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  • Dynamic DataGrid columns in WPF DataGrid based on the underlying set of data (and their type)

    - by StatsMan
    Hello everyone, I've got kind of a conceptual question. I am in the process of wrapping some statistics classes I wrote into WPF. For that I have two DataGrid(-Views, currently in WinForms). In one DataGrid each row represents a column in the other. There I can set-up different variables (as in mathematical/statistical variables) with fields like "Header", "DataType", "ValidationBehaviour", "DisplayType". There I can also set-up how it should be displayed. Some Columns can automatically be set to ComboBoxColumns, some TextBoxColumns, and so on and so forth. So, now once I've set-up these Columns I can go to the other grid and enter my data. I may, for instance, have generated (in grid 1) one Column called "Annual Gross Salary" with input of numerical values. Another Column called "Education" with "0=NoEducation", "1=College Level", "3=Universitary" etc. These labels are displayed as text in the combobox and my statistics engine behind then selects the respective value (0-3) for calculations (i.e. ordinal, nominal variables). Sooo. In WinForms I could basically generate all the columns by hand in code and then add my data in the respective cells/rows. Now in WPF I thought that must be easy to realise. However, yesterday I got started with ICustomPropertyDescriptor which (maybe I was too thick) didn't give me the results I was looking for. Basically, I just need to be able to dynamically generate columns (and rows) with different Layout, Controls (ComboBox, simple Input, DateTimes) based on the data that I have. But I don't really know how to go about it? So here in summary: DataGrid 1 Purpose is to display columns that have been specified in DataGrid 2 In rows, the user can add any kind of data in the rows below the columns that is allowed as to the columns specifications DataGrid 2 Each row in this grid represents a column in DataGrid 1 Contains fields like Name/Header, DataType, Validation Behaviour, Default Value, Data Formatting, etc. Also contains a function to be able to set-up how it should be displayed. The user can select from, for instance, ComboBoxColumn (and also add the available options), DateTime, normal TextBox, CheckBox etc. After finishing adding a row it will automatically appear as a new column in DataGrid 1 I'd appreciate any kind of pointer into the right direction. Thanks very, very much in advance! :)

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  • jqGrid Filter Toolbar initial default value

    - by Paul Creasey
    I'm using jqGrid with the filter toolbar, i need to set an initial default filter value to one of the fields so that only rows with status 'Open' are displayed by default, but the user can display Closed rows if desired. At the moment i have a workaround like this setTimeout(function() {$('#gs_Status').val('Open');$("#eventsGrid")[0].triggerToolbar()},500); but it results in a second request and is pretty bad really. Does anybody know how to do this?

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  • How should I escape strings in JSON?

    - by Bytecode Ninja
    When creating JSON data manually, how should I escape string fields? Should I use something like Apache Commons Lang's StringEscapeUtilities.escapeHtml, StringEscapeUtilities.escapeXml, or should I use java.net.URLEncoder? The problem is that when I use SEU.escapeHtml, it doesn't escape quotes and when I wrap the whole string in a pair of 's, a malformed JSON will be generated.

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  • jQuery Validation plugin: disable validation for specified submit buttons

    - by Ted
    I have a form with multiple fields that I'm validating (some with methods added for custom validation) with Jörn Zaeffere's excellent jQuery Validation plugin. How do you circumvent validation with specified submit controls (in other words, fire validation with some submit inputs, but do not fire validation with others)? This would be similar to ValidationGroups with standard ASP.NET validator controls. My situation: It's with ASP.NET WebForms, but you can ignore that if you wish. However, I am using the validation more as a "recommendation": in other words, when the form is submitted, validation fires but instead of a "required" message displaying, a "recommendation" shows that says something along the line of "you missed the following fields.... do you wish to proceed anyways?" At that point in the error container there's another submit button now visible that can be pressed which would ignore the validation and submit anyways. How to circumvent the forms .validate() for this button control and still post? The Buy and Sell a House sample at http://jquery.bassistance.de/validate/demo/multipart/ allows for this in order to hit the previous links, but it does so through creating custom methods and adding it to the validator. I would prefer to not have to create custom methods duplicating functionality already in the validation plugin. The following is a shortened version of the immediately applicable script that I've got right now: var container = $("#<%= Form.ClientID %> div.validationSuggestion"); $('#<%= Form.ClientID %>').validate({ errorContainer: container, errorLabelContainer: $("ul",container), rules: { <%= YesNo.UniqueID %>: { required: true }, <%= ShortText.UniqueID %>: { required: true } // etc. }, messages: { <%= YesNo.UniqueID %>: 'A message.', <%= ShortText.UniqueID %>: 'Another message.' // etc. }, highlight: function(element, errorClass) { $(element).addClass(errorClass); $(element.form).find("label[for=" + element.id + "]").addClass(errorClass); $(element.form).find("label[for=" + element.id + "]").removeClass("valid"); }, unhighlight: function(element, errorClass) { $(element).removeClass(errorClass); $(element.form).find("label[for=" + element.id + "]").removeClass(errorClass); $(element.form).find("label[for=" + element.id + "]").addClass("valid"); }, wrapper: 'li' }); Much thanks in advance for helpful pointers. [UPDATE] Thanks to redsquare I discovered it's as easy as adding class="cancel" to the submit button. So easy and yet I have no idea how I did not come across it in all my searching. And for those who say my my follow-up answer regarding "but requires a double-click": this was merely due to a leftover experiment line that was unbinding the event - again something I don't know how I overlooked when testing. Thanks!

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  • Redirect particular hostname from https to httpd in httpd/apache2

    - by webnothing
    I have a webserver that has an ssl certificate applied to a subdomain https://shop.mydomain.com. I also have the hostname http://mydomain.com that has no ssl certificate. When invoking https://mydomain.com, browsers issue a warning that a certificate could not be verified because the webserver is identifying itself as https://shop.mydomain.com. I would like all traffic that hits https://mydomain.com to be redirected to http://mydomain.com, and leave https://shop.mydomain.com as is. My httpd.conf file generally looks like this: < VirtualHost 122.11.11.21:80 > ServerName shop.mydomain.com .. regular old port 80 .. < /VirtualHost > < VirtualHost 122.11.11.21:443 > ServerName shop.mydomain.com .. SSL applies here .. < /VirtualHost > < VirtualHost 122.11.11.21:80 > ServerName mydomain.com .. regular old port 80 .. < /VirtualHost > It does not look as if I have SSL set up for https://mydomain.com yet one can invoke SSL mode and the browser identifies the connection as https://shop.mydomain.com. I need to redirect from https://mydomain.com because for some reason, Google has indexed my website with this url even though it shows a warning. I have tried various methods to get this to redirect and nothing has worked. Any help would be greatly appreciated.

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  • XML Serialization and Soap Serialization

    - by Costa
    Hi I think even if we will not need interoperability between applications, and even we do not communicate with web services, it is easier to serialize using SoapFormatter than XmlSerializer because SOAP will serialize the private members by default, while XmlSerializer will work on public properties and fields. actually I cannot find a reason for using XmlSerializer, do I miss something? what is disadvantages of SoapFormatter. or what is advantage of XML serialization over Soap? (xsd) thanks

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  • Spring validation @AssertTrue

    - by Eqbal
    How do I display on a view jsp validation error message that occurs as a result of @AssertTrue annotation? It isn't tied to a specific field, but I am using it to validate a combination of fields. If I use <form:errors path="*"/> that will display all the errors for that form?

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  • How do I add a listener that will work on individual Fieldset in Extjs? Clicking the "Add" button sh

    - by Nair
    Testing Window /*! * Ext JS Library 3.0.0 * Copyright(c) 2006-2009 Ext JS, LLC * [email protected] * http://www.extjs.com/license */ Ext.onReady(function(){ Ext.override( Ext.data.Store, { findExact: function( fld, val ) { var hit = null; this.each( function(rec) { if( rec.get(fld) == val ) { hit = rec; return false; }; } ); return hit; } }); var listAdded = 0; var addListBtn = { text: 'Add', handler: function() { Ext.getCmp('tab_list').add(getList()); Ext.getCmp('tab_list').doLayout(); } } var testData = new Ext.data.SimpleStore({ fields: ['no', 'name', 'address','phone','businessPhone'], data: [['68', 'Target','123 Valley Road','(345) 908-9087','(345) 908-9087'], ['69', 'Walmart','456 Main Road','(345) 908-9999','(345) 908-9990']] }); var getList = function() { listAdded++; var items = new Ext.form.FieldSet( { id:listAdded, title: listAdded, collapsible: true, layout: 'form', autoHeight: true, defaults: {width: 300}, defaultType: 'textfield', bodyStyle: 'padding:5px', labelWidth: 225, items: [ { xtype: 'combo', fieldLabel: 'Customer No', name: 'changescustomerNo', hiddenName: 'changescustomerNo', store: new Ext.data.SimpleStore({ fields: ['id','value'], data: [['68','Test1'],['69','Test2']] }), displayField: 'value', valueField: 'id', selectOnFocus: true, mode: 'local', editable: false, triggerAction: 'all', value: ' ', listeners:{select:{ fn:function(combo, value) { var m = testData.findExact( 'no', this.value ); if(m) { //alert(this.id); Ext.getCmp('currentName').setValue(m.get('name')); Ext.getCmp('currentAddress').setValue(m.get('address')); Ext.getCmp('currentTelephoneNumber').setValue(m.get('phone')); Ext.getCmp('currentBusTelephoneNumber').setValue(m.get('businessPhone')); } }//function }//select }//listeners },{ id: 'currentName', fieldLabel: 'Current Name', name: 'currentName', value: '' },{ id: 'currentAddress', width: 298, xtype: 'textarea', fieldLabel: 'Current Address', name: 'currentAddress', value: '' },{ id:'currentTelephoneNumber', fieldLabel: 'Current Telephone Number', name: 'currentTelephoneNumber', value: '' },{ id: 'currentBusTelephoneNumber', fieldLabel: 'Current Business Telephone Number', name: 'currentBusTelephoneNumber', value: '' } ] } ); return items; } var pnlMain = new Ext.Panel({ id: 'theForm', title: 'Sample List', bodyStyle:'padding:5px', autoWidth: true, frame: true, items: [{ xtype: 'tabpanel', id: 'tabpanel', activeTab: 0, height: 540, width: '100%', resizeTabs: true, tabWidth: 125, minTabWidth: 125, layoutOnTabChange: true, deferredRender: false, // Create all form elements on load defaults: { bodyStyle: 'padding:10px', autoScroll: true, layout: 'form', defaultType: 'textfield', labelWidth: 160 }, items:[{ id: 'tab_list', title: 'List', items: getList(), buttons: [ addListBtn ] }] }] }); pnlMain.render('main'); });

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  • Update a list from another list

    - by Langali
    I have a list of users in local store that I need to update from a remote list of users every once in a while. Basically: If a remote user already exists locally, update its fields. If a remote user doesn't already exist locally, add the user. If a local user doesn't appear in the remote list, deactivate or delete. If a local user also appears in the remote list, update its fields. Just a simple case of syncing the local list. Is there a better way to do this in pure Java than the following? I feel gross looking at my own code. public class User { Integer id; String email; boolean active; //Getters and Setters....... public User(Integer id, String email, boolean active) { this.id = id; this.email = email; this.active = active; } @Override public boolean equals(Object other) { boolean result = false; if (other instanceof User) { User that = (User) other; result = (this.getId() == that.getId()); } return result; } } public static void main(String[] args) { //From 3rd party List<User> remoteUsers = getRemoteUsers(); //From Local store List<User> localUsers =getLocalUsers(); for (User remoteUser : remoteUsers) { boolean found = false; for (User localUser : localUsers) { if (remoteUser.equals(localUser)) { found = true; localUser.setActive(remoteUser.isActive()); localUser.setEmail(remoteUser.getEmail()); //update } break; } if (!found) { User user = new User(remoteUser.getId(), remoteUser.getEmail(), remoteUser.isActive()); //Save } } for(User localUser : localUsers ) { boolean found = false; for(User remoteUser : remoteUsers) { if(localUser.equals(remoteUser)) { found = true; localUser.setActive(remoteUser.isActive()); localUser.setEmail(remoteUser.getEmail()); //Update } break; } if(!found) { localUser.setActive(false); // Deactivate } } }

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  • How can I get HTTPD to serve the html/php files and not list/index them when they are in folder for virtual host. Using Centos 6.0

    - by LaserBeak
    My virtual hosts are configured as below, initally I could not even get to the /public_html/ directory when typing example.com and apache would just serve me up the default welcome page, I would also get the error: Directory index forbidden by Options directive: /var/www/html/example.com/public_html/ in the log . After editing the welcome.conf page (- Index) so it does not show again when I now type example.com the/public_html/ contents (Index.php) are indexed in the browser. Where as I want it to actually execute and diplay the index.php page. vhost.conf , located in etc/httpd/vhost.d/ NameVirtualHost *:80 <VirtualHost *:80> ServerAdmin [email protected] ServerName localhost ServerAlias localhost.example.com DocumentRoot /var/www/html/example.com/public_html/ ErrorLog /var/www/html/example.com/logs/error.log CustomLog /var/www/html/example.com/logs/access.log combined </VirtualHost> <VirtualHost *:80> ServerAdmin [email protected] ServerName example.org ServerAlias www.example.org DocumentRoot /var/www/html/example.org/public_html/ ErrorLog /var/www/html/example.org/logs/error.log CustomLog /var/www/html/example.org/logs/access.log combined </VirtualHost> httpd.conf, settings on default, added onto end: Include /etc/httpd/vhosts.d/*.conf Root directories: DocumentRoot "/var/www/html"

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  • mysql update where some field is max

    - by Syom
    The table videos has the following fields: id | average | name How can i write the query, to update the name of video, which have the max average, or the second by size average!!! i can do that with two queries, by selecting the max(average) from the table, and then update the name, where ite average equal to max or to second value, but i want to do that in one query. i think the query must look like this UPDATE videos SET name = 'something' WHERE average = MAX(average) Any suggestions?

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  • Getting information of a class structure at runtime using Java reflection

    - by Eliza Sahoo
    A simple way to get the class structure information of the Class we are using in our application. Step1: Create the Class object of the class we want to explore at run time or the class which is getting added at runtime. Step2: As we are looking for the structure of the class, get all Constructors, Fields and methods by invoking respective functions of the Class. Step3: print them in java console or use them as required. Eliza

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  • Creating content of window programmatically

    - by Rui Pacheco
    Hi, I've a window that will have an unknown amount of text fields, determined by the content of a remote server. In high level terms, how should I go about this? Create a custom view or create an empty window with a backing NSWindowController and then add stuff to it when the window is opened? I've seen the examples on the O'Reilly Cocoa book and those effectively create a custom NSView. Is this the right way to do it, 8 year later?

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  • Even if GridView.DataKeyNames is set, Gridview.DataKeys[] is still empty

    - by JustTryingToLearn
    hi GridView.DataKeynames stores the names of the primary key fields for the items displayed in a GridView control. 1) Even though I’ve set DataKeyNames, GridView still doesn’t store record’s primary key value(s) in DataKey object: protected void SqlDataSource1_Selected(object sender, SqlDataSourceStatusEventArgs e) { Label2.Text = GridView2.DataKeys[0].Value.ToString();//exception } Why not? 2) I assume when DataKeyNames is set, DataKey object stores both original and new values of a primary key ( assuming we issued an update command ) and when the update is finished, DataKey object discards the original value(s)? Thank you

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  • C++ vs Matlab vs Python as a main language for Computer Vision Postgraduate

    - by Hough
    Hi all, Firstly, sorry for a somewhat long question but I think that many people are in the same situation as me and hopefully they can also gain some benefit from this. I'll be starting my PhD very soon which involve the fields of computer vision, pattern recognition and machine learning. Currently, I'm using opencv (2.1) C++ interface and I especially like its powerful Mat class and the overloaded operations available for matrix and image seamless operations and transformations. I've also tried (and implemented many small vision projects) using opencv python interface (new bindings; opencv 2.1) and I really enjoy python's ability to integrate opencv, numpy, scipy and matplotlib. But recently, I went back to opencv C++ interface because I felt that the official python new bindings were not stable enough and no overloaded operations are available for matrices and images, not to mention the lack of machine learning modules and slow speeds in certain operations. I've also used Matlab extensively in the past and although I've used mex files and other means to speed up the program, I just felt that Matlab's performance was inadequate for real-time vision tasks, be it for fast prototyping or not. When the project becomes larger and larger, many tasks have to be re-written in C and compiled into Mex files increasingly and Matlab becomes nothing more than a glue language. Here comes the sub-questions: For postgrad studies in these fields (machine learning, vision, pattern recognition), what is your main or ideal programming language for rapid prototyping of ideas and testing algorithms contained in papers? For postgrad studies, can you list down the pros and cons of using the following languages? C++ (with opencv + gsl + svmlib + other libraries) vs Matlab (with all its toolboxes) vs python (with the imcomplete opencv bindings + numpy + scipy + matplotlib). Are there computer vision PhD/postgrad students here who are using only C++ (with all its availabe libraries including opencv) without even needing to resort to Matlab or python? In other words, given the current existing computer vision or machine learning libraries, is C++ alone sufficient for fast prototyping of ideas? If you're currently using Java or C# for your postgrad work, can you list down the reasons why they should be used and how they compare to other languages in terms of available libraries? What is the de facto vision/machine learning programming language and its associated libraries used in your university research group? Thanks in advance.

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  • Unexplained CPU and Disk activity spikes in SQL Server 2005

    - by Philip Goh
    Before I pose my question, please allow me to describe the situation. I have a database server, with a number of tables. Two of the biggest tables contain over 800k rows each. The majority of rows are less than 10k in size, though roughly 1 in 100 rows will be 1 MB but <4 MB. So out of the 1.6 million rows, about 16000 of them will be these large rows. The reason they are this big is because we're storing zip files binary blobs in the database, but I'm digressing. We have a service that runs constantly in the background, trimming 10 rows from each of these 2 tables. In the performance monitor graph above, these are the little bumps (red for CPU, green for disk queue). Once ever minute we get a large spike of CPU activity together with a jump in disk activity, indicated by the red arrow in the screenshot. I've run the SQL Server profiler, and there is nothing that jumps out as a candidate that would explain this spike. My suspicion is that this spike occurs when one of the large rows gets deleted. I've fed the results of the profiler into the tuning wizard, and I get no optimisation recommendations (i.e. I assume this means my database is indexed correctly for my current workload). I'm not overly worried as the server is coping fine in all circumstances, even under peak load. However, I would like to know if there is anything else I can do to find out what is causing this spike? Update: After investigating this some more, the CPU and disk usage spike was down to SQL server's automatic checkpoint. The database uses the simple recovery model, and this truncates the log file at each checkpoint. We can see this demonstrated in the following graph. As described on MSDN, the checkpoints will occur when the transaction log becomes 70% full and we are using the simple recovery model. This has been enlightening and I've definitely learned something!

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  • Entity Framework won't SaveChanges on new entity with two-level relationship

    - by Tim Rourke
    I'm building an ASP.NET MVC site using the ADO.NET Entity Framework. I have an entity model that includes these entities, associated by foreign keys: Report(ID, Date, Heading, Report_Type_ID, etc.) SubReport(ID, ReportText, etc.) - one-to-one relationship with Report. ReportSource(ID, Name, Description) - one-to-many relationship with Sub_Report. ReportSourceType(ID, Name, Description) - one-to-many relationship with ReportSource. Contact (ID, Name, Address, etc.) - one-to-one relationship with Report_Source. There is a Create.aspx page for each type of SubReport. The post event method returns a new Sub_Report entity. Before, in my post method, I followed this process: Set the properties for a new Report entity from the page's fields. Set the SubReport entity's specific properties from the page's fields. Set the SubReport entity's Report to the new Report entity created in 1. Given an ID provided by the page, look up the ReportSource and set the Sub_Report entity's ReportSource to the found entity. SaveChanges. This workflow succeeded just fine for a couple of weeks. Then last week something changed and it doesn't work any more. Now instead of the save operation, I get this Exception: UpdateException: "Entities in 'DIR2_5Entities.ReportSourceSet' participate in the 'FK_ReportSources_ReportSourceTypes' relationship. 0 related 'ReportSourceTypes' were found. 1 'Report_Source_Types' is expected." The debug visualizer shows the following: The SubReport's ReportSource is set and loaded, and all of its properties are correct. The Report_Source has a valid ReportSourceType entity attached. In SQL Profiler the prepared SQL statement looks OK. Can anybody point me to what obvious thing I'm missing? TIA Notes: The Report and SubReport are always new entities in this case. The Report entity contains properties common to many types of reports and is used for generic queries. SubReports are specific reports with extra parameters varying by type. There is actually a different entity set for each type of SubReport, but this question applies to all of them, so I use SubReport as a simplified example.

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  • Multi-step Workflows: make Workflow A depend on results of Workflow B and/or Workflow C

    - by Joey
    I have been tasked with creating a Software Installation Approval section for our Intranet. When a person requests that a particular piece of software be installed on their workstation, we need to get IT approval and then business approval. Once those are obtained, it is to be installed. I am using Sharepoint Designer to do this. I have List A, where the user enters the information on the requested software. Workflow A then creates a Task in List B, which is then assigned to the IT approver. Workflow B works on List B on item creation, setting the due dates, titles, and other fields, and then pauses until the due date. The IT approver works with the business side and completes the task. Once List B task is complete, the item in List A should be marked as complete -- I have everything up to this point working fine. I want to make this more robust in 2 ways. As the only real option is to mark List B task as "completed", which essentially means "Approved", we have no way of really denying a request. What I want to add is the option to approve or deny a request through the task on List B -- if it is approved, I want the item in List A to continue to show "In Progress" with a custom status of "Approved", and I want to create a new task for software installation; once the installation task is marked as completed, then I want List A to show "Completed" with a status of "Installed". If it is denied, I want the item in List A to show as "Completed", with a status of "Denied". The problem is, I'm not even sure where to start making these modifications. Creating and modifying the custom status fields isn't that big of an issue -- I have messed around with this and I'm fairly confident I can do this easily. My main concern is that I know I will need a Workflow C, but I don't know where or how to trigger this to get the results I need. I've managed to get Workflows A and B working fine, but anything beyond this is really pushing the limit of my knowledge. It's probably obvious that I am rather new to Sharepoint workflows. I was very much thrust into this position and I am still feeling my way around. Thanks in advance for any help!

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  • Asp.net Dynamic Data - Field not rendered on List page

    - by Christo Fur
    I have created a Dynamic Data site against an Entity Framework Model I have 2 fields which are nvarchar(max) in the DB and they do not get rendered on the list view This is probably a sensible default But how do I overide this? Have tried adding various attributes to my MetaData class e.g [ScaffoldColumn(true)] [UIHint("RuleData")] But no joy with that Any ideas?

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  • Symfony - admin - FormFilter - is empty - i18n

    - by Mailo
    Hi, we are in admin generator in filters in field. What is the most clearest way to translate is empty label under form fields? I've solve it by own setWidgets and setWidgets in BaseFormFilterDoctrine witch extend the parent methods by translating that is empty( empty_label ). setWidgets - translate all *empty_label*s in form filter( for base filter class ) setWidget - translate *empty_label* for one filter field( for the extending filter class ) It works, but i think it's nasty. I am looking for something more clean

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