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  • Transparent Background with a Modal UIViewController

    - by Mick Walker
    I have a dilema, I want to present to the user a semi-transparent view. I found out by experimenting that if I simply pushed the transparent view to the top of my NavigationController's stack, that it would not render the transparency level I wanted. So I decided to simply add the view as a subview of the current view at the top of the stack. This solution works, the view below is still visible, and the View is 'semi-modal'. The problem is, if the parent view inherits from UITableViewController (as mine does), then the view I 'push' onto it, does not cover the navigation bar at the top. I really don't want to get into a situation where I am forced to enable / disable controls on the navigation bar every time I push this view, so I was wondering, if anyone knew of any solutions that I could use so that the view I push onto the UITableViewController will actually 'push over' the navigation bar?

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  • RESTfully Nesting Resource Routes with Single Identifiers

    - by Craig Walker
    In my Rails app I have a fairly standard has_many relationship between two entities. A Foo has zero or more Bars; a Bar belongs to exactly one Foo. Both Foo and Bar are identified by a single integer ID value. These values are unique across all of their respective instances. Bar is existence dependent on Foo: it makes no sense to have a Bar without a Foo. There's two ways to RESTfully references instances of these classes. Given a Foo.id of "100" and a Bar.id of "200": Reference each Foo and Bar through their own "top-level" URL routes, like so: /foo/100 /bar/200 Reference Bar as a nested resource through its instance of Foo: /foo/100 /foo/100/bar/200 I like the nested routes in #2 as it more closely represents the actual dependency relationship between the entities. However, it does seem to involve a lot of extra work for very little gain. Assuming that I know about a particular Bar, I don't need to be told about a particular Foo; I can derive that from the Bar itself. In fact, I probably should be validating the routed Foo everywhere I go (so that you couldn't do /foo/150/bar/200, assuming Bar 200 is not assigned to Foo 150). Ultimately, I don't see what this brings me. So, are there any other arguments for or against these two routing schemes?

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  • Fortran intent(inout) v's no intent

    - by Andrew Walker
    Good practice dictates that subroutine arguments in Fortran should each have a specified intent (i.e. intent(in), intent(out) or intent(inout) as described this question): subroutine bar (a, b) real, intent(in) :: a real, intent(inout) :: b b = b + a ... However, not specifying an intent is valid Fortran: subroutine bar (a, b) real, intent(in) :: a real :: b b = b + a ... Are there any real differences beyond compile time checking for an argument specified as intent(inout) and an argument without a specified intent? Is there anything I should worry about if I'm retrofitting intents to older, intent free, code?

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  • AjaxStart issue

    - by Jerry
    Hi All I am trying to build a shopping website with ajax. When a user clicks the "add to cart" image. The little loading image will show next to the Add To Cart Image. The first click works fine and the image showed as I expected. However, the second and the following clicks appends more images on the first loading image(2nd:add two loading images, 3rd: add three images..6 total images after 3 clicks). I did use ajaxStop and remove the first image...Not sure what's going on...Could use a help. Thanks a lot. My javascript code // add to cart $(".addToCart").click(function(e){ $this=$(this); $tableId=$this.closest('table').attr('id'); $($this).prev().ajaxStart(function(){ $("<img class='loader' src='images/loader.gif'>").insertBefore($this); }); $($this).prev().ajaxStop(function(){ $($this).prev().remove(); }); HTML <table> <tr> <td width="146" align="right" valign="middle"> <br> <span id="wasPrice"><?php echo $productPriceWas; ?></span> <br> <?php echo "$".$productPrice;?><br>**//I want my image here**<a class="addToCart" href="javascript:void(0);"><img src="images/addToCart.gif" alt="add To Cart"/><a/> </td> </tr> </table>

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  • why to use code generators

    - by Night Walker
    Hi all I have encountered this topic lately and couldn't understand why they are needed ... Can you explain me why i should use them in my projects and how they can ease my life . Examples will be great, and where from i can learn this topic little more . Thanks.

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  • Flex datagrid headerColor style not working....

    - by Jerry
    Hello guys. I am trying to change the datagrid header color by editing headerColor style. I could change the font size, font family...etc except the headerColor. Would someone help me about it? Thanks a lot. My code Mxml <mx:DataGrid id="dataGrid" creationComplete="dataGrid_creationCompleteHandler(event)" dataProvider="{cityinfoResult3.lastResult}"> <mx:columns> <mx:DataGridColumn headerText="Detail" dataField="detail"/> <mx:DataGridColumn headerText="Name" dataField="name"/> </mx:columns> </mx:DataGrid> Style #dataGrid{ headerColors: #ff6600; //everything works except this one. The color can't be //changed? rollOverColor: #33ccff; textRollOverColor: #ffffff; iconColor: #ff0000; fontFamily: Arial; fontSize:12; dropShadowEnabled: true; alternatingItemColors: #330099, #0000cc; color: #ffffff; borderColor: #ffffff; }

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  • Populating an association with children in factory_girl

    - by Craig Walker
    I have a model Foo that has_many 'Bar'. I have a factory_girl factory for each of these objects. The factory for Bar has an association to Foo; it will instantiate a Foo when it creates the Bar. I'd like a Factory that creates a Foo that contains a Bar. Ideally this Bar would be created through the :bar factory, and respect the build strategy (create/build) used to create the Foo. I know I could just call the :bar factory and then grab the Foo reference from the new Bar. I'd like to avoid this; in my test case, the important object is Foo; calling the Bar factory seems a bit circuitous. Also, I can see the need for a Foo with multiple Bars. Is this possible in factory_girl? How do you define this relationship in the parent?

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  • Is there a way to undo Mocha stubbing of any_instance in Test::Unit

    - by Craig Walker
    Much like this question, I too am using Ryan Bates's nifty_scaffold. It has the desirable aspect of using Mocha's any_instance method to force an "invalid" state in model objects buried behind the controller. Unlike the question I linked to, I'm not using RSpec, but Test::Unit. That means that the two RSpec-centric solutions there won't work for me. Is there a general (ie: works with Test::Unit) way to remove the any_instance stubbing? I believe that it's causing a bug in my tests, and I'd like to verify that.

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  • Nested Object Forms not working as expected

    - by Craig Walker
    I'm trying to get a nested model forms view working. As far as I can tell I'm doing everything right, but it still does not work. I'm on Rails 3 beta 3. My models are as expected: class Recipe < ActiveRecord::Base has_many :ingredients, :dependent => :destroy accepts_nested_attributes_for :ingredients attr_accessible :name end class Ingredient < ActiveRecord::Base attr_accessible :name, :sort_order, :amount belongs_to :recipe end I can use Recipe.ingredients_attributes= as expected: recipe = Recipe.new recipe.ingredients_attributes = [ {:name=>"flour", :amount=>"1 cup"}, {:name=>"sugar", :amount=>"2 cups"}] recipe.ingredients.size # -> 2; ingredients contains expected instances However, I cannot create new object graphs using a hash of parameters as shown in the documentation: params = { :name => "test", :ingredients_attributes => [ {:name=>"flour", :amount=>"1 cup"}, {:name=>"sugar", :amount=>"2 cups"}] } recipe = Recipe.new(params) recipe.name # -> "test" recipe.ingredients # -> []; no ingredient instances in the collection Is there something I'm doing wrong here? Or is there a problem in the Rails 3 beta?

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  • iPhone App Minus App Store?

    - by Dan Walker
    I've been looking into iPhone development, but I've been having problems coming up with the answer to a certain question. If I create an application on my Mac, is there any way I can get it to run on an iPhone without going through the app store? It doesn't matter if the iPhone has to be jailbroken, as long as I can still run an application created using the official SDK. For reasons I won't get into, I can't have this program going through the app store. Thanks for any help you can give!

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  • Profiling statements inside a User-Defined Function

    - by Craig Walker
    I'm trying to use SQL Server Profiler (2005) to track down some application performance problems. One of the calls being made is to a table-valued user-defined function. This function wraps a select that joins several tables together. In SQL Server Profiler, the call to the UDF is logged. However, the select that underlies the UDF isn't being logged at all. Because of this, I'm not getting useful data on which tables & indexes are being hit. I'd like to feed this info into the Database Tuning Advisor for some indexing advice. Is there any way (short of unwrapping the queries themselves) to log the tables called by UDFs in Profiler?

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  • Function lfit in numerical recipes, providing a test function

    - by Simon Walker
    Hi I am trying to fit collected data to a polynomial equation and I found the lfit function from Numerical Recipes. I only have access to the second edition, so am using that. I have read about the lfit function and its parameters, one of which is a function pointer, given in the documentation as void (*funcs)(float, float [], int)) with the help The user supplies a routine funcs(x,afunc,ma) that returns the ma basis functions evaluated at x = x in the array afunc[1..ma]. I am struggling to understand how this lfit function works. An example function I found is given below: void fpoly(float x, float p[], int np) /*Fitting routine for a polynomial of degree np-1, with coe?cients in the array p[1..np].*/ { int j; p[1]=1.0; for (j=2;j<=np;j++) p[j]=p[j-1]*x; } When I run through the source code for the lfit function in gdb I can see no reference to the funcs pointer. When I try and fit a simple data set with the function, I get the following error message. Numerical Recipes run-time error... gaussj: Singular Matrix ...now exiting to system... Clearly somehow a matrix is getting defined with all zeroes. I am going to involve this function fitting in a large loop so using another language is not really an option. Hence why I am planning on using C/C++. For reference, the test program is given here: int main() { float x[5] = {0., 0., 1., 2., 3.}; float y[5] = {0., 0., 1.2, 3.9, 7.5}; float sig[5] = {1., 1., 1., 1., 1.}; int ndat = 4; int ma = 4; /* parameters in equation */ float a[5] = {1, 1, 1, 0.1, 1.5}; int ia[5] = {1, 1, 1, 1, 1}; float **covar = matrix(1, ma, 1, ma); float chisq = 0; lfit(x,y,sig,ndat,a,ia,ma,covar,&chisq,fpoly); printf("%f\n", chisq); free_matrix(covar, 1, ma, 1, ma); return 0; } Also confusing the issue, all the Numerical Recipes functions are 1 array-indexed so if anyone has corrections to my array declarations let me know also! Cheers

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  • Why would a WebService return nulls when the actual service returns data?

    - by Jerry
    I have a webservice (out of my control) that I have to talk to. I also have a packet-sniffer on the line, and (SURPRISE!!!) the developers of the webservice aren't lying. They are actually sending back all of the data that I requested. But the web-service code that is auto-generated from the WSDL file is giving me "null" as a value. I used their WSDL file to generate my Web Reference. I checked my data types with the datatypes that the WSDL file has declared. And I used the code as listed below to perform the calls: DT_MaterialMaster_LookupRequest req = new DT_MaterialMaster_LookupRequest(); req.MaterialNumber = "101*"; req.DocumentNo = ""; req.Description = "Pipe*"; req.Plant = "0000"; MI_MaterialMaster_Lookup_OBService srv = new MI_MaterialMaster_Lookup_OBService(); DT_MaterialMaster_Response resp = srv.MI_MaterialMaster_Lookup_OB(new DT_MaterialMaster_LookupRequest[] { req }); // Note that the response here is ALWAYS null!! Console.WriteLine(resp.Status); The resp object is an actual object. It was generated properly. However, the Status and MaterialData fields are always null. When I call the web service, I've placed a packet-sniffer on the line, and I can see that I've sent the following (linebreaks and indentions for my own sanity): <?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:Body> <MT_MaterialMaster_Lookup xmlns="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch"> <Request xmlns=""> <MaterialNumber>101*</MaterialNumber> <Description>Pipe*</Description> <DocumentNo /> <Plant>0000</Plant> </Request> </MT_MaterialMaster_Lookup> </soap:Body> </soap:Envelope> The response that they send back SEEMS to be a valid response (linebreaks and indentions for my own sanity): <SOAP:Envelope xmlns:SOAP='http://schemas.xmlsoap.org/soap/envelope/'> <SOAP:Header /> <SOAP:Body> <n0:MT_MaterialMaster_Response xmlns:n0='http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch' xmlns:prx='urn:SomeCompany.com:proxy:BRD:/1SAI/TAS4FE14A2DE960D61219AE:701:2009/02/10'> <Response> <Status>No Rows Found</Status> <MaterialData /> </Response> </n0:MT_MaterialMaster_Response> </SOAP:Body> </SOAP:Envelope> The status shows that it actually received data... but the resp.Status and resp.MaterialData fields are always null. What have I done wrong? UPDATE: The WSDL file is defined as: <?xml version="1.0" encoding="utf-8"?> <wsdl:definitions xmlns:p1="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch" name="MI_MaterialMaster_Lookup_AutoCAD_OB" targetNamespace="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"> <wsdl:types> <xsd:schema xmlns="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch" targetNamespace="http://MyCompany.com/SomeCompany/mm/MaterialMasterSearch" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <xsd:element name="MT_MaterialMaster_Response" type="p1:DT_MaterialMaster_Response" /> <xsd:element name="MT_MaterialMaster_Lookup" type="p1:DT_MaterialMaster_Lookup" /> <xsd:complexType name="DT_MaterialMaster_Response"> <xsd:sequence> <xsd:element name="Status" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">d48d03b040af11df99e300145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element maxOccurs="unbounded" name="MaterialData"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa040a511df843700145eccb24e</xsd:appinfo> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:element name="MaterialNumber" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa140a511df848500145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Description" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa240a511df95bf00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="DocumentNo" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa340a511dfb23700145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="UOM" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">3b5f14c040a611df9fbe00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Hierarchy" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa440a511dfc65b00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Plant" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">d48d03b140af11dfb78e00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Procurement" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">d48d03b240af11dfb87b00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:sequence> </xsd:complexType> <xsd:complexType name="DT_MaterialMaster_Lookup"> <xsd:sequence> <xsd:element maxOccurs="unbounded" name="Request"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa040a511df843700145eccb24e</xsd:appinfo> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:element minOccurs="0" name="MaterialNumber" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa140a511df848500145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Description" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa240a511df95bf00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="DocumentNo" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa340a511dfb23700145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> <xsd:element minOccurs="0" name="Plant" type="xsd:string"> <xsd:annotation> <xsd:appinfo source="http://SomeCompany.com/xi/TextID">64908aa440a511dfc65b00145eccb24e</xsd:appinfo> </xsd:annotation> </xsd:element> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:sequence> </xsd:complexType> </xsd:schema> </wsdl:types> <wsdl:message name="MT_MaterialMaster_Lookup"> <wsdl:part name="MT_MaterialMaster_Lookup" element="p1:MT_MaterialMaster_Lookup" /> </wsdl:message> <wsdl:message name="MT_MaterialMaster_Response"> <wsdl:part name="MT_MaterialMaster_Response" element="p1:MT_MaterialMaster_Response" /> </wsdl:message> <wsdl:portType name="MI_MaterialMaster_Lookup_AutoCAD_OB"> <wsdl:operation name="MI_MaterialMaster_Lookup_AutoCAD_OB"> <wsdl:input message="p1:MT_MaterialMaster_Lookup" /> <wsdl:output message="p1:MT_MaterialMaster_Response" /> </wsdl:operation> </wsdl:portType> <wsdl:binding name="MI_MaterialMaster_Lookup_AutoCAD_OBBinding" type="p1:MI_MaterialMaster_Lookup_AutoCAD_OB"> <binding transport="http://schemas.xmlsoap.org/soap/http" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> <wsdl:operation name="MI_MaterialMaster_Lookup_AutoCAD_OB"> <operation soapAction="http://SomeCompany.com/xi/WebService/soap1.1" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> <wsdl:input> <body use="literal" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> </wsdl:input> <wsdl:output> <body use="literal" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> </wsdl:output> </wsdl:operation> </wsdl:binding> <wsdl:service name="MI_MaterialMaster_Lookup_AutoCAD_OBService"> <wsdl:port name="MI_MaterialMaster_Lookup_AutoCAD_OBPort" binding="p1:MI_MaterialMaster_Lookup_AutoCAD_OBBinding"> <address location="http://bxdwas.MyCompany.com/XISOAPAdapter/MessageServlet?channel=:AutoCAD:SOAP_SND_Material_Lookup" xmlns="http://schemas.xmlsoap.org/wsdl/soap/" /> </wsdl:port> </wsdl:service> </wsdl:definitions>

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  • Unique element ID, even if element doesn't have one

    - by Robert J. Walker
    I'm writing a GreaseMonkey script where I'm iterating through a bunch of elements. For each element, I need a string ID that I can use to reference that element later. The element itself doesn't have an id attribute, and I can't modify the original document to give it one (although I can make DOM changes in my script). I can't store the references in my script because when I need them, the GreaseMonkey script itself will have gone out of scope. Is there some way to get at an "internal" ID that the browser uses, for example? A Firefox-only solution is fine; a cross-browser solution that could be applied in other scenarios would be awesome. Edit: If the GreaseMonkey script is out of scope, how are you referencing the elements later? They GreaseMonkey script is adding events to DOM objects. I can't store the references in an array or some other similar mechanism because when the event fires, the array will be gone because the GreaseMonkey script will have gone out of scope. So the event needs some way to know about the element reference that the script had when the event was attached. And the element in question is not the one to which it is attached. Can't you just use a custom property on the element? Yes, but the problem is on the lookup. I'd have to resort to iterating through all the elements looking for the one that has that custom property set to the desired id. That would work, sure, but in large documents it could be very time consuming. I'm looking for something where the browser can do the lookup grunt work. Wait, can you or can you not modify the document? I can't modify the source document, but I can make DOM changes in the script. I'll clarify in the question. Can you not use closures? Closuses did turn out to work, although I initially thought they wouldn't. See my later post. It sounds like the answer to the question: "Is there some internal browser ID I could use?" is "No."

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  • Creating a MSI patch (.msp) by hand?

    - by Jerry Chong
    Our team has recently been considering pushing out a minor registry fix to users to modify one particular problematic key. Pretty straightforward stuff, just needed to update 1 key/value inside the registry. So at the moment, we are using Wix to build .msi installers for the product. While looking into Wix's support for generating .msp patch files, it seems that the only way to create an .msp is a somewhat overcomplicated multi-step process to: Get a copy of the original MSI, and compile a new copy of the fixed MSI Write a new Wix file that points to both installers Compile the Wix file into a .wixobj with Candle to a .psp Run Torch/Pyro over before/after snapshots of the original installers and the .psp, or alternatively using MsiMsp.exe Now my question is, can't I simply describe the registry change into a Wix file and directly compile it into the .msp, without step 1 and 4 - which is a huge amount of effort for just a simple change?

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  • VS2008 Windows Form Designer does not like my control.

    - by Thedric Walker
    I have a control that is created like so: public partial class MYControl : MyControlBase { public string InnerText { get { return textBox1.Text; } set { textBox1.Text = value; } } public MYControl() { InitializeComponent(); } } partial class MYControl { /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.IContainer components = null; /// <summary> /// Clean up any resources being used. /// </summary> /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Component Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.textBox1 = new System.Windows.Forms.TextBox(); this.listBox1 = new System.Windows.Forms.ListBox(); this.label1 = new System.Windows.Forms.Label(); this.SuspendLayout(); // // textBox1 // this.textBox1.Location = new System.Drawing.Point(28, 61); this.textBox1.Name = "textBox1"; this.textBox1.Size = new System.Drawing.Size(100, 20); this.textBox1.TabIndex = 0; // // listBox1 // this.listBox1.FormattingEnabled = true; this.listBox1.Location = new System.Drawing.Point(7, 106); this.listBox1.Name = "listBox1"; this.listBox1.Size = new System.Drawing.Size(120, 95); this.listBox1.TabIndex = 1; // // label1 // this.label1.AutoSize = true; this.label1.Location = new System.Drawing.Point(91, 42); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(35, 13); this.label1.TabIndex = 2; this.label1.Text = "label1"; // // MYControl // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.Controls.Add(this.label1); this.Controls.Add(this.listBox1); this.Controls.Add(this.textBox1); this.Name = "MYControl"; this.Size = new System.Drawing.Size(135, 214); this.ResumeLayout(false); this.PerformLayout(); } #endregion private System.Windows.Forms.Label label1; } MyControlBase contains the definition for the ListBox and TextBox. Now when I try to view this control in the Form Designer it gives me these errors: The variable 'listBox1' is either undeclared or was never assigned. The variable 'textBox1' is either undeclared or was never assigned. This is obviously wrong as they are defined in MyControlBase with public access. Is there any way to massage Form Designer into allowing me to visually edit my control?

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  • Is there a floating point value of x, for which x-x == 0 is false?

    - by Andrew Walker
    In most cases, I understand that a floating point comparison test should be implemented using over a range of values (abs(x-y) < epsilon), but does self subtraction imply that the result will be zero? // can the assertion be triggered? float x = //?; assert( x-x == 0 ) My guess is that nan/inf might be special cases, but I'm more interested in what happens for simple values.

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  • VS2010 always relinks the project

    - by Rob Walker
    I am migrating a complex mixed C++/.NET solution from VS2008 to VS2010. The upgraded solution works in VS2010, but the build system is always refereshing one C++/CLI assembly. It doesn't recompile anything, but the linker touches the file. The causes a ripple effect downstream in the build as a whole bunch of dependent then get rebuilt. Any ideas on how to find out why it thinks it needs to relink the file? I've turned on verbose build logging, but nothing stands out.

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  • Processing incoming emails on Heroku

    - by Jerry Cheung
    For my side project kwiqi, I use ActionMailer's 'receive' method to process incoming email messages for tracking my expenses. Heroku doesn't have a local mail server running that same code will not work. One solution I've thought of is to periodically hit a controller action that will pull messages from Gmail. Are there other solutions that are reasonable? Is anyone processing incoming emails in Heroku?

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  • Create Embedded Resources problem

    - by Night Walker
    I am trying to add an Embedded Resource I am doing it like it is written in following tutorial http://msdn.microsoft.com/en-us/library/e2c9s1d7%28VS.80%29.aspx But I cant the Persistence property from Linked at compile time To Embedded in .resx It always gray at Linked at compile time . Any idea why i have this problem ? Thanks .

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  • Why does TabStop stop working??

    - by Jerry
    I have a project that uses a series of auto-generated user control instances. The user-control itself exists, but I populate a panel with a series of these user controls, one for each item in my collection. Each user control displays a ton of information, but only ONE text field is editable. All of the other fields have TabStop set to false, and are marked as ReadOnly. The tab order of each user control is set at the time it is created so that the tab-key goes from one field to the next (or ... it's supposed to). When I have TWO fields on my user control whose TabStop is set to true, everything works great. But if I only have ONE field whose TabStop is true, the tab key stops working, and I have to physically CLICK on the next user control for it to gain focus. What's up? Has anyone else seen this behavior? Am I doing something stupid as usual?

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