public void OnSaveChange(SPField field, bool isNewField)
{
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (SPSite currentSite = new SPSite(SPContext.Current.Site.ID))
{
// Save field properties
ImageFieldProperties properties = new ImageFieldProperties
{
WebId = ddlWebs.SelectedValue,
PictureLibraryId = ddlPictureLibrary.SelectedValue,
FormatName = tbFormatName.Text,
Overwrite = cbOverwrite.Checked,
DefaultPictureId = fieldProperties == null ? -1 : fieldProperties.DefaultPictureId
};
if (!cbClearDefaultPicture.Checked)
{
if (fuDefaultPicture.HasFile)
{
// Get the posted file
HttpPostedFile file = fuDefaultPicture.PostedFile;
if (file.ContentLength > 0)
{
using (SPWeb web = currentSite.OpenWeb(new Guid(properties.WebId)))
{
SPList pictureLibrary = web.Lists[new Guid(properties.PictureLibraryId)];
string uploadedFileName = file.FileName.Substring(file.FileName.LastIndexOf("\\") + 1, file.FileName.LastIndexOf(".") - file.FileName.LastIndexOf("\\") - 1);
string uploadedFileExtension = file.FileName.Substring(file.FileName.LastIndexOf(".") + 1);
string pictureFileName = string.Format("dv_{0}.{1}", Guid.NewGuid().ToString("N"), uploadedFileExtension);
string fileUrl = SPUrlUtility.CombineUrl(pictureLibrary.RootFolder.ToString(), pictureFileName);
// Add the selected picture in the list
SPListItem pictureItem = web.Files.Add(fileUrl, file.InputStream, true).Item;
properties.DefaultPictureId = pictureItem.ID;
}
}
}
}
else
{
properties.DefaultPictureId = -1;
}
FieldManagement <ImageFieldProperties> .SaveProperties(properties);
}
});
}
public void InitializeWithField(SPField field)
{
// Retrieves field properties
fieldProperties = FieldManagement <ImageFieldProperties> .GetFieldProperties(field);
}