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);
}
});
}
/// <summary>
/// Create child controls
/// </summary>
protected override void CreateChildControls()
{
// Retrieve field properties
fieldProperties = FieldManagement<ImageFieldProperties>.GetFieldProperties(this.Field);
if (string.IsNullOrEmpty(fieldProperties.WebId))
{
fieldProperties.WebId = SPContext.Current.Web.ID.ToString();
}
if (ControlMode != SPControlMode.Display)
{
base.CreateChildControls();
BindControls();
if (ddlExistingPicture != null)
{
if (!Page.IsPostBack)
{
// Retrieve all pictures in order to add them in the drop down list
using (SPWeb web = SPContext.Current.Site.OpenWeb(new Guid(fieldProperties.WebId)))
{
if (!fieldProperties.PictureLibraryId.IsGuid())
{
var folder = web.Folders[fieldProperties.PictureLibraryId];
var list = web.Lists[folder.ParentListId];
fieldProperties.PictureLibraryId = list.ID.ToString();
}
SPList pictureLibrary = web.Lists[new Guid(fieldProperties.PictureLibraryId)];
SPListItemCollection pictures = pictureLibrary.GetItems(new SPQuery { Query = "<Query />" });
if (fieldProperties.DefaultPictureId != -1)
{
ddlExistingPicture.Items.Add(new ListItem(SPUtility.GetLocalizedString("$Resources:Default", "ImageField", (uint)SPContext.Current.Web.Locale.LCID), fieldProperties.DefaultPictureId.ToString()));
}
ddlExistingPicture.Items.Add(new ListItem(SPUtility.GetLocalizedString("$Resources:None", "ImageField", (uint)SPContext.Current.Web.Locale.LCID), "-1"));
imgExistingPicture.Visible = false;
foreach (SPListItem picture in pictures)
{
if (!picture.Name.StartsWith("dv_") || picture.Name.Length != 39)
{
string pictureUrl = Utility.GetRelativeUrl(picture["EncodedAbsThumbnailUrl"].ToString());
ListItem pictureItem = new ListItem(picture.Name, picture.ID.ToString());
// If the picture is the one referenced by the field
if (this.ControlMode == SPControlMode.Edit && this.ItemFieldValue != null && new FieldContent(this.ItemFieldValue.ToString()).Thumbnail == pictureUrl)
{
pictureItem.Selected = true;
imgExistingPicture.Visible = true;
imgExistingPicture.ImageUrl = pictureUrl;
}
ddlExistingPicture.Items.Add(pictureItem);
}
}
if (imgExistingPicture.Visible == false)
{
ddlExistingPicture_OnSelectedIndexChanged(null, null);
}
}
}
ddlExistingPicture.SelectedIndexChanged += ddlExistingPicture_OnSelectedIndexChanged;
}
}
}
/// <summary>
/// Create child controls
/// </summary>
protected override void CreateChildControls()
{
// Retrieve field properties
fieldProperties = FieldManagement <ImageFieldProperties> .GetFieldProperties(this.Field);
if (string.IsNullOrEmpty(fieldProperties.WebId))
{
fieldProperties.WebId = SPContext.Current.Web.ID.ToString();
}
if (ControlMode != SPControlMode.Display)
{
base.CreateChildControls();
BindControls();
if (ddlExistingPicture != null)
{
if (!Page.IsPostBack)
{
// Retrieve all pictures in order to add them in the drop down list
using (SPWeb web = SPContext.Current.Site.OpenWeb(new Guid(fieldProperties.WebId)))
{
if (!fieldProperties.PictureLibraryId.IsGuid())
{
var folder = web.Folders[fieldProperties.PictureLibraryId];
var list = web.Lists[folder.ParentListId];
fieldProperties.PictureLibraryId = list.ID.ToString();
}
SPList pictureLibrary = web.Lists[new Guid(fieldProperties.PictureLibraryId)];
SPListItemCollection pictures = pictureLibrary.GetItems(new SPQuery {
Query = "<Query />"
});
if (fieldProperties.DefaultPictureId != -1)
{
ddlExistingPicture.Items.Add(new ListItem(SPUtility.GetLocalizedString("$Resources:Default", "ImageField", (uint)SPContext.Current.Web.Locale.LCID), fieldProperties.DefaultPictureId.ToString()));
}
ddlExistingPicture.Items.Add(new ListItem(SPUtility.GetLocalizedString("$Resources:None", "ImageField", (uint)SPContext.Current.Web.Locale.LCID), "-1"));
imgExistingPicture.Visible = false;
foreach (SPListItem picture in pictures)
{
if (!picture.Name.StartsWith("dv_") || picture.Name.Length != 39)
{
string pictureUrl = Utility.GetRelativeUrl(picture["EncodedAbsThumbnailUrl"].ToString());
ListItem pictureItem = new ListItem(picture.Name, picture.ID.ToString());
// If the picture is the one referenced by the field
if (this.ControlMode == SPControlMode.Edit && this.ItemFieldValue != null && new FieldContent(this.ItemFieldValue.ToString()).Thumbnail == pictureUrl)
{
pictureItem.Selected = true;
imgExistingPicture.Visible = true;
imgExistingPicture.ImageUrl = pictureUrl;
}
ddlExistingPicture.Items.Add(pictureItem);
}
}
if (imgExistingPicture.Visible == false)
{
ddlExistingPicture_OnSelectedIndexChanged(null, null);
}
}
}
ddlExistingPicture.SelectedIndexChanged += ddlExistingPicture_OnSelectedIndexChanged;
}
}
}
public void InitializeWithField(SPField field)
{
// Retrieves field properties
fieldProperties = FieldManagement<ImageFieldProperties>.GetFieldProperties(field);
}
