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) |
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 Basic | Copy 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 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
See Also
