DbSqlImageAccessor Constructor (GetConnectionCallback, Boolean, String, String, String, String, String, String)

public DbSqlImageAccessor(
	GetConnectionCallback getConnection,
	bool encryptSerializedState,
	string imageField,
	string primaryKeyFields,
	string fromClause,
	string whereClause,
	string orderByClause,
	string frameCountField
)

Public Sub New ( 
	getConnection As GetConnectionCallback,
	encryptSerializedState As Boolean,
	imageField As String,
	primaryKeyFields As String,
	fromClause As String,
	whereClause As String,
	orderByClause As String,
	frameCountField As String
)

Parameters

getConnection

Type: Atalasoft.Imaging.ImageSources.DataGetConnectionCallback
A delegate that can return connections to the database. This accessor must be able to be serialized, so make the delegate to a static method. If this accessor is used in an imagesoruce that is used in ASP.NET controls, then it will be serialized. This class creates SQL statements that use CTE from SQL Server, so the connection needs to be to a database that supports them.

encryptSerializedState

Type: SystemBoolean
True if the serialized state of the object will be encrypted. Please see documentation of sub-classes to see which members are encrypted.

imageField

Type: SystemString
The name of the image field in the data source (given by the fromClause). Can be an expression, but then an "as" with a field name must appear at the end of it.

primaryKeyFields

Type: SystemString
A comma separated list of the primary keys of the data source (given by the fromClause).

fromClause

Type: SystemString
The source of the data rows. This would normally be a table name, but it can be anything that can appear in the from clause of a SQL Select statement. It should not contain "from" at the beginning.

whereClause

Type: SystemString
A clause that can be used in a where clause of a SQL Select statement. It can be null, which means that you want all rows to be returned. It should not contain "where" at the beginning.

orderByClause

Type: SystemString
A clause that can be used in an order by clause. If it is null, the data set is ordered by the primary keys. The dataset must have a defined order. It should not contain "order by" at the beginning.

frameCountField

Type: SystemString
The name of the frameCount field in the data source (given by the fromClause. If it is null, the frame count will be determined by decoding the image stream.

Reference