READ Function (BigText)

Streams a BigText object that is stored as a BLOB in a table to a BigText variable.

Syntax

  
[Ok := ] BigText.READ(InStream)  

Parameters

BigText
Type: BigText

The BigText variable into which you stream the BLOB.

InStream
Type: InStream

The InStream object type that you use to stream a BLOB to a BigText variable.

Property Value/Return Value

Type: Boolean

true if the read transaction was successful; otherwise, false.

Remarks

To delete the content in a BigText variable, use the CLEAR function.

CLEAR(BigText)  

Example

This example shows how to stream a BigText that is stored as a BLOB in a table to a BigText variable.

This example requires that you define the following variables.

Variable	DataType	Subtype
Bstr	BigText	Not applicable
EmployeeRec	Record	Employee
Istream	InStream	Not applicable

EmployeeRec.FIND('-');  
EmployeeRec.CALCFIELDS(Picture);  
EmployeeRec.Picture.CREATEINSTREAM(Istream);  
Bstr.READ(Istream);  

Use the CALCFIELDS Function (Record) to calculate the BlobField. A BlobField is a binary large object (maximum size 2 GB) and must be calculated if you want to use it in C/AL or display it in the application.

See Also

BigText Data Type