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  • WPF Binding to DataRow Columns

    - by Trindaz
    Hi, I've taken some sample code from http://sweux.com/blogs/smoura/index.php/wpf/2009/06/15/wpf-toolkit-datagrid-part-iv-templatecolumns-and-row-grouping/ that provides grouping of data in a WPF DataGrid. I'm modifying the example to use a DataTable instead of a Collection of entities. My problem is in translating a binding declaration {Binding Parent.IsExpanded}, which works fine where Parent is a reference to an entity that has the IsExpanded attribute, to something that will work for my weakly typed DataTable, where Parent is the name of a column and references another DataRow in the same DataTable. I've tried declarations like {Binding Parent.Items[IsExpanded]} and {Binding Parent("IsExpanded")} but none of these seem to work. How can I create a binding to the IsExpanded column of the DataRow Parent in my DataTable? Thanks in advance, Dave

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  • Extjs combobox - doQuery callback?

    - by Ben
    Hi there, I'm using the following combobox: var cb = new Ext.form.ComboBox({ store: someDs, fieldLabel: 'test', valueField:'name', displayField:'name_id', typeAhead: true, minChars: 3, triggerAction: 'query' }); So when the user typed in 3 chars, a query to the server is made showing the proper results. Now I try to make the user input programmatically usint the doQuery() function of the combobox. After calling the doQuery() method, I want to seledct an Item via setValue(). cb.doQuery('myval'); cb.setValue('myval'); The problem is that setValue() can't select the propper value, because at the time it is called, the request started through doQuery() hasn't finished. So I need something like a callback in which I could use setValue() - but doQuery() doesn't seem to have a callback function. any ideas? thanks!

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  • asp.net MVC RC1 RenderPartial ViewDataDictionary

    - by Mark79
    I'm trying to pass a ViewData object from a master page to a view user control using the ViewDataDictionary. The problem is the ViewDataDictionary is not returning any values in the view user control whichever way i try it. The sample code below is using an anonymous object just for demonstration although neither this method or passing a ViewData object works. Following is the RenderPartial helper method i'm trying to use: <% Html.RenderPartial("/Views/Project/Projects.ascx", ViewData.Eval("Projects"), new ViewDataDictionary(new { Test = "Mark" })); %> and in my view user control i do the following: <%= Html.Encode(ViewData["Test"]) %> Why does this not return anything? Thanks for your help. EDIT: I'm able to pass and access the stronlgy typed model without any problems. it's the ViewDataDictionary which i'm trying to use to pass say just a single value outside of the model..

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  • flex combobox backspace or delete key does not delete highlighted text

    - by crazy horse
    Context: I am implementing a flex auto-suggest combobox - as the user types in each character: Consider the string 'Stackoverflow' and user input = 'st' 1) the data provider is filtered to show all items starting with 'st' 2) text is set to auto-suggest string such that the un-typed part is highlighted. So for instance, the combobox text may contain st'ackoverflow', where 'ackoverflow' is highlighted using setSelectedIndex() Issue: When I hit back-space or delete, and check the 'this.text' value, I expect that the last un-highlighted character ('t' in the above case) gets deleted and the data provider is filtered to show all items starting with 's'. However the text property contains 'st', as before Question: what am I missing? What else can I try out?

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  • From AutoComplete textbox to database search and display?

    - by svebee
    Hello everyone, I have a small problem so I would be grateful if anyone could help me in any way. Thank you ;) I have this little "application", and I want when someone type in a AutoComplete textbox for example "New" it automatically displays "New York" as a option and that (AutoComplete function) works fine. But I want when user type in full location (or AutoComplete do it for him) - that text (location) input is forwarded to a database search which then searches through database and "collects" all rows with user-typed location. For example if user typed in "New York", database search would find all rows with "New York" in it. When it finds one/more row(s) it would display them below. In images... I have this when user is typing... http://www.imagesforme.com/show.php/1093305_SNAG0000.jpg I have this when user choose a AutoComplete location (h)ttp://www.imagesforme.com/show.php/1093306_SNAG0001.jpg (remove () on the beggining) But I wanna this when user choose a AutoComplete location (h)ttp://www.imagesforme.com/show.php/1093307_CopyofSNAG0001.jpg (remove () on the beggining) Complete Code package com.svebee.prijevoz; import android.app.Activity; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.Bundle; import android.util.Log; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextView; import android.widget.TextView; public class ZelimDoci extends Activity { TextView lista; static final String[] STANICE = new String[] { "New York", "Chicago", "Dallas", "Los Angeles" }; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.zelimdoci); AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.autocomplete_country); ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.list_item, STANICE); textView.setAdapter(adapter); lista = (TextView)findViewById(R.id.lista); SQLiteDatabase myDB= null; String TableName = "Database"; String Data=""; /* Create a Database. */ try { myDB = this.openOrCreateDatabase("Database", MODE_PRIVATE, null); /* Create a Table in the Database. */ myDB.execSQL("CREATE TABLE IF NOT EXISTS " + TableName + " (Field1 INT(3) UNIQUE, Field2 INT(3) UNIQUE, Field3 VARCHAR UNIQUE, Field4 VARCHAR UNIQUE);"); Cursor a = myDB.rawQuery("SELECT * FROM Database where Field1 == 1", null); a.moveToFirst(); if (a == null) { /* Insert data to a Table*/ myDB.execSQL("INSERT INTO " + TableName + " (Field1, Field2, Field3, Field4)" + " VALUES (1, 119, 'New York', 'Dallas');"); myDB.execSQL("INSERT INTO " + TableName + " (Field1, Field2, Field3, Field4)" + " VALUES (9, 587, 'California', 'New York');"); } myDB.execSQL("INSERT INTO " + TableName + " (Field1, Field2, Field3, Field4)" + " VALUES (87, 57, 'Canada', 'London');"); } /*retrieve data from database */ Cursor c = myDB.rawQuery("SELECT * FROM " + TableName , null); int Column1 = c.getColumnIndex("Field1"); int Column2 = c.getColumnIndex("Field2"); int Column3 = c.getColumnIndex("Field3"); int Column4 = c.getColumnIndex("Field4"); // Check if our result was valid. c.moveToFirst(); if (c != null) { // Loop through all Results do { String LocationA = c.getString(Column3); String LocationB = c.getString(Column4); int Id = c.getInt(Column1); int Linija = c.getInt(Column2); Data =Data +Id+" | "+Linija+" | "+LocationA+"-"+LocationB+"\n"; }while(c.moveToNext()); } lista.setText(String.valueOf(Data)); } catch(Exception e) { Log.e("Error", "Error", e); } finally { if (myDB != null) myDB.close(); } } } .xml file <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="20sp" android:gravity="center_horizontal" android:padding="10sp" android:text="Test AutoComplete"/> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:padding="5dp"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="AutoComplete" /> <AutoCompleteTextView android:id="@+id/autocomplete_country" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="5dp"/> </LinearLayout> </LinearLayout>

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  • String contains string in objective-c (iphone)

    - by Jonathan
    How can I check if a string (NSString) contains another smaller string? I was hoping for something like: NSString *string = @"hello bla bla"; NSLog(@"%d",[string containsSubstring:@"hello"]); But the closest I could find was: if ([string rangeOfString:@"hello"] == 0) { NSLog(@sub string doesnt exist") } else { NSLog(@"exists") } I typed that straight into stack so sorry if there are errors, but there would be if I was doing it in Xcode so you don't need to point any out. Anyway is that the best way to find if a string contains another string.

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  • JSF2 - what scope for f:ajax elements?

    - by Konrad Garus
    I have this form: <h:form> <h:outputText value="Tag:" /> <h:inputText value="#{entryRecorder.tag}"> <f:ajax render="category" /> </h:inputText> <h:outputText value="Category:" /> <h:inputText value="#{entryRecorder.category}" id="category" /> </h:form> What I'm trying to achieve: When you type in the "tag" field, the entryRecorder.tag field is updated with what was typed. By some logic upon this action the bean also updates its category field. This change should be reflected in the form. Questions: What scope shall I use for EntryRecorder? Request may not be satisfactory for multiple AJAX requests, while session will not work with multiple browser windows per one session. How can I register my updateCategory() action in EntryRecorder so that it is triggered when the bean is updated?

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  • JMeter to grab full querystring into a variable for future use

    - by jfbauer
    Someone provided me the regex to parse out a query string: (?<=\?)[^?]+$ I am trying to use that in JMeter with no luck (although I am successful in pulling out individual query string parameter values based on various example postings on the web). I created a regular expression extractor called "Grab QueryString". I selected the URL response field to check. For the reference name, I typed "myQueryString". For the regular expression, I entered your text. For template, I entered $1$ Match no = 1 Default Value = ERROR Unfortunately, "myQueryString" is getting populated with ERROR and not the URL query string as hoped when I try and use it as a parameter in a future GET. Thus, I see this in the "View Results Tree": https:/www.website.com/folder/page.aspx?ERROR Instead of: https:/www.website.com/folder/page.aspx?jfhjHSDjgdjhsjhsdhjSJHWed Did I do something wrong? Anyone have any suggestions?

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  • Hashtable with MultiDimensional Key in C#

    - by scottschulthess
    I'm basically looking for a way to access a hashtable value using a two-dimensional typed key in c#. Eventually I would be able to do something like this HashTable[1][false] = 5; int a = HashTable[1][false]; //a = 5 This is what I've been trying...hasn't worked Hashtable test = new Hashtable(); test.Add(new Dictionary<int, bool>() { { 1, true } }, 555); Dictionary<int, bool> temp = new Dictionary<int, bool>() {{1, true}}; string testz = test[temp].ToString();

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  • Controlling FPU behavior in an OpenMP program?

    - by STingRaySC
    I have a large C++ program that modifies the FPU control word (using _controlfp()). It unmasks some FPU exceptions and installs a SEHTranslator to produce typed C++ exceptions. I am using VC++ 9.0. I would like to use OpenMP (v.2.0) to parallelize some of our computational loops. I've already successfully applied it to one, but the numerical results are slightly different (though I understand it could also be due to calculations being performed in a different order). I'm assuming this is because the FPU state is thread-specific. Is there some way to have the OpenMP threads inherit that state from the master thread? Or is there some way to specify using OpenMP that new threads execute a particular function that sets up the correct state? What is the idiomatic way to deal with this situation?

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  • Generate POCO classes in different project to the project with Entity Framework model

    - by Max
    I'm trying to use the Repository Pattern with EF4 using VS2010. To this end I am using POCO code generation by right clicking on the entity model designer and clicking Add code generation item. I then select the POCO template and get my classes. What I would like to be able to do is have my solution structured into separate projects for Entity (POCO) classes and another project for the entity model and repository code. This means that my MVC project could use the POCO classes for strongly typed views etc and not have to know about the repository or have to have a reference to it. To plug it all together I will have another separate project with interfaces and use IoC. Sounds good in my head I just don't know how to generate the classes into their own project! I can copy them and then change the namespaces on them but I wanted to avoid manual work whenever I change the schema in the db and want to update my model. Thanks

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  • Does Java support dynamic method invocation?

    - by eSKay
    class A { void F() { System.out.println("a"); }} class B extends A { void F() { System.out.println("b"); }} public class X { public static void main(String[] args) { A objA = new B(); objA.F(); } } Here, F() is being invoked dynamically, isn't it? This article says ... the Java bytecode doesn’t support dynamic method invocation. There are three supported invocations modes : invokestatic, invokespecial, invokeinterface or invokevirtual. These modes allows to call methods with known signature. We talk of strongly typed language. This allows to to make some checks directly at compile time. On the other side, the dynamic languages use dynamic types. So we can call a method unknown at the compile time, but that’s completely impossible with the Java bytecode. What am I missing?

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  • Ambiguous call between methods ASP.NET MVC

    - by GuiPereira
    I'm pretty new in ASP.NET MVC (about 3 months) and i've the followin issue: I have a Entity Class called 'Usuario' in a ClassLibrary referenced as 'Core' and, when i create a strongly-typed view and add a html.textboxfor< like: <%= Html.TextBoxFor(u => u.Login) %> it raises the following error: Error 3 The call is ambiguous between the following methods or properties: 'Microsoft.Web.Mvc.ExpressionInputExtensions.TextBoxFor<Core.Usuario,string>(System.Web.Mvc .HtmlHelper<Core.Usuario>, System.Linq.Expressions.Expression<System.Func<Core.Usuario,string>>)' and 'System.Web.Mvc.Html.InputExtensions.TextBoxFor<Core.Usuario,string>(System.Web.Mvc.HtmlHel per<Core.Usuario>, System.Linq.Expressions.Expression<System.Func<Core.Usuario,string>>)' d:\Documents\Visual Studio 2008\Projects\GuiPereiraMVC2\GuiPereiraMVC2\Views\Gestao\Index.aspx 20 25 GuiPereiraMVC2 anyone knows why?

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  • SQLite3's dynamic typing

    - by Bradford Larsen
    SQLite3 uses dynamic typing rather than static typing, in contrast to other flavors of SQL. The SQLite website reads: Most SQL database engines (every SQL database engine other than SQLite, as far as we know) uses static, rigid typing. With static typing, the datatype of a value is determined by its container - the particular column in which the value is stored. SQLite uses a more general dynamic type system. In SQLite, the datatype of a value is associated with the value itself, not with its container. It seems to me that this is exactly what you don't want, as it lets you store, for example, strings in integer columns. The page continues: ...the dynamic typing in SQLite allows it to do things which are not possible in traditional rigidly typed databases. I have two questions: The use case question: What are some examples where sqlite3's dynamic typing is, in fact, beneficial? The historical/design question: What was the motivation for implementing sqlite with dynamic typing?

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  • Technique for ensuring HTML- and URL-encoding

    - by JW
    Has anyone implemented a good template system for ensuring that output is properly HTML-encoded where it makes sense? Maybe even something that recognizes when output should be URL-encoded or JSON-encoded instead? The lazy approach — just encoding all inputs — causes problems when you want to send those inputs to a database, or to a block of JavaScript code. So something a little smarter is needed. The tedious approach — putting the proper encoding function around each piece of data on the template — works, but it's easy for developers to forget to do it. Is there a good approach that makes it easy for developers, and ensures that the right encoding is done? I was listening to one of the SO podcasts, and Joel tossed out an idea about using typed data to enforce a difference between HTML-encoded strings and non-encoded strings. Maybe that could be a starting point. I'm looking more for a strategy than for an implementation in a particular language (although I'd be happy to hear about implementations that already exist and work).

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  • jQuery number seperator - Seperate number by each 1.000

    - by Kim Andersen
    Hi I'm developing a new site, and in here it's possible for the user to type in a price in a input-textfield. So what I need is some jQuery-code to transforn the typed in price. This means, that when a user types in "1000", the vissible text in the input field shall automatically be transformed to "1.000" - with a period. And if they type in "10000" it should be transformed to "10.000" etc. You can see a live example on this website I found: http://www.boligsiden.dk/ I know it's on danish, but on the frontpage under the map, there are to input fields. One of them is saying "Minimum kontaktpris". You can try to type in a number in here, and see the effect that I'm looking for. Does anybody know how I can achieve this? Either by a jQuery plugin, or by some "homemade"-code? Thanks in advance. /Kim Andersen

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  • WPF DataGridTextColumn Can't type point for float data

    - by Alvin
    I had a WPF DataGrid and use DataGridTextColumn Binding to a Collection. The items in Collection had some float property. When my program launched, I modify the value of float property in DataGrid, if I type a integer value, it works well. But if I type char . for a float value, char . can't be typed. I had to type all the numbers first, and then jump to the . position to type char . to finish my input. So how can I type . in my situation? Thanks.

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  • Using NHibernate with an EAV data model

    - by devonlazarus
    I'm trying to leverage NH to map to a data model that is a loose interpretation of the EAV/CR data model. I have most of it working but am struggling with mapping the Entity.Attributes collection. Here are the tables in question: -------------------- | Entities | -------------------- | EntityId PK |-| | EntityType | | -------------------- | ------------- | V -------------------- | EntityAttributes | ------------------ --------------------------- -------------------- | Attributes | | StringAttributes | | EntityId PK,FK | ------------------ --------------------------- | AttributeId FK | -> | AttributeId PK | -> | StringAttributeId PK,FK | | AttributeValue | | AttributeType | | AttributeName | -------------------- ------------------ --------------------------- The AttributeValue column is implemented as an sql_variant column and I've implemented an NHibernate.UserTypes.IUserType for it. I can create an EntityAttribute entity and persist it directly so that part of the hierarchy is working. I'm just not sure how to map the EntityAttributes collection to the Entity entity. Note the EntityAttributes table could (and does) contain multiple rows for a given EntityId/AttributeId combination: EntityId AttributeId AttributeValue -------- ----------- -------------- 1 1 Blue 1 1 Green StringAttributes row looks like this for this example: StringAttributeId AttributeName ----------------- -------------- 1 FavoriteColor How can I effectively map this data model to my Entity domain such that Entity.Attributes("FavoriteColors") returns a collection of favorite colors? Typed as System.String?

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  • Preserving DataRowState when serializing DataSet using DataContractSerializer

    - by user349453
    For various reasons I am having to send a typed dataset to a WCF service endpoint. This works fine except that upon Deserializing, the RowState of each row in each DataTable is set to 'Added', regardless of what they were on the client. If I write the serialized stream out to a file, I see that the RowState is not part of the Serialized data. How can I add this so that I can preserve the RowState across service boundaries? Not that I think it matters, but the client process is running .net 3.5 while the service process is running .net 4.0

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  • Entity Framework 4 relationship management in POCO Templates - More lazy than FixupCollection?

    - by Joe Wood
    I've been taking a look at EF4 POCO templates in beta 2. The FixupCollection looks fine for maintaining the model correctness after updating the relationship collection property (i.e. product.Orders it would set the order.Product reference ). But what about support for handling the scenario when some of those Order objects are removed from the context? The use-case of maintaining cascading deletes in the in-memory model. The old Typed DataSet model used to do this by performing the query through the container to derive the relationship results. Like the DataSet, this would require a reference to the ObjectContext inside the entity class so that it could query the top-level Order collection. Better support for Separation of Concerns in the ObjectContext would be required. It looks like EF is not suited to this use-case that DataSets did out of the box.... am I right?

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  • HTML encode UTF-8 string gets mangled into latin1

    - by Ken Mayer
    I'm parsing my nginx logs, and I want to discover some details from the HTTP_REFERER string, for example, the query string used to find the web site. One user typed in "México" which gets encoded in the log as "query=M%E9xico". Passing this through Rack::Utils.parse_query('query=M%E9xico') you get a hash, {"query" = "M?xico"} When you to stuff "M?exico" into Postgres (but not the more forgiving SQLite), it pukes because the string isn't proper UTF-8. Looking at http://rack.rubyforge.org/doc/Rack/Utils.html#M000324, unescape is packing a hex string. How can I convert the string back to UTF-8, or can I get parse_query to return UTF-8 in the first place.

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  • Python serialize lexical closures?

    - by dsimcha
    Is there a way to serialize a lexical closure in Python using the standard library? pickle and marshal appear not to work with lexical closures. I don't really care about the details of binary vs. string serialization, etc., it just has to work. For example: def foo(bar, baz) : def closure(waldo) : return baz * waldo return closure I'd like to just be able to dump instances of closure to a file and read them back. Edit: One relatively obvious way that this could be solved is with some reflection hacks to convert lexical closures into class objects and vice-versa. One could then convert to classes, serialize, unserialize, convert back to closures. Heck, given that Python is duck typed, if you overloaded the function call operator of the class to make it look like a function, you wouldn't even really need to convert it back to a closure and the code using it wouldn't know the difference. If any Python reflection API gurus are out there, please speak up.

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  • Html index page and files in that directory

    - by Frank
    On my web site, there is an index page, but if I take out that index page, users will see the files in that directory, for instance my site is : XYZ.com and I have a directory called "My_Dir", so when a user typed in "XYZ.com/My_Dir" he will see the index.html if there is one, but if it's not there, he will see a list of all my files inside "My_Dir", so is it safe to assume that with an index page in any of my sub directories, I can hide all the files in those directories from users, in other words if I have "123.txt, abc.html and index.html" in "My_Dir", users won't be able to see "123.txt, abc.html" because of the existence of "index.html" [ unless of course I mention those two files inside index.html ] ? Frank

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  • mvc presentation model best-practices

    - by Andrew Florko
    Hello, everybody How do you usually convert business objects to presentation? For example: Business object Person { Id, FirstName, LastName, Patronymic ... } should be presented as "LastName F. P. " in html layout. We use Presentation classes hierarchy to represent data ready for output from Business model. Questions: Will you keep presentation model completely separated from Business Model. For example, can strong-typed views (MVC ASP.NET) aggregate formatted business data as well as raw business objects (that leads toward <%=Html.Encode(PersonHelper.ToShort(Model.Person))% html layout injections) What architecture layer do you choose for conversion (mvc controllers that formats business data from business layer, for instance). Thank you in advance

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  • Whats the KeyCode for overwriting a text in TextBox in winforms

    - by Ragha J
    I have a custom control which extends from TextBox. In the KeyDown event of the control I have access to the KeyCode property of keyEventArgs If the text in the textbox is selected and some other text is typed on top of it, the keyCodes that I am getting in the KeyDown event are different each time and in the KeyPress event I get the actual value. For ex: If the textbox has value 1234 and now I select 1234 and type 5 on top of it, I want to to be able to know in any of the events by some key combination that the old value 1234 is gone and the new value of the textbox is 5.

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