Samuele Locatelli
85 lines
3.5 KiB
C#
85 lines
3.5 KiB
C#
using DevExpress.XtraReports.UI;
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using System.ServiceModel;
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public class CustomReportStorageWebExtension : DevExpress.XtraReports.Web.Extensions.ReportStorageWebExtension
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{
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readonly string reportDirectory = "Reports";
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const string FileExtension = ".repx";
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public CustomReportStorageWebExtension()
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{
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if (!Directory.Exists(reportDirectory))
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{
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Directory.CreateDirectory(reportDirectory);
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}
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}
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public override bool CanSetData(string url)
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{
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// Determines whether a report with the specified URL can be saved.
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// Add custom logic that returns **false** for reports that should be read-only.
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// Return **true** if no valdation is required.
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// This method is called only for valid URLs (if the **IsValidUrl** method returns **true**).
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return true;
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}
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public override bool IsValidUrl(string url)
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{
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// Determines whether the URL passed to the current report storage is valid.
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// Implement your own logic to prohibit URLs that contain spaces or other specific characters.
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// Return **true** if no validation is required.
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return Path.GetFileName(url) == url;
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}
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public override byte[] GetData(string url)
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{
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// Uses a specified URL to return report layout data stored within a report storage medium.
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// This method is called if the **IsValidUrl** method returns **true**.
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// You can use the **GetData** method to process report parameters sent from the client
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// if the parameters are included in the report URL's query string.
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try
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{
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if (Directory.EnumerateFiles(reportDirectory).Select(Path.GetFileNameWithoutExtension).Contains(url))
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{
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return File.ReadAllBytes(Path.Combine(reportDirectory, url + FileExtension));
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}
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}
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catch (Exception)
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{
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throw new FaultException(new FaultReason("Could not get report data."), new FaultCode("Server"), "GetData");
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}
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throw new FaultException(new FaultReason(string.Format("Could not find report '{0}'.", url)), new FaultCode("Server"), "GetData");
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}
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public override Dictionary<string, string> GetUrls()
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{
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// Returns a dictionary that contains the report names (URLs) and display names.
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// The Report Designer uses this method to populate the Open Report and Save Report dialogs.
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return Directory.GetFiles(reportDirectory, "*" + FileExtension)
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.ToDictionary(x => Path.GetFileNameWithoutExtension(x));
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}
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public override void SetData(XtraReport report, string url)
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{
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// Saves the specified report to the report storage with the specified name
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// (saves existing reports only).
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var resolvedUrl = Path.GetFullPath(Path.Combine(reportDirectory, url + FileExtension));
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if (!resolvedUrl.StartsWith(Path.GetFullPath(reportDirectory) + Path.DirectorySeparatorChar))
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{
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throw new FaultException("Invalid report name.");
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}
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report.SaveLayoutToXml(resolvedUrl);
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}
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public override string SetNewData(XtraReport report, string defaultUrl)
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{
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// Allows you to validate and correct the specified name (URL).
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// This method also allows you to return the resulting name (URL),
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// and to save your report to a storage. The method is called only for new reports.
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SetData(report, defaultUrl);
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return defaultUrl;
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}
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} |