public HttpResponseMessage DeletePage(FormDataCollection Form)
{
HttpResponseMessage httpResponseMessage = Request.CreateResponse(HttpStatusCode.OK, "Some problem in delete master form page.");
if (Form != null)
{
string PageNumber = Form["PageNumber"]?.ToString().Trim() ?? "";
string FolderName = Form["FolderName"]?.ToString().Trim() ?? "";
string result = DBHelper.GetFileFriendlyName(FolderName);
string workingDirectory = HttpContext.Current.Server.MapPath("~/" + RootFolderName + "/" + result);
if (Directory.Exists(workingDirectory))
{
using (RasterCodecs _codecs = new RasterCodecs())
{
RasterDefaults.DitheringMethod = RasterDitheringMethod.None;
ServiceHelper.SetLicense();
workingRepository = new DiskMasterFormsRepository(_codecs, workingDirectory);
var masterForm = workingRepository?.RootCategory?.MasterForms?.FirstOrDefault();
if (masterForm != null)
{
DiskMasterForm currentMasterForm = (DiskMasterForm)masterForm;
FormRecognitionAttributes attributes = currentMasterForm.ReadAttributes();
int currentPageIdx = Convert.ToInt32(PageNumber);
FormPages formPages = currentMasterForm.ReadFields();
RasterImage formImage = currentMasterForm.ReadForm();
//Delete page from master form attaributes
DeletePageFromMasterForm(currentPageIdx + 1, attributes); //page number here is 1 based
//Delete fields page
formPages.RemoveAt(currentPageIdx);
//Delete the page from the image
if (formImage.PageCount == 1)
{
formImage = null; //You cannot remove the only page from a rasterimage, an exception will occur
}
else
{
formImage.RemovePageAt(currentPageIdx + 1);
}
//We need to recreate the FormPages to ensure the page numbers are updated correctly
for (int i = 0; i < formPages.Count; i++)
{
FormPage currentPage = formPages[i];
FormPage newPage = new FormPage(i + 1, currentPage.DpiX, currentPage.DpiY);
newPage.AddRange(currentPage.GetRange(0, currentPage.Count));
formPages[i] = newPage;
}
//Write the updated masterform to disk. Delete it first just in case the entire image was deleted
DiskMasterFormsCategory parentCategory = (workingRepository.RootCategory) as DiskMasterFormsCategory;
parentCategory.DeleteMasterForm(currentMasterForm);
parentCategory.AddMasterForm(attributes, formPages, formImage);
httpResponseMessage = Request.CreateResponse(HttpStatusCode.OK, "Page deleted from master set sucessfully.");
DBHelper.UpdateTifPageCount(formPages.Count.ToString(), FolderName);
}
}
}
}
return(httpResponseMessage);
}