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  • How do you get Client IP Address in Grails controller?

    - by Andrew
    I had code like this in Ruby @clientipaddress = request.env["HTTP_CLIENT_IP"] if (@clientipaddress == nil) @clientipaddress = request.env["HTTP_X_FORWARDED_FOR"] end if (@clientipaddress == nil) @clientipaddress = request.env["REMOTE_ADDR"] end if (@clientipaddress != nil) comma = @clientipaddress.index(",") if (comma != nil && comma >= 0) @clientipaddress = @clientipaddress[0, comma] end end It took care of all the possible ways that the ip might show up. For instance, on my local development machine there is no proxy. But in QA and Production the proxies are there and sometimes they provide more than one address. I don't need to know the groovy syntax. Just which methods get me the equivalent of the three different ways I ask for the ip above.

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  • How to search an XML when parsing it using SAX in nokogiri

    - by ralph
    I have a simple but huge xml file like below. I want to parse it using SAX and only print out text between the title tag. <root> <site>some site</site> <title>good title</title> </root> I have the following code: require 'rubygems' require 'nokogiri' include Nokogiri class PostCallbacks < XML::SAX::Document def start_element(element, attributes) if element == 'title' puts "found title" end end def characters(text) puts text end end parser = XML::SAX::Parser.new(PostCallbacks.new) parser.parse_file("myfile.xml") problem is that it prints text between all the tags. How can I just print text between the title tag?

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  • Passing to service custom class instance in WCF

    - by hgulyan
    Hi, I have my custom class Customer with its properties. I added DataContract mark above the class and DataMember to properties and it was working fine, but I'm calling a service class's function, passing customer instance as parameter and some of my properties get 0 values. While debugging I can see my properties values and after it gets to the function, some properties' values are 0. Why it can be so? There's no code between this two actions. DataContract mark workes fine, everything's ok. Any suggestions on this issue? I tried to change ByRef to ByVal, but it doesn't change anything. Why it would pass other values right and some of integer types just 0? Maybe the answer is simple, but I can't figure it out. Thank You. _ Public Class Customer Private Type_of_clientField As Integer = -1 _ Public Property type_of_client() As Integer Get Return Type_of_clientField End Get Set(ByVal value As Integer) Type_of_clientField = value End Set End Property End Class _ _

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  • Error handling in Rails Controller for adding embedded Mongoid documents to Model

    - by Dragonfly
    I have a Item model that has embedded documents. Currently, the following comments_controller code will add a comment to the item successfully. However, if pushing the comment document onto the comments array on item fails, I will not know this. #this does work, but i do not know if the push fails def create comment = Comment.new(:text => params[:text]) @item.comments << comment render :text => comment end I would like to have something like this, but @item.comments << comment does not return true or false: #this does not work def create comment = Comment.new(:text => params[:text]) if @item.comments << comment render :text => comment else render :text => 'oh no' end end Nor does it throw an exception when the document push fails: #this does not work def create begin comment = Comment.new(:text => params[:text]) @item.comments << comment render :text => comment rescue Exception => e render :text => 'oh no' end end Thanks!

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  • .NET OwnerDraw ComboBox: Vista/7 themed DropDownList

    - by Stijn
    I'm working on a custom ComboBox for a project, and have the basic painting working. One of the remaining things to do is make it look like the default ComboBox in Vista and 7, when the DropDownStyle is set to DropDownList (looks like a button instead of a regular ComboBox). I read much about VisualStyleRenderer, read ComboBox.cs and ComboBoxRenderer.cs, and tried to get it working. It works in the sense of, it does something. It just doesn't do what it's supposed to do. I also found an article about Vista themed Owner-Drawn Buttons, but it is in C++ (which would be a challenge on its own for me) and it seems like an awful lot of code. If anyone could supply either VB or C# code, that would be great. Below is my current code. Public Sub New() DrawMode = Windows.Forms.DrawMode.OwnerDrawFixed ItemHeight *= 2 DropDownStyle = ComboBoxStyle.DropDownList End Sub Protected Overrides Sub OnDrawItem(ByVal e As System.Windows.Forms.DrawItemEventArgs) If e.Index = -1 Then Return End If If Not (e.State = DrawItemState.Selected) Then e.DrawBackground() End If Dim brsh As Brush If (e.State And DrawItemState.Focus) = DrawItemState.Focus And (e.State And DrawItemState.Selected) = DrawItemState.Selected Then brsh = SystemBrushes.HighlightText Else brsh = SystemBrushes.ControlText End If e.DrawFocusRectangle() e.Graphics.DrawString(Items(e.Index), e.Font, brsh, e.Bounds) End Sub

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  • No long-running conversations - IllegalArgumentException: Stack must not be null

    - by Markos Fragkakis
    Hi all, I have a very simple application with just 2 pages on WebLogic 10.3.2 (11g), Seam 2.2.0.GA. I have a command button in each, which makes a redirect-after-post to the other. This works well, as I see the URL of the current page I am seeing in the address bar. BUT, even though I have no long-running conversations defined, after a random number of clicks, and - I think - after a random number of seconds (~10s - 60s) I get the lovely exception at the end of this post. Now, if I have understood how temporary conversations work when redirecting this happens: When I first see my application, the url is http://localhost:7001/myapp When I click the button in pageA.xhtml, I end up in "pageB.xhtml?cid=26". This is normal because Seam extends the temporary conversation of the first request to last until the renderResponse phase of the redirect. So, it uses the cid (Conversation Id) of the extended temporary conversation to find any propagated parameters. When I click the button in pageB.xhtml, I end up in pageA.xhtml?cid=26 The same cid was given to the new extended temporary conversation. This is normal because the conversation ended at the end of the previous redirect-after-post, and not the number 26 is free to use as a cid. Is this all correct? If yes, why does this happen: If I re-type the applications home address (showing pageA) and re-click, I end up in pageB.xhtml?cid=29, which is a different number than 26. But 26 has ended after the previous RenderResponse phase, befire I re-types the url. Why is it not used instead of 29? So, to sup up, 2 questions: Why do I get the exception, even though I have not started any long-running conversations? What happens exactly with the cid? On what basis does it change? Cheers,

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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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  • Replace empty cells with logical 0's before cell2mat in MATLAB

    - by Doresoom
    I've got a cell array of empty cells and ones that I want to convert to a logical array, where the empty cells are zeros. When I use cell2mat, the empty cells are ignored, and I end up with a matrix of solely 1's, with no reference to the previous index they held. Is there a way to perform this operation without using loops? Example code: for n=1:5 %generate sample cell array mycellarray{n}=1; end mycellarray{2}=[] %remove one value for testing Things I've tried: mylogicalarray=logical(cell2mat(mycellarray)); which results in [1,1,1,1], not [1,0,1,1,1]. for n=1:length(mycellarray) if isempty(mycellarray{n}) mycellarray{n}=0; end end mylogicalarray=logical(cell2mat(mycellarray)); which works, but uses loops.

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  • How do I handle nils in views?

    - by Badweather
    I have the following models set up: class Contact < ActiveRecord::Base belongs_to :band belongs_to :mode validates_presence_of :call, :mode validates_associated :mode, :band validates_presence_of :band, :if => :no_freq? validates_presence_of :freq, :if => :no_band? protected def no_freq? freq.nil? end def no_band? band.nil? end end class Band < ActiveRecord::Base has_many :logs end class Mode < ActiveRecord::Base has_many :logs end When I enter a frequency on my new view it allows for no band to be specified if a freq is entered. This creates a problem in my other views though because band is now nil. How do I allow for band not to be specified and just show up as empty on my index and show views, and then in the edit view allow one to be specified at a later point in time. I have been able to get my index to display a blank by doing: contact.band && contact.band.name But I'm not sure if this is a best approach, and I'm unsure of how to apply a similar solution to my other views. Many thanks from a rails newb!

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  • Please Explain Drupal schema and drupal_write_record

    - by Aaron
    Hi. A few questions. 1) Where is the best place to populate a new database table when a module is first installed, enabled? I need to go and get some data from an external source and want to do it transparently when the user installs/enables my custom module. I create the schema in {mymodule}_schema(), do drupal_install_schema({tablename}); in hook_install. Then I try to populate the table in hook_enable using drupal_write_record. I confirmed the table was created, I get no errors when hook_enable executes, but when I query the new table, I get no rows back--it's empty. Here's one variation of the code I've tried: /** * Implementation of hook_schema() */ function ncbi_subsites_schema() { // we know it's MYSQL, so no need to check $schema['ncbi_subsites_sites'] = array( 'description' => 'The base table for subsites', 'fields' => array( 'site_id' => array( 'description' => 'Primary id for site', 'type' => 'serial', 'unsigned' => TRUE, 'not null' => TRUE, ), // end site_id 'title' => array( 'description' => 'The title of the subsite', 'type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => '', ), //end title field 'url' => array( 'description' => 'The URL of the subsite in Production', 'type' => 'varchar', 'length' => 255, 'default' => '', ), //end url field ), //end fields 'unique keys' => array( 'site_id'=> array('site_id'), 'title' => array('title'), ), //end unique keys 'primary_key' => array('site_id'), ); // end schema return $schema; } Here's hook_install: function ncbi_subsites_install() { drupal_install_schema('ncbi_subsites'); } Here's hook_enable: function ncbi_subsites_enable() { drupal_get_schema('ncbi_subsites_site'); // my helper function to get data for table (not shown) $subsites = ncbi_subsites_get_subsites(); foreach( $subsites as $name=>$attrs ) { $record = new stdClass(); $record->title = $name; $record->url = $attrs['homepage']; drupal_write_record( 'ncbi_subsites_sites', $record ); } } Can someone tell me what I'm missing?

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  • Authlogic and password and password confirmation attributes - inaccessible?

    - by adam
    Im trying to test my successfully creates a new user after login (using authlogic). Ive added a couple of new fields to the user so just want to make sure that the user is saved properly. The problem is despite creating a valid user factory, whenever i try to grab its attributes to post to the create method, password and password confirmation are being ommitted. I presuem this is a security method that authlogic performs in the background. This results in validations failing and the test failing. Im wondering how do i get round this problem? I could just type the attributes out by hand but that doesnt seem very dry. context "on POST to :create" do context "on posting a valid user" do setup do @user = Factory.build(:user) post :create, :user => @user.attributes end should "be valid" do assert @user.valid? end should_redirect_to("users sentences index page") { sentences_path() } should "add user to the db" do assert User.find_by_username(@user.username) end end ##User factory Factory.define :user do |f| f.username {Factory.next(:username) } f.email { Factory.next(:email)} f.password_confirmation "password" f.password "password" f.native_language {|nl| nl.association(:language)} f.second_language {|nl| nl.association(:language)} end

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  • Establishing Upper / Lower Bound in T-SQL Procedure

    - by Code Sherpa
    Hi. I am trying to establish upper / lower bound in my stored procedure below and am having some problems at the end (I am getting no results where, without the temp table inner join i get the expected results). I need some help where I am trying to join the columns in my temp table #PageIndexForUsers to the rest of my join statement and I am mucking something up with this statement: INNER JOIN #PageIndexForUsers ON ( dbo.aspnet_Users.UserId = #PageIndexForUsers.UserId AND #PageIndexForUsers.IndexId >= @PageLowerBound AND #PageIndexForUsers.IndexId <= @PageUpperBound ) I could use feedback at this point - and, any advice on how to improve my procedure's logic (if you see anything else that needs improvement) is also appreciated. Thanks in advance... ALTER PROCEDURE dbo.wb_Membership_GetAllUsers @ApplicationName nvarchar(256), @sortOrderId smallint = 0, @PageIndex int, @PageSize int AS BEGIN DECLARE @ApplicationId uniqueidentifier SELECT @ApplicationId = NULL SELECT @ApplicationId = ApplicationId FROM dbo.aspnet_Applications WHERE LOWER(@ApplicationName) = LoweredApplicationName IF (@ApplicationId IS NULL) RETURN 0 -- Set the page bounds DECLARE @PageLowerBound int DECLARE @PageUpperBound int DECLARE @TotalRecords int SET @PageLowerBound = @PageSize * @PageIndex SET @PageUpperBound = @PageSize - 1 + @PageLowerBound BEGIN TRY -- Create a temp table TO store the select results CREATE TABLE #PageIndexForUsers ( IndexId int IDENTITY (0, 1) NOT NULL, UserId uniqueidentifier ) -- Insert into our temp table INSERT INTO #PageIndexForUsers (UserId) SELECT u.UserId FROM dbo.aspnet_Membership m, dbo.aspnet_Users u WHERE u.ApplicationId = @ApplicationId AND u.UserId = m.UserId ORDER BY u.UserName SELECT @TotalRecords = @@ROWCOUNT SELECT dbo.wb_Profiles.profileid, dbo.wb_ProfileData.firstname, dbo.wb_ProfileData.lastname, dbo.wb_Email.emailaddress, dbo.wb_Email.isconfirmed, dbo.wb_Email.emaildomain, dbo.wb_Address.streetname, dbo.wb_Address.cityorprovince, dbo.wb_Address.state, dbo.wb_Address.postalorzip, dbo.wb_Address.country, dbo.wb_ProfileAddress.addresstype,dbo.wb_ProfileData.birthday, dbo.wb_ProfileData.gender, dbo.wb_Session.sessionid, dbo.wb_Session.lastactivitydate, dbo.aspnet_Membership.userid, dbo.aspnet_Membership.password, dbo.aspnet_Membership.passwordquestion, dbo.aspnet_Membership.passwordanswer, dbo.aspnet_Membership.createdate FROM dbo.wb_Profiles INNER JOIN dbo.wb_ProfileAddress ON ( dbo.wb_Profiles.profileid = dbo.wb_ProfileAddress.profileid AND dbo.wb_ProfileAddress.addresstype = 'home' ) INNER JOIN dbo.wb_Address ON dbo.wb_ProfileAddress.addressid = dbo.wb_Address.addressid INNER JOIN dbo.wb_ProfileData ON dbo.wb_Profiles.profileid = dbo.wb_ProfileData.profileid INNER JOIN dbo.wb_Email ON ( dbo.wb_Profiles.profileid = dbo.wb_Email.profileid AND dbo.wb_Email.isprimary = 1 ) INNER JOIN dbo.wb_Session ON dbo.wb_Profiles.profileid = dbo.wb_Session.profileid INNER JOIN dbo.aspnet_Membership ON dbo.wb_Profiles.userid = dbo.aspnet_Membership.userid INNER JOIN dbo.aspnet_Users ON dbo.aspnet_Membership.UserId = dbo.aspnet_Users.UserId INNER JOIN dbo.aspnet_Applications ON dbo.aspnet_Users.ApplicationId = dbo.aspnet_Applications.ApplicationId INNER JOIN #PageIndexForUsers ON ( dbo.aspnet_Users.UserId = #PageIndexForUsers.UserId AND #PageIndexForUsers.IndexId >= @PageLowerBound AND #PageIndexForUsers.IndexId <= @PageUpperBound ) ORDER BY CASE @sortOrderId WHEN 1 THEN dbo.wb_ProfileData.lastname WHEN 2 THEN dbo.wb_Profiles.username WHEN 3 THEN dbo.wb_Address.postalorzip WHEN 4 THEN dbo.wb_Address.state END END TRY BEGIN CATCH IF @@TRANCOUNT > 0 ROLLBACK TRAN EXEC wb_ErrorHandler RETURN 55555 END CATCH RETURN @TotalRecords END GO

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  • in ruby on rails, how to call a action in ApplicationController?

    - by siulamvictor
    I am new to Ruby and RoR. I am not really understand how's the controller work I have an action in ApplicationController def some_checking ... end And I would like to call the action some_checking in another controller class OtherController < ApplicationController some_checking def xxx end end Is there anything wrong? How can I call an action in ApplicationController? I just can't get into some_checking.

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  • Ruby Programming Techniques: simple yet not so simple object manipulation

    - by Shyam
    Hi, I want to create an object, let's say a Pie. class Pie def initialize(name, flavor) @name = name @flavor = flavor end end But a Pie can be divided in 8 pieces, a half or just a whole Pie. For the sake of argument, I would like to know how I could give each Pie object a price per 1/8, 1/4 or per whole. I could do this by doing: class Pie def initialize(name, flavor, price_all, price_half, price_piece) @name = name @flavor = flavor @price_all = price_all @price_half = price_half @price_piece = price_piece end end But now, if I would create fifteen Pie objects, and I would take out randomly some pieces somewhere by using a method such as getPieceOfPie(pie_name) How would I be able to generate the value of all the available pies that are whole and the remaining pieces? Eventually using a method such as: myCurrentInventoryHas(pie_name) # output: 2 whole strawberry pies and 7 pieces. I know, I am a Ruby nuby. Thank you for your answers, comments and help!

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  • Creating instance of a service-side DataContract class on client-side in WCF

    - by hgulyan
    Hi, I have my custom class Customer with its properties. I added DataContract mark above the class and DataMember to properties and it was working fine, but I'm calling a service class's function, passing customer instance as parameter and some of my properties get 0 values. While debugging I can see my properties values and after it gets to the function, some properties' values are 0. Why it can be so? There's no code between this two actions. DataContract mark workes fine, everything's ok. Any suggestions on this issue? I tried to change ByRef to ByVal, but it doesn't change anything. Why it would pass other values right and some of integer types just 0? Maybe the answer is simple, but I can't figure it out. Thank You. <DataContract()> Public Class Customer Private Type_of_clientField As Integer = -1 <DataMember(Order:=1)> Public Property type_of_client() As Integer Get Return Type_of_clientField End Get Set(ByVal value As Integer) Type_of_clientField = value End Set End Property End Class <ServiceContract(SessionMode:=SessionMode.Allowed)> <DataContractFormat()> Public Interface CustomerService <OperationContract()> Function addCustomer(ByRef customer As Customer) As Long End Interface type_of_client properties value is 6 before I call addCustomer function. After it enters that function the value is 0. UPDATE: The issue is in instance creating. When I create an instance of a class on client side, that is stored on service side, some of my properties pass 0 or nothing, but when I call a function of a service class, that returns a new instance of that class, it works fine. What's is the difference? Could that be serialization issue?

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  • Django: Overriding the clean() method in forms - question about raising errors

    - by Monika Sulik
    I've been doing things like this in the clean method: if self.cleaned_data['type'].organized_by != self.cleaned_data['organized_by']: raise forms.ValidationError('The type and organization do not match.') if self.cleaned_data['start'] > self.cleaned_data['end']: raise forms.ValidationError('The start date cannot be later than the end date.') But then that means that the form can only raise one of these errors at a time. Is there a way for the form to raise both of these errors? EDIT #1: Any solutions for the above are great, but would love something that would also work in a scenario like: if self.cleaned_data['type'].organized_by != self.cleaned_data['organized_by']: raise forms.ValidationError('The type and organization do not match.') if self.cleaned_data['start'] > self.cleaned_data['end']: raise forms.ValidationError('The start date cannot be later than the end date.') super(FooAddForm, self).clean() Where FooAddForm is a ModelForm and has unique constraints that might also cause errors. If anyone knows of something like that, that would be great...

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  • Detect click on URL in RichEdit

    - by Tofig Hasanov
    I am trying to update RichEdit so that it detects URL and enables clicking on it to open in the browser. Detecting URL is easy, I just use the following code from http://www.scalabium.com/faq/dct0146.htm mask := SendMessage(MNote.Handle, EM_GETEVENTMASK, 0, 0); SendMessage(MNote.Handle, EM_SETEVENTMASK, 0, mask or ENM_LINK); SendMessage(MNote.Handle, EM_AUTOURLDETECT, Integer(True), 0); but the second part doesn't work for me. They give the following code to capture EN_LINK message and processing it: type TForm1 = class(TForm) protected procedure WndProc(var Message: TMessage); override; end; ... procedure TForm1.WndProc(var Message: TMessage); var p: TENLink; strURL: string; begin if (Message.Msg = WM_NOTIFY) then begin if (PNMHDR(Message.LParam).code = EN_LINK) then begin p := TENLink(Pointer(TWMNotify(Message).NMHdr)^); if (p.msg = WM_LBUTTONDOWN) then begin SendMessage(RichEdit1.Handle, EM_EXSETSEL, 0, LongInt(@(p.chrg))); strURL := RichEdit1.SelText; ShellExecute(Handle, 'open', PChar(strURL), 0, 0, SW_SHOWNORMAL); end end end; inherited; end; When I run the program, URL is detected, but clicking on it doesn't do anything. Using debug I found out that Message.Msg = WM_NOTIFY is not true when I click on URL. I then tried to override TRichEdit's WndProc, but result is the same. Any suggestions?

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  • How to avoid saving a blank model which attributes can be blank

    - by auralbee
    Hello people, I have two models with a HABTM association, let´s say book and author. class Book has_and_belongs_to_many :authors end class Author has_and_belongs_to_many :books end The author has a set of attributes (e.g. first-name,last-name,age) that can all be blank (see validation). validates_length_of :first_name, :maximum => 255, :allow_blank => true, :allow_nil => false In the books_controller, I do the following to append all authors to a book in one step: @book = Book.new(params[:book]) @book.authors.build(params[:book][:authors].values) My question: What would be the easiest way to avoid the saving of authors which fields are all blank to prevent too much "noise" in the database? At the moment, I do the following: validate :must_have_some_data def must_have_some_data empty = true hash = self.attributes hash.delete("created_at") hash.delete("updated_at") hash.each_value do |value| empty = false if value.present? end if (empty) errors.add_to_base("Fields do not contain any data.") end end Maybe there is an more elegant, Rails-like way to do that. Thanks.

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  • Including two signatures, both with a 'type t' [Standard ML]

    - by Andy Morris
    A contrived example: signature A = sig type t val x: t end signature B = sig type t val y: t end signature C = sig include A B end Obviously, this will cause complaints that type t occurs twice in C. But is there any way to express that I want the two ts to be equated, ending up with: signature C = sig type t val x: t val y: t end I tried all sorts of silly syntax like include B where type t = A.t, which unsurprisingly didn't work. Is there something I've forgotten to try? Also, I know that this would be simply answered by checking the language's syntax for anything obvious (or a lack of), but I couldn't find a complete grammar anywhere on the internet. (FWIW, the actual reason I'm trying to do this is Haskell-style monads and such, where a MonadPlus is just a mix of a Monad and an Alternative; at the moment I'm just repeating the contents of ALTERNATIVE in MONAD_PLUS, which strikes me as less than ideal.)

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  • FileSystem.GetFiles() + UnauthorizedAccessException error?

    - by OverTheRainbow
    Hello, It seems like FileSystem.GetFiles() is unable to recover from the UnauthorizedAccessException exception that .Net triggers when trying to access an off-limit directory. In this case, does it mean this class/method isn't useful when scanning a whole drive and I should use some other solution (in which case: Which one?)? Here's some code to show the issue: Private Sub bgrLongProcess_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles bgrLongProcess.DoWork Dim drive As DriveInfo Dim filelist As Collections.ObjectModel.ReadOnlyCollection(Of String) Dim filepath As String 'Scan all fixed-drives for MyFiles.* For Each drive In DriveInfo.GetDrives() If drive.DriveType = DriveType.Fixed Then Try 'How to handle "Access to the path 'C:\System Volume Information' is denied." error? filelist = My.Computer.FileSystem.GetFiles(drive.ToString, FileIO.SearchOption.SearchAllSubDirectories, "MyFiles.*") For Each filepath In filelist DataGridView1.Rows.Add(filepath.ToString, "temp") 'Trigger ProgressChanged() event bgrLongProcess.ReportProgress(0, filepath) Next filepath Catch Ex As UnauthorizedAccessException 'How to ignore this directory and move on? End Try End If Next drive End Sub Thank you. Edit: What about using a Try/Catch just to have GetFiles() fill the array, ignore the exception and just resume? Private Sub bgrLongProcess_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles bgrLongProcess.DoWork 'Do lengthy stuff here Dim filelist As Collections.ObjectModel.ReadOnlyCollection(Of String) Dim filepath As String filelist = Nothing Try filelist = My.Computer.FileSystem.GetFiles("C:\", FileIO.SearchOption.SearchAllSubDirectories, "MyFiles.*") Catch ex As UnauthorizedAccessException 'How to just ignore this off-limit directory and resume searching? End Try 'Object reference not set to an instance of an object For Each filepath In filelist bgrLongProcess.ReportProgress(0, filepath) Next filepath End Sub

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  • How do I know if I have an unmanaged resource?

    - by Shiftbit
    I've read that unmanaged resource are considered file handles, streams, anything low level. Does MSDN or any other source explain how to recognize an unmanaged resource? I can't seem to find any examples on the net that show unmanaged code, all the examples just have comments that say unmanaged code here. Can someone perhaps provide a realworld example where I would handle an unmanaged resources in an IDispose interface? I provided the IDisposable interface for your convience. How do I identify an unmanaged resource? Thanks in advance! IDisposable Reference Public Class Sample : Implements IDisposable Private disposedValue As Boolean = False 'To detect redundant calls ' IDisposable Protected Overridable Sub Dispose(ByVal disposing As Boolean) If Not Me.disposedValue Then If disposing Then ' TODO: free other state (managed objects). End If ' TODO: free your own state (unmanaged objects). ' TODO: set large fields to null. End If Me.disposedValue = True End Sub ' This code added by Visual Basic to correctly implement the disposable pattern. Public Sub Dispose() Implements IDisposable.Dispose ' Do not change this code. Put cleanup code in Dispose(ByVal disposing As Boolean) above. Dispose(True) GC.SuppressFinalize(Me) End Sub End Class

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  • Trying to extend ActionView::Helpers::FormBuilder

    - by nibbo
    Hello I am trying to DRY up some code by moving some logic into the FormBuilder. After reading the documentation about how to select and alternative form builder the logical solution for me seemed to be something like this. In the view <% form_for @event, :builder => TestFormBuilder do |f| %> <%= f.test %> <%= f.submit 'Update' %> <% end %> and then in app/helpers/application_helper.rb module ApplicationHelper class TestFormBuilder < ActionView::Helpers::FormBuilder def test puts 'apa' end end end This, however, gives me an error at the "form_for" uninitialized constant ActionView::Base::CompiledTemplates::TestFormBuilder Where am I doing it wrong?

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  • error in GP installation

    - by Rahul khanna
    Hi all, I know this is not the forum to post installation problem, though i am posting this type problem because i am helpless. Pls someobody give me some idea. After installing the GP10.0 while i run the GP Utility for server installation. In between installation i got the following error. I have SQL2000 data base and created the System DSN for and tested successfully. Pls somebody help me what is this error about. The following SQL statement produced an error: create procedure smRuleTestSendMail @emailid varchar(255), @ccids varchar(255), @bccids varchar(255), @emailmsg varchar(255) as if substring(CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')),1,PATINDEX('%.%', CONVERT(varchar(128), SERVERPROPERTY('ProductVersion'))) - 1) < 9 begin exec master.dbo.xp_sendmail @recipients=@emailid, @copy_recipients=@ccids, @blind_copy_recipients=@bccids, @message=@emailmsg, @Subject='TEST message from SQL Server' end else begin if PATINDEX ('%64-bit%',@@version) 0 begin exec msdb.dbo.sp_send_dbmail @recipients=@emailid, @copy_recipients=@ccids, @blind_copy_recipients=@bccids, @body=@emailmsg, @subject='TEST message from SQL Server' end else begin exec master.dbo.xp_sendmail @recipients=@emailid, @copy_recipients=@ccids, @blind_copy_recipients=@bccids, @message=@emailmsg, @Subject='TEST message from SQL Server' end end

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  • How do i create a table dynamically with dynamic datatype from a PL/SQL procedure

    - by Swapna
    CREATE OR REPLACE PROCEDURE p_create_dynamic_table IS v_qry_str VARCHAR2 (100); v_data_type VARCHAR2 (30); BEGIN SELECT data_type || '(' || data_length || ')' INTO v_data_type FROM all_tab_columns WHERE table_name = 'TEST1' AND column_name = 'ZIP'; FOR sql_stmt IN (SELECT * FROM test1 WHERE zip IS NOT NULL) LOOP IF v_qry_str IS NOT NULL THEN v_qry_str := v_qry_str || ',' || 'zip_' || sql_stmt.zip || ' ' || v_data_type; ELSE v_qry_str := 'zip_' || sql_stmt.zip || ' ' || v_data_type; END IF; END LOOP; IF v_qry_str IS NOT NULL THEN v_qry_str := 'create table test2 ( ' || v_qry_str || ' )'; END IF; EXECUTE IMMEDIATE v_qry_str; COMMIT; END p_create_dynamic_table; Is there any better way of doing this ?

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