Evento di caricamento in GridDesktop

Evento di caricamento per GridDesktop

Il seguente codice di esempio illustra come utilizzare tipi di evento di caricamento per GridDesktop durante l’importazione di un file. Si prega di controllare il file di esempio Excel.

Il file è protetto da password, prima proviamo ad aprirlo con una password errata, quindi infine nell’evento FailLoadFile, utilizziamo una password corretta per aprirlo.

Codice di Esempio

 public partial class loadingevent : basicForm
    {  
  public loadingevent()
        {
            InitializeComponent();
            gridDesktop1.Width = 800;
            gridDesktop1.Height = 800;
            gridDesktop1.ShowImportMessage = false;
            this.gridDesktop1.FailLoadFile += GridDesktop1_FailLoadFile;
            this.gridDesktop1.FinishLoadFile += GridDesktop1_FinishLoadFile;
            this.gridDesktop1.FinishCalculate += GridDesktop1_FinishCalculate;
            this.gridDesktop1.BeforeLoadFile += GridDesktop1_BeforeLoadFile;
            this.gridDesktop1.BeforeCalculate += GridDesktop1_BeforeCalculate;
            gridDesktop1.ImportExcelFile(LoadingHelper.getTestFile("loading-event.xlsx"), "wrongpassword", null, true, true);
            this.Text = " load event test";
        }

        private void GridDesktop1_BeforeCalculate(object sender, Aspose.Cells.GridDesktop.WorkBookEvents args)
        {
            string value = this.gridDesktop1.GetActiveWorksheet().Cells["B5"].StringValue;
            this.gridDesktop1.GetActiveWorksheet().Cells["B5"].PutValue(value + " -> before calculate, \n");
        }

        private void GridDesktop1_BeforeLoadFile(object sender, Aspose.Cells.GridDesktop.WorkBookEvents args)
        {
            string value = this.gridDesktop1.GetActiveWorksheet().Cells["B5"].StringValue;
            this.gridDesktop1.GetActiveWorksheet().Cells["B5"].PutValue(value + " -> before loadfile, \n");
        }

        private void GridDesktop1_FinishCalculate(object sender, Aspose.Cells.GridDesktop.WorkBookEvents args)
        {
            string value = this.gridDesktop1.GetActiveWorksheet().Cells["B5"].StringValue;
            this.gridDesktop1.GetActiveWorksheet().Cells["B5"].PutValue(value + " -> finish calculate, \n");
        }

        private void GridDesktop1_FinishLoadFile(object sender, Aspose.Cells.GridDesktop.WorkBookEvents args)
        {
            string value = this.gridDesktop1.GetActiveWorksheet().Cells["B5"].StringValue;
            this.gridDesktop1.GetActiveWorksheet().Cells["B5"].PutValue(value + " -> finish loadfile, \n");
        }

        private void GridDesktop1_FailLoadFile(object sender, String s)
        {//try correct password
            MessageBox.Show("fail load the file "+s+",now we try another password");
            gridDesktop1.ImportExcelFile(LoadingHelper.getTestFile("loading-event.xlsx"), "pwd456", null, false, true);
        }
	}
}