Prevent User Interaction on Export

[John S.]

Hello,

I am exporting a PDF in code (not using the web viewer) and would like to prevent the user from interaction with the rest of the side until the Open/Save dialog prompt. Does anyone know if this can be done. And if so, how?


Thanks,
John

[Janus Pedersen]

Hi John Stewart
Yes I can be done.

	/// <summary>
	/ / / This method is used to provide a report to deliver a stream
	/ / / Eg. Page.Response.OutputStream could be the recipient of this
	/ / / Remember to set the mime type Page.Response.ContentType = "application / pdf";
	/// </summary>
	/ / / <param Name="report"> Object containing the report you want to be saved </ param>
	/ / / <param Name="output"> A stream containing the report as a PDF </ param>
	public static void SaveReportAsPDF(Telerik.Reporting.Report report, Stream output)
	{
	string mimeType;
	string extension;
	Encoding encoding;
	var reportBytes = ReportProcessor.Render("PDF", report, null, out mimeType, out extension, out encoding);
	output.Write(reportBytes, 0, reportBytes.Length);
	}

Can be used in Page_Load as

	var report = new DokumenterRap (); / / Creates new report type document
	Response.ContentType = "application / pdf"; / / Sets as pdf mimetype for IE to open the PDF file
	ReportTools.SaveReportAsPDF (report, Response.OutputStream); / / Creates a stream of PDF repport
	Response.Flush (); / / Provides the stream is flushed.

 

Regards,

Janus S. Andersen

Denmark

[John S.]

Hello Janus,

My problem is not exporting the document. My problem is .... as the user is waiting for the report (which may sometime take 2-30 seconds) I don't want them to be able to interact with the website (click the export button again is my biggest concern). Perhaps I am mistaken, but I don't think what you offered will do that.

Thanks,
John

[Janus Pedersen]

Hi John
I see. No the code is just for the Expert.

If you call a new page and the new page have to panels. one to make the PDF and one to show a text that state "pls. Wait for the PDF to be created this will take from 30 sekund to 3 min". In your code you store a session variabel to keep the info if this user has stated the PDF. Just store the time the PDF was started. I think that will do the job.

in the ASPx file put in this for one of the panel, and false for the panel with the text. 

ShowContentDuringLoad="false"

Hint: You can use the Modal="true"

Regards,
Janus S. Andersen
 
Denmark