Spread Windows Forms 11.0 Product Documentation
IsExcelStream(Stream) Method
Example 


FarPoint.Win.Spread Assembly > FarPoint.Win.Spread Namespace > FpSpread Class > IsExcelStream Method : IsExcelStream(Stream) Method
Stream
Opens the specified file and determines whether it meets the minimal requirements to be considered an Excel-compatible stream.
Syntax
'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);

}
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
See Also

Reference

FpSpread Class
FpSpread Members
Overload List