DataConnectionProperties Class

Provides support for the parsing and formatting of connection strings containing data connection properties, as well as for strongly typed property storage, custom attributes, and synonyms.

Inheritance Hierarchy

System.Object
  Microsoft.VisualStudio.Data.Framework.DataConnectionProperties

Namespace:  Microsoft.VisualStudio.Data.Framework
Assembly:  Microsoft.VisualStudio.Data.Framework (in Microsoft.VisualStudio.Data.Framework.dll)

Syntax

声明
Public MustInherit Class DataConnectionProperties _
    Implements IVsDataConnectionUIProperties, IVsDataConnectionProperties, IDictionary(Of String, Object),  _
    ICollection(Of KeyValuePair(Of String, Object)), IEnumerable(Of KeyValuePair(Of String, Object)),  _
    IEnumerable, ICustomTypeDescriptor, INotifyPropertyChanged

public abstract class DataConnectionProperties : IVsDataConnectionUIProperties, 
    IVsDataConnectionProperties, IDictionary<string, Object>, ICollection<KeyValuePair<string, Object>>, 
    IEnumerable<KeyValuePair<string, Object>>, IEnumerable, ICustomTypeDescriptor, 
    INotifyPropertyChanged

public ref class DataConnectionProperties abstract : IVsDataConnectionUIProperties, 
    IVsDataConnectionProperties, IDictionary<String^, Object^>, ICollection<KeyValuePair<String^, Object^>>, 
    IEnumerable<KeyValuePair<String^, Object^>>, IEnumerable, 
    ICustomTypeDescriptor, INotifyPropertyChanged

[<AbstractClass>]
type DataConnectionProperties =  
    class
        interface IVsDataConnectionUIProperties
        interface IVsDataConnectionProperties
        interface IDictionary<string, Object>
        interface ICollection<KeyValuePair<string, Object>>
        interface IEnumerable<KeyValuePair<string, Object>>
        interface IEnumerable
        interface ICustomTypeDescriptor
        interface INotifyPropertyChanged
    end

public abstract class DataConnectionProperties implements IVsDataConnectionUIProperties, IVsDataConnectionProperties, IDictionary<String, Object>, ICollection<KeyValuePair<String, Object>>, IEnumerable<KeyValuePair<String, Object>>, IEnumerable, ICustomTypeDescriptor, INotifyPropertyChanged

The DataConnectionProperties type exposes the following members.

Constructors

	Name	Description
	DataConnectionProperties()	Initializes a non-parameterized instance of the DataConnectionProperties class.
	DataConnectionProperties(IEqualityComparer<String>)	Initializes a parameterized instance of the DataConnectionProperties class that provides the ability to compare property names.
	DataConnectionProperties(IEqualityComparer<String>, Char, Char)	Initializes a parameterized instance of the DataConnectionProperties class that provides the ability to compare property names.

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Properties

	Name	Description
	Count	Gets the number of existing data connection properties.
	IsComplete	Gets a Boolean value indicating whether a given connection string is complete.
	IsExtensible	Gets or sets a Boolean value indicating whether the DDEX provider connection properties are extensible.
	Item	Gets or sets a value for a specified property of the DDEX provider.
	Keys	Gets a collection of the current property key names.
	OrderedProperties	Gets a collection of property names specifying a reasonable (or necessary) order for the properties when represented in string form.
	Values	Retrieves a collection of the current property values.

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Methods

	Name	Description
	Add(String, Object)	Adds a new property to the current connection properties collection.
	Add(String, Type, Object)	Adds a new property to the current connection properties collection.
	AddProperty(PropertyDescriptor, array<Attribute[])	Dynamically adds a new property to the collection of properties natively recognized by the current instance of the DataConnectionProperties class.
	AddProperty(String, Type, array<Attribute[])	Dynamically adds a new property to the collection of properties natively recognized by this data connection properties instance.
	Contains	Tests whether a specified property and its values are present in the current set of connection properties.
	ContainsKey	Tests whether a specified property is a member of the current set of connection properties.
	CopyTo	Copies the current set of connection properties and their values to the specified array, starting at the specified array index.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetKeyAsString	Formats a property key for placement in a connection string.
	GetProperties()	Retrieves the collection of descriptors of all currently known properties.
	GetProperties(array<Attribute[])	Retrieves the collection of descriptors of currently known properties that match a specified set of attributes.
	GetProperty	Retrieves the descriptor of a property with the specified property name.
	GetSynonyms	Retrieves an array list of synonyms for a specified property.
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GetValueAsString	Formats a property value for placement in a connection string.
	Initialize	Initializes the current DataConnectionProperties instance to its default state, and then sets each property in the specified dictionary.
	InitializeProperties	Initializes the set of natively recognized properties for the current DataConnectionProperties instance.
	InitializeSynonyms	Initializes the set of synonyms available for each natively recognized property in the current DataConnectionProperties instance.
	InitializeValue	Initializes the value of a specified connection property.
	InitializeValues	Initializes values for a specified set of properties, using a dictionary of name/value pairs.
	IsSensitive	Indicates whether a property contains sensitive information.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ModifyProperty	Modifies an existing property of which the current DataConnectionProperties instance is natively aware.
	OnPropertyChanged	Raises the PropertyChanged event.
	Parse	Disassembles the components of a connection string into a set of properties in the current DataConnectionProperties instance.
	ReadKeyFromString	Reads a property key name from a connection string starting at a specified index, and then updates the index to point to a position immediately following the property key name.
	ReadValueFromString	Reads a property value from a connection string starting at a specified index, converts it to the correct type, and updates the index to point to a position following the property name.
	Remove	Removes a property from the current connection property collection.
	RemoveProperty	Removes a natively recognized property from the current collection of properties.
	Reset()	Resets the values of connection properties to an initial state.
	Reset(String)	Removes the specified property from the current set of data connection properties.
	ResolveProperty	Looks up the specified property in the list of synonyms and optionally makes this property the primary name for the synonyms collection, if it is not already so.
	SetPropertySynonyms	Sets or clears the synonyms for the specified property.
	ShouldPersistProperty	Indicates whether a property should be persisted when building a connection string.
	ToDisplayString	Retrieves a string representation of the current set of data connection properties that are suitable for on-screen display.
	ToSafeString	Retrieves a string representation of the current set of data connection properties that excludes sensitive properties or properties that should not be persisted.
	ToString	Retrieves the default string representation of the current connection properties. (Overrides Object.ToString().)
	TryGetValue	Retrieves the value of the specified property.

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Events

	Name	Description
	PropertyChanged	Occurs on the occurrence of a change to a connection property.

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Explicit Interface Implementations

	Name	Description
	ICollection<KeyValuePair<String, Object>>.Add	Adds an element as a key/value pair to the current set of connection properties.
	ICollection<KeyValuePair<String, Object>>.Clear	Removes all elements from the current set of connection properties.
	ICustomTypeDescriptor.GetAttributes	Retrieves a collection of custom attributes for the specified object.
	ICustomTypeDescriptor.GetClassName	Retrieves the class name of the specified object.
	ICustomTypeDescriptor.GetComponentName	Retrieves the name of the specified object.
	ICustomTypeDescriptor.GetConverter	Retrieves a type converter for the specified object.
	ICustomTypeDescriptor.GetDefaultEvent	Retrieves the default event for the specified object.
	ICustomTypeDescriptor.GetDefaultProperty	Retrieves the default property for the specified object.
	ICustomTypeDescriptor.GetEditor	Retrieves an editor of the specified type for this object.
	IEnumerable<KeyValuePair<String, Object>>.GetEnumerator	Retrieves an IEnumerator<T> for the KeyValuePair<String, Object>.
	IEnumerable.GetEnumerator	Retrieves an IEnumerator.
	ICustomTypeDescriptor.GetEvents()	Retrieves the events for the specified instance of a component.
	ICustomTypeDescriptor.GetEvents(array<Attribute[])	Retrieves the events for this instance of a component, using the specified attribute array as a filter.
	ICustomTypeDescriptor.GetProperties()	Retrieves the properties for the specified instance of a component.
	ICustomTypeDescriptor.GetProperties(array<Attribute[])	Retrieves the properties for the specified instance of a component, using the attribute array as a filter.
	ICustomTypeDescriptor.GetPropertyOwner	Retrieves an object that contains the property described by the specified property descriptor.
	ICollection<KeyValuePair<String, Object>>.IsReadOnly	Gets a Boolean value indicating whether the current ICollection<T> instance is read-only.
	ICollection<KeyValuePair<String, Object>>.Remove	Removes the specified property from the current set of connection properties.

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Remarks

In the simplest case, a derived class should add properties to its class and place component attributes on these properties to customize their behavior. In the more advanced case, a derived class can override the parsing and formatting code, and dynamically change any of the properties based on specific actions, such as setting the value of a property.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

Microsoft.VisualStudio.Data.Framework Namespace