Closes the file opened by dfropen. This function must be called after a successful call (without error) to dfropen.
DFRClose()
Type Returned:
Numeric
Objects: Procedure, Transaction, Web Panel, Data Provider
Generators: .NET, .NET Framework, Java, Ruby (up to GeneXus X Evolution 3)
This function may return some of the following values:
| Value |
Result |
Description |
| 0 |
Successful operation |
The file has been read. |
| -1 |
Wrong sequence |
It occurs when this function is called before calling the DFROpen function, or when the call to DFROpen returned a value other than zero (error). |
Samples
For this example, the parameter field separator is not required.
&Text = ""
&i = dfropen( "Test.txt",1024,,"")
If &I = 0
Do while dfrnext( ) = 0
&i = dfrgtxt(&Line) // The length of the line is given by the size of the variable.
&Text = &Text + Newline() + &Line
EndDo
&i = dfrclose( )
else
&Text = "Could not open file"
EndIf
Delimited ASCII files functions