Spread Windows Forms 7.0 Product Documentation
IsExcelStream(Stream) Method
See Also  Example Support Options
FarPoint.Win.Spread Assembly > FarPoint.Win.Spread Namespace > FpSpread Class > IsExcelStream Method : IsExcelStream(Stream) Method


stream
Stream

Glossary Item Box

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

Syntax

Visual Basic (Declaration) 
Public Overloads Function IsExcelStream( _
   ByVal stream As Stream _
) As Boolean
Visual Basic (Usage)Copy Code
Dim instance As FpSpread
Dim stream As Stream
Dim value As Boolean
 
value = instance.IsExcelStream(stream)
C# 
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.
C#Copy Code
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 BasicCopy Code
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 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8

See Also

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