/// <summary>
/// This method handles the command event (callback) initiated by a delete button control on the page.
/// The id of the tag to delete is passed from the page as the command argument.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="args">The <see cref="System.Web.UI.WebControls.CommandEventArgs"/> instance containing the event data.</param>
protected void DeleteTag(object sender, CommandEventArgs args)
{
Guid targetId = new Guid((string)args.CommandArgument);
using (TaskrAdminProxy service = new TaskrAdminProxy())
{
try
{
if (service.DeleteTag(targetId))
{
BindTagList();
new StatusPresenter().Success("Tag deleted.");
}
else
{
new StatusPresenter().Error("Could not delete tag.");
}
}
catch (FaultException<NotAuthorizedDetail> fault)
{
new StatusPresenter().Error(fault.Message);
}
catch (Exception exception)
{
if (logger.IsErrorEnabled)
{
logger.Error("An error occurred while trying to delete a tag.", exception);
}
new StatusPresenter().Error("An error occurred while trying to delete the tag.");
return;
}
}
}
private void BindTagList()
{
IList<TagDTO> tags = new List<TagDTO>();
using (TaskrAdminProxy service = new TaskrAdminProxy())
{
tags = service.ListTags();
}
foreach (TagDTO tag in tags)
{
TagList.Items.Add(new ListItem(tag.Label, tag.Id.ToString()));
}
}
/// <summary>
/// This method handles the command event (callback) that initiates the save of a new tag.
/// The method gets user input from the form on the page and attempts to save the tag through the admin service.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="args">The <see cref="CommandEventArgs"/> instance containing the event data.</param>
protected void SaveTag(object sender, CommandEventArgs args)
{
if (String.IsNullOrEmpty(TagField.Text))
{
return;
}
TagDTO tag = new TagDTO();
tag.Label = TagField.Text;
using (TaskrAdminProxy service = new TaskrAdminProxy())
{
try
{
service.SaveTag(tag);
new StatusPresenter().Success(string.Format("Created {0} tag.", tag.Label));
BindTagList();
ResetForm();
}
catch (FaultException<NotAuthorizedDetail> fault)
{
new StatusPresenter().Error(fault.Message);
return;
}
catch (Exception exception)
{
if (logger.IsErrorEnabled)
{
logger.Error("An error occurred while saving a tag.", exception);
}
new StatusPresenter().Error("An unknown error occurred. Please try again.");
return;
}
}
}
/// <summary>
/// This method retrieves the list of existing tags and binds that list as the
/// datasource of the grid control that displays them on the page.
/// </summary>
private void BindTagList()
{
IList<TagDTO> tags = new List<TagDTO>();
using (TaskrAdminProxy service = new TaskrAdminProxy())
{
try
{
tags = service.ListTags();
}
catch (FaultException<NotAuthorizedDetail> fault)
{
new StatusPresenter().Error(fault.Message);
}
catch (Exception exception)
{
if (logger.IsErrorEnabled)
{
logger.Error("An error occurred while retrieving the list of tags.", exception);
}
new StatusPresenter().Error("A problem occurred while retrieving the list of tags.");
return;
}
finally
{
TagList.DataSource = tags;
TagList.DataBind();
}
}
}
