IsExcelStream(Stream) Method

Opens the specified file and determines whether it meets the minimal requirements to be considered an Excel-compatible stream.

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Function IsExcelStream( _
   ByVal stream As Stream _
) As Boolean

'Usage
 
Dim instance As FpSpread
Dim stream As Stream
Dim value As Boolean
 
value = instance.IsExcelStream(stream)

public bool IsExcelStream( 
   Stream stream
)

Parameters

stream: Stream

Return Value

Boolean: true if it is an Excel stream; false otherwise

Example

This example opens an Excel file if the condition is met.

string f;

f = "D:\\pic.xls";

System.IO.FileStream s = new System.IO.FileStream(f, IO.FileMode.Open, IO.FileAccess.ReadWrite);

bool b = fpSpread1.IsExcelStream(s);

if (b == true)

{
     
fpSpread1.OpenExcel(s);

}

Visual Basic

Dim f As String

f = "D:\pic.xls"

Dim s As New System.IO.FileStream(f, IO.FileMode.Open, IO.FileAccess.ReadWrite)

Dim b As Boolean = FpSpread1.IsExcelStream(s)

If b = True Then
     
FpSpread1.OpenExcel(s)

End If

Requirements

Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows Server 2012 R2, Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10

Reference

FpSpread Class
FpSpread Members
Overload List