Question Comments

-How to change FileStoreObject to work With Application server?
-How many files you can store in one folder and the system is not to slow?

Can this sample be upgraded with Application server and multiple folders in File Data Store folder?

Thank you for your example, but could you upgrade this to VB.NET?

I tried to run this example but it crashes.
It occurs a fatal error when I try to append a file after creating a new "Standard File Data Demo" Item. The error occurs at the moment the file select box opens. I didn't found a way to debug it.
Do you have a glue what it could be?

My configuration:
Win7 64BIT, VS2010, v2012 vol 1.7, SQL Server Express 2008 R2

Thanks, Martin

@Roger: I have not yet tested this module with the application server. It is a good idea, though. Thank you for your input, I have added it to my TODO list.

@Sander: It is quite complex a module to rewrite it in VB.NET, as well as maintain two versions later. Even though it is not in my immediate plans, you can either include the C# module project into your VB.NET solution (Visual Studio allows this) or rather use free or paid conversion tools.

@Martin: Thank you for your comment. Hm, it performs perfectly well for me. I also ran functional tests that passed locally. You are probably not using the latest version in this example. It would be great if you could create a separate ticket in the Support Center and attach the eXpressAppFramework.log file with the error details. Thank you in advance!

PS.
Sorry for the late reply, guys. In the future, it is better to submit a ticket directly via the http://www.devexpress.com/Support/Center/Question/Create link, if you experienced any difficulties with our tools.

Hi,
I'm working with Images in XAF application storing user image file to file system. So I'm using FileSystemStoreObject and It work fine for me. However, I've some problem!

one - I'd like split and save user images in FileData\<mykey1> folder where mykey1 depends by Business Objects instance1,
user images in FileData\<mykey2> folder where mykey2 depends by Business Objects instance2 and so on.
two - I'd like show stored images like Asp.net Images Slides Control or a link item in grid view to open images.

Do you have any suggestion or example?

Best regards,
Gaetano

Do vou have an exemple of this as a domain componente?

Regards,
Ricardo

Did the "StandardFileDataDemo" store file attachments in database?

@xaero: The StandardFileDataDemo class uses the FileData class that stores files in the database and which is a part of the standard delivery.

In turn, the FileSystemStoreObjectDemo class stores files in the file system with the help of custom IFileData implementations described in this example.

Hi Dennis, thank you for the code - it works great in my web application (I'm only using the FileSystemStoreObject). I've made a mod to cover the case where the user has previously saved a business object and subsequently reloads it to edit the FileSystemStoreObject property, namely to pick a different file. In this case _tempFileName is not correctly populated and the old file is not deleted when the file is changed and the business object saved.

My solution was to add the following code to FileSystemStoreObject.cs

   protected override void OnLoaded()
   {
       base.OnLoaded();
       _tempFileName = this.RealFileName;
   }

Hope this helps others and perhaps you could update your code if you also feel this is a good solution.

Thanks for sharing, Steve. Would you please either record a video showing how to replicate this behavior with the original example or create a functional EasyTest script covering this scenario? This will help me better understand the situation and make changes, if necessary. Thanks in advance! 

Dennis, how shall I send the video? No attachments in this thread.

It's ok about sending the video, I've decided to host it for a short while here: http://host21.co.uk/e965/

Does this already work using Application Server? Given the correct credentials, will this concept work with Dropbox (in replacement to File System)?

Hello,

To process your recent post more efficiently, I created a separate ticket on your behalf: T329782: E965 with dropbox. This ticket is currently in our processing queue. Our team will address it as soon as we have any updates.

[C#]
[NonPersistent]publicbyte[]Content{get{returnFile.ReadAllBytes(this.RealFileName);}set{this.TempSourceStream=newMemoryStream(value);}}

@Chris: To process your recent post more efficiently, I created a separate ticket on your behalf: T358143: How to set the width and height of the FileData PropertyEditor control. This ticket is currently in our processing queue. Our team will address it as soon as we have any updates. For better tracking, please also use the https://www.devexpress.com/Support/Center/Question/Create service to submit new questions regarding this or any other XAF functionality. Thanks for your understanding.

Question Comments

Hi,

There is no such code in this example. Please check the How to: Create a New Workbook documentation article to see how to do that.

Question Comments

How do I make this piece of code in version 13.2.7?

app.initialized.add(function() {
       var $view = app.getViewTemplate("LogOnPopup");
       $view.appendTo(".dx-viewport");
       LogOnAsPopupView.loggedOn = ko.observable(false);
       LogOnAsPopupView.logOnPopupViewModel = LogOnAsPopupView.LogOnPopup();
       ko.applyBindings(LogOnAsPopupView.logOnPopupViewModel, $view[0]);
   });

Im having error on initialized event. Error says 'Error: cannot ready property 'add' of undefined' on app.initialized.add(funtion() { line.

Please help me

I just upgraded my project to 13.2.9 by project converter and viola everything works.

Thanks for the self-explanatory post.

Hi Nikolai,

With authentication implementation, my LogOn.js file looks like below
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
AESalesApp.LogOnPopup = function (params) {

   var viewModel = {
       userid: ko.observable(""),
       password: ko.observable(""),
       visible: ko.observable(false),
       authenticated: ko.observable(false),
       redirectParam: this.redirectParams,
       logOn: function () {

           var user = {
               Name: this.userid(),
               UserName: this.userid()
           };
        
           AESalesApp.UserDb.authenticateUser(user).done(function (data) {

               AESalesApp.loggedOn(true);

               AESalesApp.credentialStore.insert({
                id: 1,
                accessToken: "34234234234234234",
                expiry: 234,
                refreshToken: "134234234234234",
                name: "faraz"
                });

               if (viewModel.redirectParam) {
                   AESalesApp.app.navigate(viewModel.redirectParam.uri, viewModel.redirectParam.options);
               }
               viewModel.close();

           });
       
       },
       show: function (redirectParams) {
           viewModel.visible(true);
           viewModel.redirectParam = redirectParams;
       },
       close: function () {
           viewModel.visible(false);
           delete viewModel.redirectParam;
       }
   };

   return viewModel;
};
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
where:
AESalesApp.UserDb is CustomStore getting data from Web Api. It is working fine and data is coming back from authenticalUser call.

I am having 2 problems here.
1. Done function param 'data' is not getting results from authenticateUser function  
2. Popup is not closing down

this line should be updated:

<div data-bind="dxTextBox:{ type: 'password', value: password }"></div>

with

<div data-bind="dxTextBox:{ mode: 'password', value: password }"></div>

Hi, this sample doesn't appear to be working anymore on just released v 14.2.3
The popup stays hidden.

Hi,

Can you please tell me how this can be accomplished with the Angular approach?
A sample would be best.

Thanks,
Ionut.

Hello Julian,

To process your recent post more efficiently, I created a separate ticket on your behalf: T365094: dxDataGrid - Ho to implement a custom data source. This ticket is currently in our processing queue. Our team will address it as soon as we have any updates.

Question Comments

[C#]
usingSystem;usingSystem.IO;usingDevExpress.Images;namespaceGetIconLibrary{classProgram{staticvoidMain(string[]args){stringfilePathRoot=@"E:\Icons\DevExpress Icon Library\";foreach(ImagesAssemblyImageInfoimageInfoinImagesAssemblyImageList.Images){stringimageType=imageInfo.ImageType.ToString();stringimageSize=imageInfo.Size.ToString();stringfilePathSpecific=Path.Combine(filePathRoot,imageType,imageSize);if(!Directory.Exists(filePathSpecific)){try{Directory.CreateDirectory(filePathSpecific);}catch(Exceptione){Console.WriteLine("Can't create a directory: {0}",e.ToString());}finally{}}using(Streamstr=ImageResourceCache.Default.GetResourceByFileName(imageInfo.Name)){if(str!=null&&str.CanRead){using(FileStreamfileStream=File.Create(filePathSpecific+"\\"+imageInfo.Name)){str.CopyTo(fileStream);Console.WriteLine("Writing "+imageInfo.Name);}}}}}}}

Question Comments

Hi folks,

would you mind to attach an example using the code below?

Thanks in advanced.
Eduardo

Hello,
You can download the project for this example by a link on a right panel (see the screenshot in the attachment). First you have to download the Example Runner, then use this runner to open the *.dxsample file. 
I hope this helps. 

Needs a bit of tweaking in RecalculateColumnWidths to exclude summing columns with GroupIndex >= 0 (unless OptionsView.ShowGroupedColumns == true)

please note:
- doesn't take into account grouped columns
- if the user manually chooses "best fit column" or "best fit all columns" from the context menu, the results are weird.

Hello,
I've created a separate ticket on your behalf: The 'Capability for a single column to fill an empty space in a grid view' example works incorrectly in certain scenarios . Let us continue our discussion in this thread.

Hello,

I've created a separate ticket on your behalf (T388227: How to make a single column to fill an empty space in a grid view). It has been placed in our processing queue and will be answered shortly.

Question Comments

I believe 'beforeSend' function should be a member of the ODataContext and not a member of the CategoryList object.

Hi,

I want to know if this method for Basic Authorization works when JSONP is enabled.

Thanks.

Which version of visual studio works this example?

THis code is not worrking. error comes app not defined. how i can resolve this error.

Change line "app.navigate('Login');" to navigate to your login page according to your other code.

this example  isn't working for me

Hi Nikolai,

This example seems to be incomplete as it doesn't have the OData Service project included in it to demonstrate the functionality.

I would appreciate if you can create the ODataService project and demonstrate the example fully.

please I'm getting this error
"Error: 'ReferenceError: app is not defined', line 14, file 'http://localhost:64254/views/login.js'&quot;

Can you help me for this?

Hello Saliha,

To process your recent post more efficiently, I created a separate ticket on your behalf: T328732: Cannot test the E4460 example due to the "app is not defined" error. This ticket is currently in our processing queue. Our team will address it as soon as we have any updates.

It's ok. I prefixed the "app" with the name of my application. Now the error is not displayed. (Guess I get it)
but i'd like to know where should I put the db.js?  Is it in the same folder as "login" and "index" ?
Because I got this error :
"Error: 'TypeError:  TestApp.db is undefined', line 4, file 'http://localhost:54294/views/index.js'.&quot;

You can place the db.js file into any folder. The main requirement is that a reference to this file should be placed before a reference to index.js. 

I did not understand what does "db.js" really do?

Here are the sequence of ideas in my head:

1- User enter his (UserName & password) then click LoginButton
2- the index page is shown and it is expected to display a list of categories. The data source of this page is the "CategoryList"

Now I don't understand what is exactly the "categoryList". Is it a table in the DB which is linked to My OdataService?
what do this two lines mean :
key: "CategoryID",
name: "Categories"

So briedfly I need more explanation to make the db.js clear in my head?
thks to help.

Hello Şule,

I've created a separate ticket on your behalf (T370893: The E4460 example throws error). It has been placed in our processing queue and will be answered shortly.

Hello Hari,

I've created a separate ticket on your behalf (E4460: How to send authenticated requests to the OData service). It has been placed in our processing queue and will be answered shortly.

Question Comments

Hello Antonio,

As far as I understand, you have created a separate ticket with a similar issue: XtraTabControl XtraTab ProgressBar In Tab. This ticket is currently in our processing queue. Our team will reply to you there shortly.

Question Comments

Hello,

As far as I can see, you have already created a thread with the same question - Custom filter event. So, let's continue our discussion there.

Question Comments

Question Comments

Hello,

How can I filter by flags enum property in the server mode? I mean filtering the ListView by AutoFilterRow.

would that same code for WEB

@Alex: While we do not have a ready Web version of this example, you may find the code from the E1807 example helpful. Thanks.

Web version is added.

Hi, I had try this method for the XAF web version. The question is how i want to use the XAF Display Name to show in the lookup? bcos I only see the enum values.
Thanks.

@Leong: This particular functionality is not implemented in this example solution. You would need to modify the E689.Module.Web.Editors.EnumPropertyEditorEx class to achieve this. While we do not have a ready sample, feel free to contact our ASP.NET team on how to implement your task with the ASPxGridLookup component used in this example. Once you receive a solution for this component, it can be easily integrated in XAF.

Hi Dennis,

1. Is it possible to change the ASPXGridLookup with the ASPXDropDownEdit? This is the link http://blog.zerosharp.com/three-ways-to-store-a-list-of-currency-codes-in-xaf/#disqus_thread, but this example use the string, how to convert it to enum?
2. How to contact your ASP.NET team to implement my task with the ASPXGridLookup?

Thanks.

@Leong:

A1: Sure, you are free to implement your own custom PropertyEditor based on any control you want.
A2: You can submit a new question through https://www.devexpress.com/Support/Center/Question/Create and specify the ASP.NET Web Forms platform and ASPxGridView and Editors Suite as a product. In the new ticket describe what you have implemented so far, attach a small non-XAF sample where you tried to customize the ASPxDropDownEdit control and also describe your requirements in detail. Before doing this, you may want to check out the documentation on our ASP.NET Web Forms controls and also corresponding demos. To effectively search our knowledge base, documentation and examples, you may find our Search Engine helpful.

@Leong:

I have modified the Web version of this custom editor to support localized values. Please refer to the attachment.

@MohammedFarooq: There are different properties like EditValue/Text/Value in underlying WinForms and ASP.NET controls. Would you please elaborate a bit more on how you are going to reuse these display values (please submit a separate ticket via the https://www.devexpress.com/Support/Center/Question/Create service for that purpose)?

Question Comments

I was wondering why this project is not compatible with Visual Studios Ultimate 2010? Thanks

I used your code with the modification that it would check the AD for authentication. It works. However, it always popup the login window for entering the username and password.

How can i get the userinfo from the database?

How can i retrieve this users from a database?

How would you do authentication with sql membership provider????

This example no compile in  Visual Studio 2013  because some assembly references are missing.

Hello,

To process your recent post more efficiently, I created a separate ticket on your behalf: T135174: E4403 is not compiled in Visual Studio 2013. This ticket is currently in our processing queue. Our team will address it as soon as we have any updates.

Hello Dev express team,

Can you please explain me how to get my the user information from our DB, we use  The Profile provider in ASP.NET Membership & Users, and how to integrated to this Authentication process?

************************* YOUR SAMPLE CODE************************
namespace MyDataService {     
public class CustomBasicAuth {          
class UserInfo {             
public string Name { get; set; }             
public string PasswordHash { get; set; }             
public string[] Roles { get; set; }         }          
static UserInfo[]
Users = new[] {             new UserInfo {                 
Name = "John",                 
PasswordHash = "F3U89ry4+MMXyqbbT90tcs18J5Y=",                 
Roles = new[] { "User", "Admin" }             }         };
************************************************************************
My Tables:

aspnet_Users:
UserID
UserName

aspnet_Membership:
UserID
Password (encripted)

aspnet_Roles:
RoleID
RoleDescripcion

aspnet_UsersInRoles:
UserID
RoleID

Regards
Pedro Perez

Hello Pedro,

To process your recent post more efficiently, I created a separate ticket on your behalf: T262586: How to select users from DB in authenticated data service. This ticket is currently in our processing queue. Our team will address it as soon as we have any updates.

When I debug this webservice and go to this link http://localhost:65443/MyDataService.svc. It throw an error 'Invalid login or password'. How can I access this service? I don't know how to use UserName: John, Password: qwerty you gave me.

Question Comments

Hello,

How can I filter by flags enum property in the server mode? I mean filtering the ListView by AutoFilterRow.

would that same code for WEB

@Alex: While we do not have a ready Web version of this example, you may find the code from the E1807 example helpful. Thanks.

Web version is added.

Hi, I had try this method for the XAF web version. The question is how i want to use the XAF Display Name to show in the lookup? bcos I only see the enum values.
Thanks.

@Leong: This particular functionality is not implemented in this example solution. You would need to modify the E689.Module.Web.Editors.EnumPropertyEditorEx class to achieve this. While we do not have a ready sample, feel free to contact our ASP.NET team on how to implement your task with the ASPxGridLookup component used in this example. Once you receive a solution for this component, it can be easily integrated in XAF.

Hi Dennis,

1. Is it possible to change the ASPXGridLookup with the ASPXDropDownEdit? This is the link http://blog.zerosharp.com/three-ways-to-store-a-list-of-currency-codes-in-xaf/#disqus_thread, but this example use the string, how to convert it to enum?
2. How to contact your ASP.NET team to implement my task with the ASPXGridLookup?

Thanks.

@Leong:

A1: Sure, you are free to implement your own custom PropertyEditor based on any control you want.
A2: You can submit a new question through https://www.devexpress.com/Support/Center/Question/Create and specify the ASP.NET Web Forms platform and ASPxGridView and Editors Suite as a product. In the new ticket describe what you have implemented so far, attach a small non-XAF sample where you tried to customize the ASPxDropDownEdit control and also describe your requirements in detail. Before doing this, you may want to check out the documentation on our ASP.NET Web Forms controls and also corresponding demos. To effectively search our knowledge base, documentation and examples, you may find our Search Engine helpful.

@Leong:

I have modified the Web version of this custom editor to support localized values. Please refer to the attachment.

@MohammedFarooq: There are different properties like EditValue/Text/Value in underlying WinForms and ASP.NET controls. Would you please elaborate a bit more on how you are going to reuse these display values (please submit a separate ticket via the https://www.devexpress.com/Support/Center/Question/Create service for that purpose)?

@Tony: I've created a separate ticket on your behalf (T391277: E689 - How to avoid the save confirmation when opening a drop down without changing its value). It has been placed in our processing queue and will be answered as soon as we can.

Question Comments