public static bool ExecuteSimpleContentRetreival(
IWin32Window dialogOwner, ContentSourceInfo contentSourceInfo, string url, ref string title, ref string newContent)
{
try
{
// if there is progress requested then just do it on the main UI thread
if (contentSourceInfo.UrlContentSourceRequiresProgress)
{
// create the progress dialog and the async operation
UrlContentRetreivalWithProgressDialog progressDialog = new UrlContentRetreivalWithProgressDialog(contentSourceInfo);
progressDialog.CreateControl();
SimpleUrlContentRetreivalAsyncOperation asyncOperation = new SimpleUrlContentRetreivalAsyncOperation(progressDialog, contentSourceInfo.Instance as ContentSource, url, title);
// execute and retreive results
if (ExecuteWithProgress(dialogOwner, progressDialog, asyncOperation, contentSourceInfo))
{
title = asyncOperation.Title;
newContent = asyncOperation.NewContent;
return true;
}
else
{
return false;
}
}
else
{
try
{
(contentSourceInfo.Instance as ContentSource).CreateContentFromUrl(url, ref title, ref newContent);
return true;
}
catch (Exception ex)
{
ContentSourceManager.DisplayContentRetreivalError(dialogOwner, ex, contentSourceInfo);
return false;
}
}
}
catch (Exception ex)
{
Trace.Fail("Unexpected exception executing network operation for content source: " + ex.ToString());
return false;
}
}
public static bool ExecuteSimpleContentRetreival(
IWin32Window dialogOwner, ContentSourceInfo contentSourceInfo, string url, ref string title, ref string newContent)
{
try
{
// if there is progress requested then just do it on the main UI thread
if (contentSourceInfo.UrlContentSourceRequiresProgress)
{
// create the progress dialog and the async operation
UrlContentRetreivalWithProgressDialog progressDialog = new UrlContentRetreivalWithProgressDialog(contentSourceInfo);
progressDialog.CreateControl();
SimpleUrlContentRetreivalAsyncOperation asyncOperation = new SimpleUrlContentRetreivalAsyncOperation(progressDialog, contentSourceInfo.Instance as ContentSource, url, title);
// execute and retrieve results
if (ExecuteWithProgress(dialogOwner, progressDialog, asyncOperation, contentSourceInfo))
{
title = asyncOperation.Title;
newContent = asyncOperation.NewContent;
return(true);
}
else
{
return(false);
}
}
else
{
try
{
(contentSourceInfo.Instance as ContentSource).CreateContentFromUrl(url, ref title, ref newContent);
return(true);
}
catch (Exception ex)
{
ContentSourceManager.DisplayContentRetreivalError(dialogOwner, ex, contentSourceInfo);
return(false);
}
}
}
catch (Exception ex)
{
Trace.Fail("Unexpected exception executing network operation for content source: " + ex.ToString());
return(false);
}
}
private static bool ExecuteWithProgress(
IWin32Window dialogOwner,
UrlContentRetreivalWithProgressDialog progressDialog,
UrlContentRetreivalAsyncOperation asyncOperation,
ContentSourceInfo contentSourceInfo)
{
try
{
// show the progress dialog
using (progressDialog)
{
asyncOperation.Start();
progressDialog.ShowProgress(dialogOwner, asyncOperation);
}
// handle the result
if (asyncOperation.Error != null)
{
ContentSourceManager.DisplayContentRetreivalError(dialogOwner, asyncOperation.Error, contentSourceInfo);
return(false);
}
else if (asyncOperation.WasCancelled)
{
return(false);
}
else
{
return(true);
}
}
catch (Exception ex)
{
Trace.Fail("Unexpected exception executing network operation for content source: " + ex.ToString());
return(false);
}
}
private static bool ExecuteWithProgress(
IWin32Window dialogOwner,
UrlContentRetreivalWithProgressDialog progressDialog,
UrlContentRetreivalAsyncOperation asyncOperation,
ContentSourceInfo contentSourceInfo)
{
try
{
// show the progress dialog
using (progressDialog)
{
asyncOperation.Start();
progressDialog.ShowProgress(dialogOwner, asyncOperation);
}
// handle the result
if (asyncOperation.Error != null)
{
ContentSourceManager.DisplayContentRetreivalError(dialogOwner, asyncOperation.Error, contentSourceInfo);
return false;
}
else if (asyncOperation.WasCancelled)
{
return false;
}
else
{
return true;
}
}
catch (Exception ex)
{
Trace.Fail("Unexpected exception executing network operation for content source: " + ex.ToString());
return false;
}
}
