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• Microsoft JScript runtime error: Sys.InvalidOperationException: Two components with the same id.

  - by Irwin

  I'm working in ASP .NET dynamic data. In one of my edit controls I wanted to allow the user to add records from a related table to the current page. (Literally, if you are on the orders page, you would be allowed to add a new customer to the system on this page as well, and then associate it with that order). So, I have a DetailsView set to InsertMode, nested inside of an UpdatePanel, which is shown by a ModalPopupExtender which is invoked when 'add new' is clicked. This doohickey works the first time i execute this process, that is, a customer is added (and i update the dropdown list as well). However, I realized it didn't work (properly) again until I refreshed the entire page. When I attached my debugger, my worst fears were realized (ok, not really). But an exception was being thrown: "Microsoft JScript runtime error: Sys.InvalidOperationException: Two components with the same id." Which seemed to be complaining about a Calendar Extender Control that is part of the details view. Any guidance on what's going on here would be great. Thanks.

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• Having problem dynamically invoking unmanaged VB COM dll from c#?

  - by Ramesh Vel

  I have a problem calling unmanaged VB COM dll from c#. This is dynamic invocation using loadLibrary and GetProcAddress. I can successfully loaded the dll using loadLibrary , but the GetProcAddress always return 0. It wasnt log any error msg and nothing. it just returns 0. below the sample code VB COM VERSION 1.0 CLASS BEGIN MultiUse = -1 Persistable = 0 DataBindingBehavior = 0 DataSourceBehavior = 0 MTSTransactionMode = 0 END Attribute VB_Name = "Sample" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = True Attribute VB_PredeclaredId = False Attribute VB_Exposed = True Option Explicit Private Attribute1 As String Private Sub Class_Initialize() Attribute1 = "test" End Sub Public Sub TestSub() End Sub Public Function testFunction() As String testFunction = "default.html" End Function Public Function SetData(XML As String) As String SetData = Date + Time End Function c# code static class UnManagedInvoker { [DllImport("kernel32.dll")] private static extern IntPtr LoadLibrary([MarshalAs(UnmanagedType.LPStr)] string dllToLoad); [DllImport("kernel32.dll")] private static extern IntPtr GetProcAddress(IntPtr hModule, [MarshalAs(UnmanagedType.LPStr)] string procedureName); [DllImport("kernel32.dll")] private static extern bool FreeLibrary(IntPtr hModule); [UnmanagedFunctionPointer(CallingConvention.Cdecl)] public delegate string MethodToInvoke(string sdata); public static string InvokeUnmanagedDll(string dllPath, string methodName) { IntPtr DIedDll = LoadLibrary(dllPath); IntPtr AddressOfFunction = GetProcAddress(DIedDll, methodName); MethodToInvoke MI = (MethodToInvoke)Marshal.GetDelegateForFunctionPointer(AddressOfFunction, typeof(MethodToInvoke)); string data = MI("ssdasda"); FreeLibrary(DIedDll); return data; } } And the calling code string res = UnManagedInvoker.InvokeUnmanagedDll("xx.dll","SetData"); Can someone help me out.. Update: I can successfully call the methods if the component is registered. using the below code Type Med = Type.GetTypeFromCLSID(new Guid("089DD8B0-E12B-439B-B52C-007CA72C93D0")); object MedObj = Activator.CreateInstance(Med); object[] parameter = new object[1]; parameter[0] = "asdasd"; var ss = Med.InvokeMember("SetData", System.Reflection.BindingFlags.InvokeMethod, null, MedObj, parameter); is there a way if the dll not registered.?

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• sample java code for approximate string matching or boyer-moore extended for approximate string matc

  - by Dolphin

  Hi I need to find 1.mismatch(incorrectly played notes), 2.insertion(additional played), & 3.deletion (missed notes), in a music piece (e.g. note pitches [string values] stored in a table) against a reference music piece. This is either possible through exact string matching algorithms or dynamic programming/ approximate string matching algos. However I realised that approximate string matching is more appropriate for my problem due to identifying mismatch, insertion, deletion of notes. Or an extended version of Boyer-moore to support approx. string matching. Is there any link for sample java code I can try out approximate string matching? I find complex explanations and equations - but I hope I could do well with some sample code and simple explanations. Or can I find any sample java code on boyer-moore extended for approx. string matching? I understand the boyer-moore concept, but having troubles with adjusting it to support approx. string matching (i.e. to support mismatch, insertion, deletion). Also what is the most efficient approx. string matching algorithm (like boyer-moore in exact string matching algo)? Greatly appreciate any insight/ suggestions. Many thanks in advance

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• How does symbol binding work for shared libraries in linux

  - by bbazso

  When compiling a cpp program with g++ -O0 I noticed that my binary does not contain the symbol for the empty string (basic_string): _S_empty_rep_storage When I do compile this same program with -O2 I notice that the aforementioned symbol is indeed contained within the binary as follows (using nm on the bin): 00000000006029a0 V _ZNSs4_Rep20_S_empty_rep_storageE@@GLIBCXX_3.4 My application uses several .so (dynamic libraries) and when my aplication loads I notice that several of these .so files bind as follows (I set LD_DEBUG=all and ran my program): 28596: binding file /home/bbazso/usr/local/lib/mydynamiclib.so [0] to /usr/lib64/libstdc++.so.6 [0]: normal symbol `_ZNSs4_Rep20_S_empty_rep_storageE' [GLIBCXX_3.4] 28596: binding file /home/bbazso/usr/local/lib/mydynamiclib.so [0] to /home/bbazso/workspace/mytestapplication [0]: normal symbol `_ZNSs4_Rep20_S_empty_rep_storageE' [GLIBCXX_3.4] 28596: binding file /home/bbazso/workspace/mytestapplication [0] to /usr/lib64/libstdc++.so.6 [0]: normal symbol `_ZNSs4_Rep20_S_empty_rep_storageE' [GLIBCXX_3.4]** But I also noticed that one of my .so only binds as follows: 28087: binding file /home/bbazso/usr/local/lib/anotherdynamiclib.so [0] to /usr/lib64/libstdc++.so.6 [0]: normal symbol `_ZNSs4_Rep20_S_empty_rep_storageE' [GLIBCXX_3.4] but never binds to the binary (mytestapplication) as shown above for the mydynamiclib.so. So I was wondering what this actually means? Does this mean that anotherdynamiclib.so will use a different symbol for the empty string above than the rest of the application? I guess what I'm really asking is how does symbol binding work in the context of the example above? Thanks!

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• Unknown error in the memory in C

  - by Sergey Gavruk

  I have a 2D dynamic array. I enter a line of 0's after line which has a biggest number: void InsertZero(int **a, int pos){ int i, j; a = (int**)realloc(a, n * sizeof(*a)); a[n-1] = (int*)calloc(n, sizeof(**a)); d = 0; for(i = n-1; i > pos; i--){ for(j = 0; j < n; j++){ a[i][j] = a[i-1][j]; printf("%d ", a[i][j]); } } for(i = 0; i < n; i++){ a[pos][i] = 0; } } If i make a size of array 3, 5, 7, 9, ... it works correctly. But if a number of lines is 2, 4, 6, ... , it is an access violation error, when i try to print my array: void Print(void){ int i, j; for(i = 0; i < (n-d); i++){ for(j = 0; j < n; j++){ printf("%d\t", arr[i][j]); } printf("\n"); } } code: http://codepad.org/JcUis6W4

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• recursively implementing 'minimum number of coins' in python

  - by user5198

  This problem is same as asked in here. Given a list of coins, their values (c1, c2, c3, ... cj, ...), and the total sum i. Find the minimum number of coins the sum of which is i (we can use as many coins of one type as we want), or report that it's not possible to select coins in such a way that they sum up to S. I"m just introduced to dynamic programming yesterday and I tried to make a code for it. # Optimal substructure: C[i] = 1 + min_j(C[i-cj]) cdict = {} def C(i, coins): if i <= 0: return 0 if i in cdict: return cdict[i] else: answer = 1 + min([C(i - cj, coins) for cj in coins]) cdict[i] = answer return answer Here, C[i] is the optimal solution for amount of money 'i'. And available coins are {c1, c2, ... , cj, ...} for the program, I've increased the recursion limit to avoid maximum recursion depth exceeded error. But, this program gives the right answer only someones and when a solution is not possible, it doesn't indicate that. What is wrong with my code and how to correct it?

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• java class creation dynamically and make it accessible across the network different jvms i.e. serial

  - by inj.rav

  Hi. I have a requirement of creating java classes dynamically and make it accessible different jvms across the network. I tried to use reflection and javassist tool,but nothing worked. Let me explain the scenario we are using Coherence distributed cache. It has a power of doing aggregation/filtering in parallel across the cluster. For example if a class has [dynamic class] has amount variable and getAmount/setAmount methods. Then if we execute COHERENCE queries, it will start process in parallel across the cluster. I tried to create classes at run time by using javassist and reflection. I am able to access it from single JVM, but when I tried to access the same class from other jvm [through coherence cluster]. I am getting exception of class not found [as remote jvm is not having idea of this class].I can over come this by creating same class dynamically on remote jvm also and access the methods. But coherence in built methods/functions are not able to find the class. could some one help me on this matter

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• Ignore LD_LIBRARY_PATH and stick with library given through -rpath at link time

  - by roe

  I'm sitting in an environment which I have no real control over (it's not just me, so basically, I can't change the environment or it won't work for anyone else), the only thing I can affect is how the binary is built. My problem is, the environment specifies an LD_LIBRARY_PATH containing a libstdc++ which is not compatible with the compiler being used. I tried compiling it statically, but that doesn't seem possible for g++ (version 4.2.3, seems to have been work done in this direction in later versions though which are not available, -static-libstdc++ or something like that). Now I've arrived at using rpath to bake the absolute path name into the executable (would work, all machines it's supposed to run on are identical). Unfortunately it appears as though LD_LIBRARY_PATH takes precedence over rpath (resetting LD_LIBRARY_PATH confirmed that it's able to find the library, but as stated above, LD_LIBRARY_PATH will be set for everyone, and I cannot change that). Is there any way I can make rpath take precedence over LD_LIBRARY_PATH, or are there any other possible solutions to my problem? Note that I'm talking about dynamic linking at runtime, I am able to control the command line at compile and link time. Thanks.

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• what is the point of heterogenous arrays?

  - by aharon

  I know that more-dynamic-than-Java languages, like Python and Ruby, often allow you to place objects of mixed types in arrays, like so: ["hello", 120, ["world"]] What I don't understand is why you would ever use a feature like this. If I want to store heterogenous data in Java, I'll usually create an object for it. For example, say a User has int ID and String name. While I see that in Python/Ruby/PHP you could do something like this: [["John Smith", 000], ["Smith John", 001], ...] this seems a bit less safe/OO than creating a class User with attributes ID and name and then having your array: [<User: name="John Smith", id=000>, <User: name="Smith John", id=001>, ...] where those <User ...> things represent User objects. Is there reason to use the former over the latter in languages that support it? Or is there some bigger reason to use heterogenous arrays? N.B. I am not talking about arrays that include different objects that all implement the same interface or inherit from the same parent, e.g.: class Square extends Shape class Triangle extends Shape [new Square(), new Triangle()] because that is, to the programmer at least, still a homogenous array as you'll be doing the same thing with each shape (e.g., calling the draw() method), only the methods commonly defined between the two.

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• How to parse text as JavaScript?

  - by Danjah

  This question of mine (currently unanswered), drove me toward finding a better solution to what I'm attempting. My requirements: chunks of code which can be arbitrarily added into a document, without an identifier: [div class="thing"] [elements... /] [/div] the objects are scanned for and found by an external script: var things = yd.getElementsBy(function(el){ return yd.hasClass('thing'); },null,document ); the objects must be individually configurable, what I have currently is identifier-based: [div class="thing" id="thing0"] [elements... /] [script type="text/javascript"] new Thing().init({ id:'thing0'; }); [/script] [/div] So I need to ditch the identifier (id="thing0") so there are no duplicates when more than one chunk of the same code is added to a page I still need to be able to config these objects individually, without an identifier SO! All of that said, I wondered about creating a dynamic global variable within the script block of each added chunk of code, within its script tag. As each 'thing' is found, I figure it would be legit to grab the innerHTML of the script tag and somehow convert that text into a useable JS object. Discuss. Ok, don't discuss if you like, but if you get the drift then feel free to correct my wayward thinking or provide a better solution - please! d

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• Dynamically adding controls from an Event after Page_Init

  - by GenericTypeTea

  Might seem like a daft title as you shouldn't add dynamic controls after Page_Init if you want to maintain ViewState, but I couldn't think of a better way of explaining the problem. I have a class similar to the following: public class WebCustomForm : WebControl, IScriptControl { internal CustomRender Content { get { object content = this.Page.Session[this.SESSION_CONTENT_TRACKER]; return content as CustomRender; } private set { this.Page.Session[this.SESSION_CONTENT_TRACKER] = value; } } } CustomRender is an abstract class that implements ITemplate that I use to self-contain a CustomForms module I'm in the middle of writing. On the Page_Init of the page that holds the WebCustomForm, I Initialise the control by passing the relevant Ids to it. Then on the overridden OnInit method of the WebCustomForm I call the Instantiate the CustomRender control that's currently active: if (this.Content != null) { this.Content.InstantiateIn(this); } The problem is that my CustomRender controls need the ability to change the CustomRender control of the WebCustomForm. But when the events that fire on the CustomRender fire, the Page_Init event has obviously already gone off. So, my question is, how can I change the content of the WebCustomForm from a dynamically added control within it? The way I see it, I have two options: I separate the CustomRender controls out into their own stand alone control and basically have an aspx page per control and handle the events myself on the page (although I was hoping to just make a control I drop on the page and forget about) I don't use events and just keep requesting the current page, but with different Request Parameters Or I go back to the drawing board with any better suggetions anyone can give me.

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• Which frameworks (and associated languages) support class replacement?

  - by Alix

  Hi, I'm writing my master thesis, which deals with AOP in .NET, among other things, and I mention the lack of support for replacing classes at load time as an important factor in the fact that there are currently no .NET AOP frameworks that perform true dynamic weaving -- not without imposing the requirement that woven classes must extend ContextBoundObject or MarshalByRefObject or expose all their semantics on an interface. You can however do this with the JVM thanks to ClassFileTransformer: You extend ClassFileTransformer. You subscribe to the class load event. On class load, you rewrite the class and replace it. All this is very well, but my project director has asked me, quite in the last minute, to give him a list of frameworks (and associated languages) that do / do not support class replacement. I really have no time to look for this now: I wouldn't feel comfortable just doing a superficial research and potentially putting erroneous information in my thesis. So I ask you, oh almighty programming community, can you help out? Of course, I'm not asking you to research this yourselves. Simply, if you know for sure that a particular framework supports / doesn't support this, leave it as an answer. If you're not sure please don't forget to point it out. Thanks so much!

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• Which languages support class replacement?

  - by Alix

  Hi, I'm writing my master thesis, which deals with AOP in .NET, among other things, and I mention the lack of support for replacing classes at load time as an important factor in the fact that there are currently no .NET AOP frameworks that perform true dynamic weaving -- not without imposing the requirement that woven classes must extend ContextBoundObject or MarshalByRefObject or expose all their semantics on an interface. You can however do this in Java thanks to ClassFileTransformer: You extend ClassFileTransformer. You subscribe to the class load event. On class load, you rewrite the class and replace it. All this is very well, but my project director has asked me, quite in the last minute, to give him a list of languages that do / do not support class replacement. I really have no time to look for this now: I wouldn't feel comfortable just doing a superficial research and potentially putting erroneous information in my thesis. So I ask you, oh almighty programming community, can you help out? Of course, I'm not asking you to research this yourselves. Simply, if you know for sure that a particular language supports / doesn't support this, leave it as an answer. If you're not sure please don't forget to point it out. Thanks so much!

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• computes the number of possible orderings of n objects under the relations < and =

  - by hilal

  Here is the problem : Give a algorithm that takes a positive integer n as input, and computes the number of possible orderings of n objects under the relations < and =. For example, if n = 3 the 13 possible orderings are as follows: a = b = c, a = b < c, a < b = c, a < b < c, a < c < b, a = c < b, b < a = c, b < a < c, b < c < a, b = c < a, c < a = b, c < a < b, c < b < a. Your algorithm should run in time polynomial in n. I'm null to this problem. Can you find any solution to this dynamic-programming problem?

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• Parallelize or vectorize all-against-all operation on a large number of matrices?

  - by reve_etrange

  I have approximately 5,000 matrices with the same number of rows and varying numbers of columns (20 x ~200). Each of these matrices must be compared against every other in a dynamic programming algorithm. In this question, I asked how to perform the comparison quickly and was given an excellent answer involving a 2D convolution. Serially, iteratively applying that method, like so list = who('data_matrix_prefix*') H = cell(numel(list),numel(list)); for i=1:numel(list) for j=1:numel(list) if i ~= j eval([ 'H{i,j} = compare(' char(list(i)) ',' char(list(j)) ');']); end end end is fast for small subsets of the data (e.g. for 9 matrices, 9*9 - 9 = 72 calls are made in ~1 s). However, operating on all the data requires almost 25 million calls. I have also tried using deal() to make a cell array composed entirely of the next element in data, so I could use cellfun() in a single loop: # who(), load() and struct2cell() calls place k data matrices in a 1D cell array called data. nextData = cell(k,1); for i=1:k [nextData{:}] = deal(data{i}); H{:,i} = cellfun(@compare,data,nextData,'UniformOutput',false); end Unfortunately, this is not really any faster, because all the time is in compare(). Both of these code examples seem ill-suited for parallelization. I'm having trouble figuring out how to make my variables sliced. compare() is totally vectorized; it uses matrix multiplication and conv2() exclusively (I am under the impression that all of these operations, including the cellfun(), should be multithreaded in MATLAB?). Does anyone see a (explicitly) parallelized solution or better vectorization of the problem?

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• Pass Arguments to Included Module in Ruby?

  - by viatropos

  I'm hoping to implement something like all of the great plugins out there for ruby, so that you can do this: acts_as_commentable has_attached_file :avatar But I have one constraint: That helper method can only include a module; it can't define any variables or methods. The reason for this is because, I want the options hash to define something like type, and that could be converted into one of say 20 different 'workhorse' modules, all of which I could sum up in a line like this: def dynamic_method(options = {}) include ("My::Helpers::#{options[:type].to_s.camelize}").constantize(options) end Then those 'workhorses' would handle the options, doing things like: has_many "#{options[:something]}" Here's what the structure looks like, and I'm wondering if you know the missing piece in the puzzle: # 1 - The workhorse, encapsuling all dynamic variables module My::Module def self.included(base) base.extend ClassMethods base.class_eval do include InstanceMethods end end module InstanceMethods self.instance_eval %Q? def #{options[:my_method]} "world!" end ? end module ClassMethods end end # 2 - all this does is define that helper method module HelperModule def self.included(base) base.extend(ClassMethods) end module ClassMethods def dynamic_method(options = {}) # don't know how to get options through! include My::Module(options) end end end # 3 - send it to active_record ActiveRecord::Base.send(:include, HelperModule) # 4 - what it looks like class TestClass < ActiveRecord::Base dynamic_method :my_method => "hello" end puts TestClass.new.hello #=> "world!" That %Q? I'm not totally sure how to use, but I'm basically just wanting to somehow be able to pass the options hash from that helper method into the workhorse module. Is that possible? That way, the workhorse module could define all sorts of functionality, but I could name the variables whatever I wanted at runtime.

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• Html.Editor() helper in ASP.NET MVC 3 does not work as expected with array in model

  - by SlimShaggy

  In my ASP.NET MVC 3 application I have classes like the following: public class Localization<T> { public int VersionID { get; set; } public T Value { get; set; } ... } public class Localizable<T> { public Localization<T>[] Name { get; set; } ... } Then, I have the following view: @model dynamic ... @for (int i = 0; i < VersionCount; i++) { ... @Html.Editor(string.Format("Name[{0}.Value", i)) ... } Now, when I display this view, passing a subclass of Localizable<string> as the model, the textboxes for the strings are rendered, but they are empty. If I replace @Html.Editor(string.Format("Name[{0}.Value", i)) with @InputExtensions.TextBox(Html, string.Format("Name[{0}].Value", i), Model.Name[i].Value), the textboxes are correctly filled with values from the model. However, using TextBox instead of Editor is not an option for me, because I want to use different editor templates for different types of T. So, what am I doing wrong, or is it a bug in MVC, and is there any workaround?

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• What is the best way get and hold property reference by name in c#

  - by Jeff Weber

  I want to know if there is a better way (than what I'm currently doing) to obtain and hold a reference to a property in another object using only the object and property string names. Particularly, is there a better way to do this with the new dynamic functionality of .Net 4.0? Here is what I have right now. I have a "PropertyReference<T>" object that takes an object name and property name in the constructor. An Initialize() method uses reflection to find the object and property and stores the property Getter as an Action<T> and the property Setter as an Func<T>. When I want to actually call the property I do something like this: int x = _propertyReference.Get(); or _propertyReference.Set(2); Here is my PropertyReference<T> code. Please dissect and make suggestions for improvement. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Reflection; using System.Xml; namespace WindowsFormsApplication2 { public class PropertyReference<T> : IPropertyReference { public string ComponentName { get; set; } public string PropertyName { get; set; } public bool IsInitialized { get { return (_action != null && _func != null); } } Action<T> _action; Func<T> _func; public PropertyReference() { } public PropertyReference(string componentName, string propertyName) { ComponentName = componentName; PropertyName = propertyName; } public void Initialize(IEntity e) { Object component = e.GetByName(ComponentName); if (component == null) return; Type t = e.GetByName(ComponentName).GetType(); PropertyInfo pi = t.GetProperty(PropertyName); _action = (T a) => pi.SetValue(component, a, null); _func = () => (T)pi.GetValue(component, null); } public void Reset() { _action = null; _func = null; } public void Set(T value) { _action.Invoke(value); } public T Get() { return _func(); } } } Note: I can't use the "Emit" functionality as I need this code to work on the new Windows Phone 7 and that does not support Emit.

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• How can I execute an insert with data from a repeater-generated form whose data source is SQL?

  - by Duke

  I'm storing multilingual data in a database whose model is language normalized (like this). For this particular problem the key for the table in question consists of a value entered by the user and a language from the language table. I'd like to dynamically generate a form with input fields for all available languages. The user inputs a key value then goes down a list of field sets filling out the information in each language. In this case there are two fields for every language, a name and a value (the value is language dependent.) I have all existing information displayed on the page with a gridview, below which I have a formview that is always in insert mode allowing the user to enter new data. Within the formview I have a repeater with an SQLDataSource that gets a list of available languages: <asp:Repeater ID="SessionLocaleRepeater" runat="server" DataSourceID="LocaleSQLDataSource" EnableViewState="false"> <ItemTemplate> <tr> <th scope="row"><%# DataBinder.Eval(Container.DataItem, "LocaleName") %></th> <td>Name:</td> <td><asp:TextBox ID="TextBox1" runat="server" Text="" /></td> <td>Number:</td> <td><asp:TextBox ID="TextBox2" runat="server" Text="" /></td> </tr> </ItemTemplate> </asp:Repeater> I figured that in order to insert this data I'd have to execute my sql server insert stored procedure for each item in the repeater; I am trying to use the formview inserting event. The problem is that the repeater isn't databound to the SQLDataSource until after the formview inserting event (inserting event is in PostBackEvent and databind is in PreRender), which means the controls and data are not available when the inserting event is fired. I tried databinding the repeater during the formview inserting event; the controls were available but the data was not. Would this have something to do with how/when the viewstate information is re-added to the controls? From what I've read, Viewstate is one of the first things to be restored. Given the order of events how can I get the data I need for the insert? I'm open to other solutions to creating dynamic input controls, but they will have to query the database to determine how many sets of controls to create.

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• Ext JS Tab Panel - Dynamic Tabs - Tab Exists Not Working

  - by Joey Ezekiel

  Hi Would appreciate if somebody could help me on this. I have a Tree Panel whose nodes when clicked load a tab into a tab panel. The tabs are loading alright, but my problem is duplication. I need to check if a tab exists before adding it to the tab panel. I cant seem to have this resolved and it is eating my brains. This is pretty simple and I have checked stackoverflow and the EXT JS Forums for solutions but they dont seem to work for me or I'm being blind. This is my code for the tree: var opstree = new Ext.tree.TreePanel({ renderTo: 'opstree', border:false, width: 250, height: 'auto', useArrows: false, animate: true, autoScroll: true, dataUrl: 'libs/tree-data.json', root: { nodeType: 'async', text: 'Tool Actions' }, listeners: { render: function() { this.getRootNode().expand(); } } }) opstree.on('click', function(n){ var sn = this.selModel.selNode || {}; // selNode is null on initial selection renderPage(n.id); }); function renderPage(tabId) { var TabPanel = Ext.getCmp('content-tab-panel'); var tab = TabPanel.getItem(tabId); //Ext.MessageBox.alert('TabGet',tab); if(tab){ TabPanel.setActiveTab(tabId); } else{ TabPanel.add({ title: tabId, html: 'Tab Body ' + (tabId) + '', closable:true }).show(); TabPanel.doLayout(); } } }); and this is the code for the Tab Panel new Ext.TabPanel({ id:'content-tab-panel', region: 'center', deferredRender: false, enableTabScroll:true, activeTab: 0, items: [{ contentEl: 'about', title: 'About the Billing Ops Application', closable: true, autoScroll: true, margins: '0 0 0 0' },{ contentEl: 'welcomescreen', title: 'PBRT Application Home', closable: false, autoScroll: true, margins: '0 0 0 0' }] }) Can somebody please help?

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• jqgrid setting cutom formatter to dynamic column collection

  - by user312249

  I am using jqgrid. We are building a dashboard functionality with jquery. Different application just have to register respective application page and dashboard will render that page.To achieve this we are using jqgrid as one of the jquery plugin. Following is my codeenter code here var ph = '#' + placeHolder; var _prevSort; $.ajax({ url: dataUrl, dataType: "json", async: true, success: function(json) { pager = $('#' + pager); if (json.showPager === "false") { pager = eval(json.showPager); } dataUrl += "&jqSession=true"; $(ph).jqGrid({ url: dataUrl, datatype: "json", sortclass: "grid_sort", colNames: JSON.parse(json.colNames), colModel: JSON.parse(json.colModel), forceFit: true, rowNum: json.rowNum, rowList: JSON.parse(json.rowList), pager: pager, sortname: json.sortName, caption: json.caption, viewrecords: true, viewsortcols: true, sortorder: json.sortOrder, footerrow: summaryFooter, userDataOnFooter: summaryFooter, jsonReader: { root: "rows", row: "row", repeatitems: false, id: json.sortName }, gridComplete: function() { if (showFooter) { $(ph).append("" + json.footerRow + ""); } if (json.additionalContent != null) { $("#" + xContID).html(json.additionalContent); } $("ui-icon-asc").append("IMG"); var _rows = $(".jqgrow"); if (json.rows.length 0) { for (var i = 1; i < _rows.length; i += 1) { _rows[i].attributes["class"].value = _rows[i].attributes["class"].value.replace(" ui-jqgrid-altrow", ""); if (i % 2 == 1) { _rows[i].attributes["class"].value += " ui-jqgrid-altrow"; } } var gMaxHeight = getGridMaxHeight(); var gHeight = ($(ph + " tr").length + 1) * ($($(".jqgrow") [0]).height()); if (gHeight <= gMaxHeight) { $(ph).parent().height(gHeight); } else { $(ph).parent().height(gMaxHeight); } } else { $(ph).prepend("" + gridNoDataMsg + ""); $(ph).parent().height(60); } }, onSortCol: function(index, iCol, sortorder) { dataUrl = dataUrl.replace("&jqSession=true", ""); $(ph).jqGrid().setGridParam({ url: dataUrl }).trigger("reloadGrid"); var colName = "#jqgh" + index; // $(_prevSort).parent().removeClass("ui-jqgrid-sorted"); // $(_prevSort).parent().addClass("ui-state-default"); // $(_colName).parent().addClass("ui-jqgrid-sorted"); // $(_colName).parent().removeClass("ui-state-default"); _prevSort = _colName; var _rows = $(".jqgrow"); for (var i = 1; i < _rows.length; i += 1) { _rows[i].attributes["class"].value = _rows[i].attributes["class"].value.replace(" ui-jqgrid-altrow", ""); if (i % 2 == 1) { _rows[i].attributes["class"].value += " ui-jqgrid-altrow"; } } } }).navGrid('#' + pager, { search: false, sort: false, edit: false, add: false, del: false, refresh: false }); // end of grid $("#" + loadid).empty(); gGridIds[gGridIds.length] = placeHolder; SetGridSizes(); }, error: function() { $("#" + loadid).html(loadingErr); } }); As you can see from the code i am getting column collection dynamically(Appication page which i am calling will give me JSON in the response and will have colNames collection in it. Evrything is working fine but, only issue is coming when we are trying to apply custom formatter to column. This issue comes only when we are dynamically assign "colModel" to jqgrid. Appreciate help Thanks in advance

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• How to enable gzip HTTP compression on Windows Azure dynamic content

  - by Steven

  Hi all, I've been trying unsuccessfully to enable gzip HTTP compression on my Windows Azure hosted WCF Restful service which returns JSON only from GET and POST requests. I have tried so many things that I would have a hard time listing all of them, and I now realise I have been working with conflicting information (regarding old version of azure etc) so think it best to start with a clean slate! I am working with Visual Studio 2008, using the February 2010 tools for Visual Studio. So, according to the following link, HTTP compression has now been enabled .. http://msdn.microsoft.com/en-us/library/ff436045.aspx ... and I've used the advice at the following page (the URL compression advice only), but I get no compression. http://blog.smarx.com/posts/iis-compression-in-windows-azure <urlCompression doStaticCompression="true" doDynamicCompression="false" dynamicCompressionBeforeCache="true" /> It doesn't help that I don't know what the difference is between urlCompression and httpCompression. I've tried to find out but to no avail! Could the fact that the tools for Visual Studio were released before the version of Azure which supports compression be a problem? I read somewhere that with the latest tools, you can choose which version of Azure OS you want to use when you publish ... but I don't know if that's true, and if it is, I can't find where to choose. Could I be using a pre-http enabled version? I've also tried blowery http compression module, but no results. Does any one have any up-to-date advice on how to achieve this? i.e. advice that relates to the current version of the Azure OS. Cheers! Steven

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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 dynamic select option - beforeEditCell not firing

  - by mango

  I'm creating a jqgrid with one drop down column. I need the options of the drop down columns to change dynamically so I thought I can catch the beforeCellEdit event. however it does not seem to be firing. any idea on what i am doing wrong? there is no error, and i did check that i have included the jqgrid edit js files. var lastsel2; jQuery(document).ready(function(){ jQuery("#projectList").jqGrid({ datatype: 'json', url:'projectDrv.jsp', mtype: 'GET', height: 250, colNames:['Node','Proposal #', 'Status', 'Vendor', 'Actions'], colModel :[ {name:'node', index:'node', width:100, editable:false, sortable:false}, {name:'proposal', index:'proposal', width:100, editable:false, resizable:true }, {name:'status', index:'status', width:100, resizable:true, sortable:false, editable:false }, {name:'vendor', index:'vendor', width:100, resizable:true, editable:false, sortable: false }, {name:'actions', index:'actions', width:100, resizable:true, sortable:false, editable: true, edittype:"select" } ], pager: '#pager', rowNum: 10, sortname: 'proposal', sortorder: 'desc', viewrecords: true, onSelectRow: function(id){ if (id && id!==lastsel2){ jQuery('#projectList').jqGrid('restoreRow',lastsel2); jQuery('#projectList').jqGrid('editRow',id,true); lastsel2 = id; } }, beforeEditCell: function(rowid, cellname, value, irow, icol) { alert("before edit here " + rowid); // set editoptions here } });

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• Dynamic page adding through jsPdf

  - by Vishakh Shetty

  I am trying to convert content from tinymce editor to pdf using Jspdf. But as JSpdf creating single pdf page only initial 30 lines from editors appering in PDF.. So how can I add page dynamically to convert whole content to pdf?? My CODE: function save_to_pdf() { var myIFrame = document.getElementById(text_ifr); var content = myIFrame.contentWindow.document.body.innerHTML; $('#pdf_text').html(content); var pdf = new jsPDF('p', ' in ', 'letter'), source = $('#pdf_text')[0], specialElementHandlers = { '#bypassme': function(element, renderer) { return true; } }; pdf.fromHTML( source, // HTML string or DOM elem ref. 0.5, // x coord 0.5, // y coord { width: 7.5, // max width of content on PDF elementHandlers: specialElementHandlers } ); pdf.addImage(imageData, JPEG, 95, 5, 20, 20); pdf.save(Test.pdf); } Thanks in Advance

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