Checking for file conflicts using the sync framework - c#

I have been trying to build a sort of an update mechanism using the Microsoft Sync framework which would check for changes in one folder(A) and update the same on the other(B). I have a problem where my sync always overwrites the file on the other folder(B). This happens when I set the ConflictResolutionPolicy to source wins or merge. I want the user to have the ability to say Yes overwrite or No skip. Probably like the windows dialog box when we are copying files and when there is a conflict between files of the same name. I would really appreciate it if someone could help me or would give me a lead to some documentation on how to get this dialog box functionality when there is a conflict between files.
This is what I do right now but I can't get it to do anything. There are files that are of the same name but different time-stamps which has to trigger a conflict but doesn't unfortunately in my case.
private void OnItemConflicting(object sender, ItemConflictingEventArgs args)
{
args.SetResolutionAction(ConflictResolutionAction.SaveConflict);
Console.WriteLine(" Conflict detected for item " + args.DestinationChange.ItemId.ToString());
}
private void OnItemConstraint(object sender, ItemConstraintEventArgs args)
{
args.SetResolutionAction(ConstraintConflictResolutionAction.RenameDestination);
ConstraintConflictResolutionAction.RenameDestination.ToString();
Console.WriteLine(" Constraint conflict detected" + args.DestinationChange.ItemId.ToString());
}

if you set the conflict resolution to source wins, then of course it will overwrite the destination.
displaying the dialog box is outside of the framework's scope already.
you can handle an event when a conflict fires or you can preview the changes before you sync. you can display or prompt the user for the options to resolve the conflict
both scenarios are covered in the documentation that gets installed with the SDK

Related

Visual Studio 2019 IntelliSense changed (how to get prior behavior?)

Since I switched to VS 2019 (from 2017) I am pretty sure I got a degraded IntelliSense experience. I looked for settings under Tools -> Options... but did not find anything helpful.
The matter is this: suppose I have a variable kvp that has a property Key, I could type "key.", scroll to the "Key" property (if this is not already selected) and then type ";" to complete the statement.
But this does not work anymore. Instead it now ignores what I selected and I get
key.;
The only way to get the selected property is to explicitly hit enter. Same when I type the first character(s) to select the desired option: when pressing ; it just leaves what I already typed and adds the ; immediately behind it, ignoring what I selected in the popup menu.
What happened and how do I get the proper behavior back?
I am using the Preview version but I already had a couple of updates and it does not improve so I guess it is by design or default behavior now.
Here's some of my code for Perry. It is just an example though, the problem (or what I regard to be a problem) occurs with any object variable.
private static void AddBlockNodes(TreeNode node, IDictionary<string, Block> blocks)
{
foreach (KeyValuePair<string, Block> kvp in blocks)
{
string name = kvp.Key;
Block block = kvp.Value;
TreeNode childNode = new TreeNode(name);
childNode.Tag = block;
node.Nodes.Add(childNode);
AddBlockNodes(childNode, block.Subblocks);
}
}
it just leaves what I already typed and adds the ; immediately behind
it, ignoring what I selected in the popup menu.What happened and how
do I get the proper behavior back?
It is quite an abnormal behavior and l have installed Visual Studio 16.6.0 Preview 2.1 and test your code in my side and it works well.
Type variable kvp. and then select property Key and it types as expected. I did not face missing property Key during the process.
You can try these steps to troubleshoot your issue:
Suggestion
1) reset all settings by Tools-->Import and Export Settings-->Reset all settings
2) close VS Instance, enter the project path and delete .vs hidden folder which stores some Intellisense settings, bin, obj folder and then restart your project again. I wonder if you migrate an old project into VS2019 preview version, I think you should complete this step.
3) disable any third party extensions if you have under Extensions-->Manage Extensions in case they cause this behavior.
4) delete all component caches under C:\Users\xxx\AppData\Local\Microsoft\VisualStudio\16.0_xxx(16.0 is VS2019)\ComponentModelCache
5) try to create a new project in VS2019 Preview version and test whether this issue persists in the new platform and if it works, I think it is an issue of your project itself. Or you can try to migrate your project into the new project.
Hope it could help you.

Spelling with textboxes and custom dictionaries slowing down my application in C# WPF

I am using a WPF TextBoxes inside my WinForm application for spell checking. Each time I create one, I load the same file in as a CustomDictionary. All has been fine until recently. Now, they take a long time to load, up to a second. Some forms have 30 or more, meaning delays of nearly half a minute. This seems to be the case Windows 10 (not Windows 8 as I originally posted). The application is running under DotNet 4.0, I have tried 4.5 and 4.6 (not 4.61) and all versions are slow.
I have seen sfaust’s question Spell check textbox in Win10 - Slow and am7zd’s answer. Thanks to these, I looked at the GLOBAL registry key in HKEY_CURRENT_USER\Software\Microsoft\Spelling\Dictionaries. I have 580 entries (after pruning out entries without matching files) and still things are slow.
At present, every time I create a TextBox and add a custom dictionary to it, a new entry seems to be generated in _GLOBAL_
Is there a better way of doing things than loading the custom dictionary in from file every time?
Is there a way of re-using the same entry in _GLOBAL_ every time instead of creating a new one?
Is there a clean way of clearing previous entries in GLOBAL created by my application and their matching .dic files when closing the application (or on restarting it)?
I could clear _GLOBAL_ completely each time I start my application. This brings back the speed I want, but what is the downside?
Any advice gratefully received.
No answers from anyone else, so this is what I have done:
I made sure I use CustomDictionaries.Remove on all textboxes with custom dictionaries before closing the form they are on. This gets rid of new entries in _GLOBAL_ and the related files in AppData\Local\Temp.
But there will be times when things go wrong or the user just ends the task, leaving _GLOBAL_ entries and .dic files in place, so:
I decided to take things a stage further. When I start my application, I will not only clean entries in _GLOBAL_ that don't have matching files (as suggested in the previous post referenced above), but also to remove all entries referring to .dic files in AppData\Local\Temp. My theory being that anyone who has left entries there didn't mean to, otherwise they would probably have saved the .dic file in a different folder (as Microsoft Office does).
try
{
string[] allDictionaries = (string[])Registry.GetValue(#"HKEY_CURRENT_USER\Software\Microsoft\Spelling\Dictionaries", "_Global_", new string[0]);
if (allDictionaries.Count() > 0)
{
List<string> realDictionaries = new List<string>();
bool changedSomething = false;
foreach (string thisD in allDictionaries)
{
if (File.Exists(thisD))
{
if (thisD.Contains(#"\AppData\Local\Temp\"))
{
// Assuming that anyone who wants to keep a permanent .dic file will not store it in \AppData\Local\Temp
// So delete the file and don't copy the name of the dictionary into the list of good dictionaries.
File.Delete(thisD);
changedSomething = true;
}
else
{
realDictionaries.Add(thisD);
}
}
else
{
// File does not exist, so don't copy the name of the dictionary into the list of good dictionaries.
changedSomething = true;
}
}
if (changedSomething)
{
Registry.SetValue(#"HKEY_CURRENT_USER\Software\Microsoft\Spelling\Dictionaries", "_Global_", realDictionaries.ToArray());
}
}
}
catch (Exception ex)
{
MessageBox.Show(this, "Error clearing up old dictionary files.\n\nFull message:\n\n" + ex.Message, "Unable to delete file", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
I am still wondering if it is totally safe to clear entries in _GLOBAL_ that refer to files in AppData\Local\Temp. Surely people shouldn't be leaving important stuff in a temp folder... should they?
What would be really nice would be an overload to CustomDictionaries.Add that allows us to set the name and folder of the .dic file, allowing all the textboxes in the same application to share the same .dic file and making sure we don't leave a load of redundant entries and files with seemingly random names hanging around in the first place..... please Microsoft.

c# customizing controls on a save dialog -- how to disable parent folder button?

I am working from the sample project here: http://www.codeproject.com/Articles/8086/Extending-the-save-file-dialog-class-in-NET
I have hidden the address/location bar at the top and made other modifications but I can't for the life of me manage to disable the button that lets you go up to the parent folder. Ist is in the ToolbarWindow32 class which is the problem. This is what I have at the moment but it is not working:
int parentFolderWindow = GetDlgItem(parent, 0x440);
//Doesn't work
//ShowWindow((IntPtr)parentFolderWindow, SW_HIDE);
//40961 gathered from Spy++ watching messages when clicking on the control
// doesn't work
//SendMessage(parentFolderWindow, TB_ENABLEBUTTON, 40961, 0);
// doesn't work
//SendMessage(parentFolderWindow, TB_SETSTATE, 40961, 0);
//Comes back as '{static}', am I working with the wrong control maybe?
GetClassName((IntPtr)parentFolderWindow, lpClassName, (int)nLength);
Alternatively, if they do use the parent folder button and go where I don't want them to, I'm able to look at the new directory they land in, is there a way I can force the navigation to go back?
Edit: Added screenshot
//Comes back as '{static}', am I working with the wrong control maybe?
You know you are using the wrong control, you expected to see "ToolbarWindow32" back. A very significant problem, a common one for Codeproject.com code, is that this code cannot work anymore as posted. Windows has changed too much since 2004. Vista was the first version since then that added a completely new set of shell dialogs, they are based on IFileDialog. Much improved over its predecessor, in particular customizing the dialog is a lot cleaner through the IFileDialogCustomize interface. Not actually what you want to do, and customizations do not include tinkering with the navigation bar.
The IFileDialogEvents interface delivers events, the one you are looking for is the OnFolderChanging event. Designed to stop the user from navigating away from the current folder, the thing you really want to do.
While this looks good on paper, I should caution you about actually trying to use these interfaces. A common problem with anything related to the Windows shell is that they only made it easy to use from C++. The COM interfaces are the "unfriendly" kind, interfaces based on IUnknown without a type library you can use the easily add a reference to your C# or VB.NET project. Microsoft published the "Vista bridge" to make these interfaces usable from C# as well, it looks like this. Yes, yuck. Double yuck when you discover you have to do this twice, this only works on later Windows versions and there's a strong hint that you are trying to do this on XP (judging from the control ID you found).
This is simply not something you want to have to support. Since the alternative is so simple, use the supported .NET FileOk event instead. A Winforms example:
private void SaveButton_Click(object sender, EventArgs e) {
string requiredDir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
using (var dlg = new SaveFileDialog()) {
dlg.InitialDirectory = requiredDir;
dlg.FileOk += (s, cea) => {
string selectedDir = System.IO.Path.GetDirectoryName(dlg.FileName);
if (string.Compare(requiredDir, selectedDir, StringComparison.OrdinalIgnoreCase) != 0) {
string msg = string.Format("Sorry, you cannot save to this directory.\r\nPlease select '{0}' instead", requiredDir);
MessageBox.Show(msg, "Invalid folder selection");
cea.Cancel = true;
}
};
if (dlg.ShowDialog() == DialogResult.OK) {
// etc...
}
}
}
I don't this is going to work. Even if you disable the button they can type ..\ and click save and it will take them up one level. You can't exactly disable the file name text box and maintain the functionality of the dialog.
You'd be better off either using the FolderBrowserDialog and setting it's RootFolder property and asking the user to type the filename in or auto generating it.
If the folder you are wanting to restrict the users to isn't an Environment.SpecialFolder Then you'll need to do some work to make the call to SHBrowseForFolder Manually using ILCreateFromPath to get a PIDLIST_ABSOLUTE for your path to pass to the BROWSEINFO.pidlRoot
You can reflect FolderBrowserDialog.RunDialog to see how to make that call.
Since you want such custom behaviors instead of developing low level code (that is likely yo break in the next versions of windows) you can try to develop your file picker form.
Basically it is a simple treeview + list view. Microsoft has a walk-through .
It will take you half a day but once you have your custom form you can define all behaviors you need without tricks and limits.

WPF 4.0 SpellCheck issue loading Custom Dictionaries

Has anyone used a custom dictionary into WPF 4.0?
I am having an issue getting the Custom Dictionaries to work in my WPF project.
I have been trying to follow the example msdn offers but have made no progress.
http://msdn.microsoft.com/en-us/library/system.windows.controls.spellcheck.customdictionaries.aspx
glossary.Definition.SpellCheck.IsEnabled = true;
Uri uri = new Uri(#"pack://application:,,,/Prog.Proj;component/dictionary.lex");
glossary.Definition.SpellCheck.CustomDictionaries.Add(uri);
Due to the nature of my work sub folders have been renamed.
My .lex file is set as a resource file.
EDIT
I am able to get this to work only if I set it up in a separate button event after the page has already loaded. It seems that something is preventing the 'Speller' property of CustomDictionariesSources to load until after a postback? If anyone knows anything on this please post your insight.
FINAL EDIT
My desired text box was within a grid which had a enabled disabled flag that was set deep within the code. Another link commented below talks towards this point. Another issue faced is my page is rendered by parts depending on user selection. To create consistent behavior I am loading my spellcheck as a last step each time my textbox would be loaded/re-loaded.
I created a context menut extension to allow users to either take a suggestion or add to a custom dictionary. I am then submitting my custom dictionary into the registry based on current user. I found this direction to be very user friendly and easy to implement. To retrieve the items back I need to create a temporary file, pack the uri for that file then after loading the custom dictionary I deleted the file.
If this helps you implement your custom spell check or if you have questions please let me know!
The URI in your example is a Disk path to a folder on your C: drive. If you want to access the lex file embedded as a resource within your application, you need to use a "Pack URI."
Refer to the article which you already linked to, for an example of a Pack URI being used to load a custom dictionary:
private void button1_Click(object sender, RoutedEventArgs e)
{
IList dictionaries = SpellCheck.GetCustomDictionaries(richTextBox1);
// customwords2.lex is included as a resource file
dictionaries.Add(new Uri(#"pack://application:,,,/WPFCustomDictionary;component/customwords2.lex"));
}
In my case the problem was fixed by changing the Build Action on my custom.lex file from None to Resource

Hyperlink to a local file doesn't work

I need to add 2 type of links to existing report with c#. For exapmle:
1) http://www.google.co.il/
2) file:///C:/index.html
I added the links, but only the "http://" works. when I press the link of "file:///" nothing happens.
I've uploaded the full project (very small though) which includes the problem:
http://www.filefactory.com/file/452gsoyymalv/n/ObjectReports.zip
BTW, the "index.html" is a simple 'helloWorld' which loaded successfully when writing the path on the address bar in the browser.
Do anyone knows what additional settings should be set to make the file link work?
*Credit for the sample (without my case):
http://www.c-sharpcorner.com/uploadfile/mahesh/reportviewerobject04172007111636am/reportviewerobject.aspx
AFAIK this is disabled for security reasons - the ReportViewer is NOT a complete browser...
You can try to circumvent that limitation by handling ReportViewer.Hyperlink event yourself... can't try it myself right now, but that's about the only option that can possibly work IMHO...
This is the detailed solution (main idea suggested by #Yahia):
First, I created the event handler:
public void HyperLinkReportHandler(Object sender, HyperlinkEventArgs e)
{
Process.Start(e.Hyperlink);
}
Second, I associated the event handler:
this.rvContainer.Hyperlink += HyperLinkReportHandler;

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