource>(Expression<Func<TSource, object>> propertyExpression) 

Work with views

GetView

Assign: to Get an idea on his name, and the class of the data object

Signature:

static public View GetView(string ViewName, System.Type type) 

GetCompatibleView

Assign: to Get an idea, “compatible” with the given classes. Looking for a common ancestor, then trying to get the specified performance. If the view is not found, returns null.

Settings:

• ViewName - the name of the view
• types - one-dimensional array types data classes

Signature:

static public View GetCompatibleView(string ViewName, System.Type[] types) 

AllViews

Assign: Get a list of names of views for the specified class of data object

Settings:

type - class data object

Return value: Array of strings containing the names of the views for the specified type

Signature:

static public string[] AllViews(System.Type type) 

AllViews

Assign: Get a list of the names of the General ideas for these classes. We are talking about a situation when forming an inheritance hierarchy classes have representation, which means that there is a set of representations common to a plurality of classes. Pointing to this method is a lot of classes, You will receive the names of their General ideas.

Signature:

static public string[] AllViews(params System.Type[] types) 

CheckViewForClasses

Assign: to Test whether the specified named view in all these classes. We are talking about a situation when forming an inheritance hierarchy classes have representation, which means that there is a set of representations common to a plurality of classes.

Signature:

static public bool CheckViewForClasses(string ViewName, params System.Type[] types) 

GetAllTypesFromView

Assign: Return a list of all instances of view types, including detaily.

Settings:

view - View

Return value: types List without duplicates

Signature:

public static List<Type> GetAllTypesFromView(View view) 

GetAllTypesFromView

Assign: Return a list of all instances of view types, including detaily and pseudometal.

Settings:

view - Extended view (pseudocatalase).

Return value: types List without duplicates

Signature:

public static List<Type> GetAllTypesFromView(ExtendedView view) 

Working with data objects

GetAlteredPropertyNames

Assign: to Compare two data object and return a list of distinguished .Net-properties. (Object or property with the attribute NotStoredпроверяться will not)

Settings:

• obj1 - 1-th data object
• obj2 - 2-y data object
• WithDetailsComparing with comparing dealova objects

Return value: the one-dimensional string array of property names

Signature:

static public string[] GetAlteredPropertyNames(DataObject obj1, DataObject obj2, bool WithDetailsComparing) 

GetAlteredProperyNames

Assign: Use the GetAlteredPropertyNames. Left for compatibility reasons(a mistake in a method name).

GetAlteredPropertyNamesWithNotStored

Assign: to Compare two data object and return a list of distinguished .Net-properties. (NotStored attributes are not ignored and is also checked along with the rest)

Settings:

• obj1 - 1-th data object
• obj2 - 2-y data object
• WithDetailsComparing with comparing dealova objects

Return value: the one-dimensional string array of property names

Signature:

static public string[] GetAlteredPropertyNamesWithNotStored(DataObject obj1, DataObject obj2, bool WithDetailsComparing) 

ContainsAlteredProps

Assign: to Compare two data object and return true if the objects differ

Signature:

 static public bool ContainsAlteredProps(DataObject obj1, DataObject obj2, bool WithDetailsComparing) 

CheckNotNullAttributes

Assign: Check for non-null values to NotNull .Net properties.

Settings:

dataObject - data object

Return value: returns null if no non-empty values, otherwise the one-dimensional string array with property names where the value is

Signature:

static public string[] CheckNotNullAttributes(DataObject dataObject) 

GetAllPropertyNames

Assign: Return all names .Net-properties for .Net class type of the data object

Settings:

type - .Net class type of the data object

Return value: the one-dimensional string array of property names

Signature:

static public string[] GetAllPropertyNames(System.Type type) 

Information about the generator of primary keys

GetKeyGeneratorType

Assign: Get the type of the key generator

Settings:

typeofdataobject - for what type

Signature:

static public System.Type GetKeyGeneratorType(System.Type typeofdataobject) 

the Names of storage objects

GetTypeStorageName

Assign: the name of the store for the type

Signature:

 static public string GetTypeStorageName(System.Type type) 

GetClassStorageName

Assign: to Obtain the name of the store .Net class type of the data object specified by the attribute ClassStorageAttribute.

Settings:

type - .Net class type of the data object

Return value: the name of the store in line

Signature:

static public string GetClassStorageName(System.Type type) 

GetPrimaryKeyStorageName

Assign: the name to store the primary key specified by the attribute PrimaryKeyStorageAttribute

Settings: type - .Net class type of the data object

Signature:

static public string GetPrimaryKeyStorageName(System.Type type) 

GetPropertyStorageName

Assign: to Obtain the name of the store .Net-properties set by the attribute PropertyStorageAttribute.

Signature:

static public string GetPropertyStorageName(System.Type type, string property, int index) 

A more detailed description of this method can be found in Information.GetPropertyStorageName.

the authentication object attributes

CheckAccessToAttribute

Assign: Checking rights to object attributes. The method is a wrapper for the method CheckAccessToAttribute class ICSSoft.STORMNET.RightManager and used to verify the rights in Get’erach computable properties of the DataObject. Processing of the masters is not subject to.

Settings:

• type - .Net class type of the data object
• propertyName - the property Name of the data object, which checks the rights.
• deniedAccessValue - the attribute Value in the absence of rights.

Signature:

public static bool CheckAccessToAttribute(Type type, string propertyName, out object deniedAccessValue) 

Working with images

GetImageForInstance

Assign: Return a picture object

Signature:

public static System.Drawing.Image GetImageForInstance(DataObject dobject) 

GetClassImage

Assign: to Return the picture to the class, set the attribute ClassImageFileAttribute.

Settings:

dataObjectType - data Object in this class

Return value: Image

Signature:

public static System.Drawing.Image GetClassImage(System.Type dataObjectType) 

GetClassImageProperty

Assign: Return property-the image specified by the attribute ClassImagePropertyAttribute

Signature:

public static string GetClassImageProperty(System.Type dataobjectType)