IDtExcelProviderEx.File

Syntax

File: String;

Description

The File property determines the entire name of the data provider file.

Comments

The name of the sheet, on which data is located, is determined by the IDtExcelProviderEx.Sheet property.

Example

Executing the example requires the C:\Data.xlsx file.

Add a link to the Dt system assembly.

Fragment of the C:\Data.xlsx file for which the example is written

Sub UserProc;
Var
    ExcelProviderEx: IDtExcelProviderEx;
    Fields: IDtFieldDefinitions;
    Field: IDtFieldDefinition;
    FieldName, Val: String;
    v: Array;
    i: Integer;
    s: double;
    rez: boolean;
Begin
    ExcelProviderEx := New DtExcelProviderEx.Create;
    ExcelProviderEx.File := "C:\Data.xlsx";
    ExcelProviderEx.Sheet := "Sheet1";
    ExcelProviderEx.HasHeader := True;
    ExcelProviderEx.HeaderRow := 0;
    ExcelProviderEx.AutoFillFieldsMode := DtAutoFillFieldsMode.DataRow;
    ExcelProviderEx.TypeGuessRows := 5;
    ExcelProviderEx.Format := "XLSX";
    ExcelProviderEx.DataRow := 1;
    ExcelProviderEx.Open;
    Fields := ExcelProviderEx.Fields;
    Debug.WriteLine("Number of fields: " + Fields.Count.ToString);
    FieldName := "Field names: ";

    // Create a row with field names
    For Each Field In Fields Do
        FieldName := FieldName + Field.Name + "; "
    End For;
    Debug.WriteLine(FieldName);
    Debug.WriteLine("Data:");
    While Not ExcelProviderEx.Eof Do
        Val := "";
        ExcelProviderEx.Fetch(v);
        // Create a row with data
        For i := 0 To v.Length - 1 Do
            rez := CultureInfo.Current.TryParseDouble(v[i], s);
            If Not rez Then
                val := val + v[i] + "; ";
            Else
                val := val + s.ToString + "; ";
            End If;
        End For;
        Debug.WriteLine(val);
    End While;
    ExcelProviderEx.Close;
End Sub UserProc;

After executing the example the console window displays the data read from the specified file.

See also:

IDtExcelProviderEx