Question

I need to serialize a report design. This is the scenario:

The app has base reports, let’s say “Sales Report” with a set of pre-defined columns and design, like the corp. logo in the header. The users needs to have the ability to change that layout adding, for example, a footer with the office address, or page numbers. For doing that they need to edit the report, enter the designer and add/change what they need. This changed report layout needs to be serialized to be stored in the database for that user, so the next time, the user opens that report, using that design.

Makes sense?

Answer 1

Here’s a simplified version of how I do this:

XtraReport customReport;
customReport = new MyXtraReport();
byte[] layout = LoadCustomLayoutFromDB();
if (layout != null) {
    using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(layout)) {
        customReport.LoadLayout(memoryStream);
    }
}

using (XRDesignFormEx designer = new XRDesignFormEx()) {
    MySaveCommandHandler customCommands = new MySaveCommandHandler(designer.DesignPanel);
    designer.DesignPanel.AddCommandHandler(customCommands);
    designer.OpenReport(customReport);
    designer.ShowDialog(this);
    if (customCommands.ChangesSaved)
        SaveCustomLayoutToDB(customCommands.Layout);
}

Inside MySaveCommandHandler class:

public virtual void HandleCommand(ReportCommand command, object[] args, ref bool handled) {
    if (command != ReportCommand.SaveFileAs && command != ReportCommand.SaveFileAs)
        return;

    using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream()) {
        panel.Report.SaveLayout(memoryStream);
        this.layout = memoryStream.ToArray();
        changesSaved = true;
    }

    panel.ReportState = ReportState.Saved;
    handled = true;
}