Spread Windows Forms 9.0 Product Documentation
IsExcelFile(String,ExcelWorkbookType,Boolean) Method
Example 


Path and name of file
Returns the type of Excel workbook
Returns true the file is encrypted; false otherwise
Opens the specified file and determines whether it meets the minimal requirements to be considered a structured storage file containing an Excel workbook.
Syntax
'Declaration
 
Public Overloads Function IsExcelFile( _
   ByVal fileName As String, _
   ByRef workbookType As ExcelWorkbookType, _
   ByRef isEncrypt As Boolean _
) As Boolean
'Usage
 
Dim instance As FpSpread
Dim fileName As String
Dim workbookType As ExcelWorkbookType
Dim isEncrypt As Boolean
Dim value As Boolean
 
value = instance.IsExcelFile(fileName, workbookType, isEncrypt)
public bool IsExcelFile( 
   string fileName,
   ref ExcelWorkbookType workbookType,
   out bool isEncrypt
)

Parameters

fileName
Path and name of file
workbookType
Returns the type of Excel workbook
isEncrypt
Returns true the file is encrypted; false otherwise
Exceptions
ExceptionDescription
System.IO.FileNotFoundExceptionSpecified file is not found
System.ArgumentNullExceptionNo file name is specified (or specified file name is null)
System.ArgumentExceptionNo file name is specified (or specified file name is empty)
Example
This example uses the IsExcelFile method.
FarPoint.Excel.ExcelWorkbookType en;
            en = FarPoint.Excel.ExcelWorkbookType.OOXML;
            bool isE;
            string s = "c:\\book1.xlsx";
            bool b = fpSpread1.IsExcelFile(s, ref en, out isE);
            listBox1.Items.Add(b);
            if (b)
            {
                fpSpread1.OpenExcel(s, "Test");
            }
Dim isE As Boolean
        Dim s As String = "c:\book1.xlsx"
        Dim b As Boolean = FpSpread1.IsExcelFile(s, FarPoint.Excel.ExcelWorkbookType.OOXML, isE)
        ListBox1.Items.Add(b)
        If (b) Then
            FpSpread1.OpenExcel(s, "Test")
        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

See Also

Reference

FpSpread Class
FpSpread Members
Overload List

 

 


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