i would like to create a custom base class for some of my UserControls. Doing this in VS2008 is fine and compiles as expected, but when i edit the control in Blend 3 the base class in the blabla.g.vb is always changed back to System.Windows.Controls.UserControl.
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I have created an animated button using Microsoft Blend 2I want to use it in my Vb.net windows application
View 3 RepliesI tried it and get an error but maybe I'm tring the wrong way. Can a usercontrol inherate an application defined class ie.. could you inheritance a classic rect class into a user control to add the hight and width properties to the control without having to do all the coding all over again? Currently I just declair a private instance of the class within the control and then encapsalate. It would be nice if I could just inherit all the functionality of my classes into controls designed to implament the classes.
View 1 RepliesWe have a ASP.NET web application written in VB.NET where we build content programmatically during the Init event.We make extensive use of user controls, building them on the fly, and I now want to start including SilverLight content.Is there an easy way of embedding a SilverLight application in a control, and then instantiating the whole thing in code, in the same way as you'd programmatically add ordinary ASP.NET controls to a page?The SilverLight component itself works fine when added to a page using the <object> tag but I really want to be able to reuse it elsewhere in code.Since I'm expecting use of SilverLight to increase in our application, and the asp:Silverlight control seems now to be deprecated, I'm looking for an alternative way of wrapping the content.
View 1 RepliesI'm developing a VB app, part of which has a 'diary page' metaphor. The page is a panel and I want to put be able to put several different kinds of events on the panel. I've used a User Control for the first type, which works well, and it occurs to me that this and the other events have many properties and methods in common.
So I am wondering if it is possible or desirable to create a 'base' user control with the common properties and methods and have the other events inherit from that? (I am using the word event in the sense of a meeting or workshop rather than a Windows event).
I know one can do Visual Inheritance from a form and I've made a first attempt at applying the same process to my User Control, but when I open the 'inherited' control in the designer, all the properties are disabled and child controls are locked, even though the access modifier is 'Protected'. But I am still feeling my way with inheritance and I'm probably doing something dumb ...
Another approach would be to use MDI, but that feels a bit 'heavyweight' for this app ....
In my application i will use a customized datagridview for all the application, so instead of adding the normal datagridview and changing the properties, i created an user control and changed the inherited to datagridview... This have a problem i can't use the drag and drop...
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I've got a tab control and want to dynamically add tabs depending on the output from a database. I can easily add a new tab, however I want to inherit the controls and layout from the initial tab.
View 7 RepliesI seem to be having a problem with controls that I am creating as new classes (not UserControls) inheriting from an existing system control. Everything seems ok while I create the control code, through to the compile (which is successful and adds the control to the toolbox) and dragging the control from the toolbox to the GUI surface. However, when I then debug or compile the project, I get a message such
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I have a LOB app written in VB.NET with a WinForms front-end and SQL back-end. After many months weighing up how to get onto the Web, I decided last month to use Silverlight 2. Now, Silverlight 3 Beta is out, but there is no end-user runtime.
Does anyone know when the runtime will be available for deployment of SL 3 apps onto client sites?
My dev timeline is about 3 months: should I persist with SL 2 and then u/g to SL3, or jump straight in to SL3?
Does anyone know any good places to learn how to use WPF and Expression blend ?
View 1 RepliesAll I am trying to do is get my dumb button I created in Blend 4 work on a _Click event. I have the C# equivalent code, but I can't get it converted correctly...Here are both codes...I am using VS2010 just in case you want to know..
C# Code
namespace TestButton1
{
public partial class MainWindow:Window
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As soon as I can get this very first initialization down, I know I can get the rest of the events written fine.
I'm trying to blend a few textures together to "bake" the final texture. Since I need the actual resulting bitmap, I don't think I can/want to do this using DirectX or OpenGL. I have:
- 4 Textures (RGB, 2048x2048): t0, t1, t2, t3
- 3 Alphamaps (ARGB, the RGB value is irrelevant, 64x64): a1, a2, a3
Here's what I currently do for each pixel (in simplified notation):
FinalColor = ((t0 * (1 - a1) + t1 * a1) * (1 - a2) + t2 * a2) * (1 - a3) + t3 * a3
This works fine, however, it takes forever, because I have to iterate over a 2048x2048 image pixel by pixel. Is there a more elegant way to solve this (i.e. using graphics.drawimage or something like it, but then, how?) How can I scale to Alphamap up with bilinear/bicubic interpolation (without having to do it pixel by pixel)? I currently use the original resolution, but that leads to rather visible transitions.
I have a listbox that displays Shipment Items (custom class) that are formatted using a datatemplate (see below). There is a border element in the template (I am calling it a Gem) that displays which item is active (not selected) which will be the item to which products will be added.
template.png
There is a boolean property in the shipment class (Active) which is set in a click event handler for the Gem element. Normally the Gem is supposed to be dark as in the first image, then lit when active. I have a DataTrigger set up in the DataTemplate to handle the change in the color of the Gem.
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Active}" Value="True">
<Setter TargetName="ActiveGem" Property="Background">
<Setter.Value>
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The Gems do not return to their unlit state (which they never were in the first place). They only remain lit.
I'm trying to do for a website. I've got a header banner that is 900px wide, and I want to display 4 random images across the banner. (I've got about 20 photos at this point, and I want the header to select from them.) I can get the code for the random selection, but what I'm looking for is a way to blend about 10 pixels near the overlap. If I have each picture exactly 225px wide, I get a "hard" line between the images. I'd like to make the images a little bit wider and soften the edge by overlapping and blending the images together. I have figured out how to get the image back to the web browser, but I don't even know where to start on trying to figure out the blending. Graphics really aren't my thing.
View 2 RepliesPreviously I used to piddle around with VB6 to develop a couple of personal projects. Following my upgrade to Windows 7, I've decided to piddle about with vb.net Express Edition 2010.If I wanted my VB6 application to blend in with the visual style of Windows, I would use the code and techniques described here. In short, I would use a Manifest file and a couple of calls within the application and most of the elements would look similar to the XP theme applied. If it was run on 2000, 95 or 98 then it would look like a standard Windows app. All was good.
Now I've moved onto vb.net, I've written a simple "Hello, world" application but I have absolutely no idea on how to make it look like the Windows 7 theme (eg. the font matches the system font and the widgets are styled correctly).Just changing the font is a hack and will look out of place on machines that are set-up differently or run a different version of Windows where the default font is different.How do I ensure my application matches the applied Windows theme irrespective of the version of Windows?
I have a project, in which a user can click a button- even if he's using different program- that button in the program will simulate a keyboard shortcut and and use it in that current program he's using.
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I want to build a flip clock for my vb 2008 form.But I cant seem to get it done.So I searched and found a flip clock control for not Vb but silverlight.Here is the link
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Is there a way I can use this clock in my vb form.
I want to do is blend two images together with a varying amount of transparency using a scroll bar/trackbar. In software I can do it by drawing an image into a picture box and blending another image on top with a varying amount of transparency but it is using gdi which of course is very slow. I would have thought that it should be very easy with fairly basic modern graphics cards but I am so bogged down with examples of how to draw fancy rotating rectangles etc with direct x that I can't see through it all. Should I look at directdraw, direct3d, opengl?
View 2 RepliesHow do I stop a storyboard which is created in blend and programatically running from VB?
View 1 RepliesI need to submit a project tomorrow, and the topic is WPF using XAML. We are using VB by the way. Now I am still a beginner at programming, so I needed help. I've got a ton of WPF and blend tutorials open in tabs in my browser, but I have no idea where to start, and no idea for a project. I asked my tutor and he said he'll be checking our understanding of XAML, and creating an object using XAML as well as the other way round.
I stumbled onto some tutorials of media players main in WPF, and I decided to go with it. But because I have never used blend or WPF along with XAML before, I don't know what to do, if say I make a button in blend with effects, so that I may add coding behind it in VB. Please help me out. I've got like 15 hours before I have to submit.
Includes alpha blending, pathfinding, grid rendering, and lots of other algorithms that make basic game programing in VB 2010 a lot simpler. Copy the code in the attached text document into a blank class. Then add it to your project. Initialize as you would any other class...
"Dim aGameGridOrWhatever as New DynamicBitmap"Let me know if anyone finds any bugs in the PathFinding algorithm. I finished it tonight. I'll post some examples of how to do stuff to this thread soon.
i am just trying to apply inheritance ..Below is my Code ... on which i am not getting the output on my Text_Box ... when in write it in a Child Class
Imports System
Imports System.Windows
Imports System.Windows.Forms
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Has someone a hint what I'm doing wrong in VB.Net?
Module Module1
Interface ISearch(Of T As ISearchResult)
Function ids() As List(Of T)
End Interface
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The third cast isn't working. Why? did I miss a oop lesson?
What's the choice design that microsoft do that? Of course, as of me, I don't use inheritance a lot, or at all.
View 14 Replieswe have 3 classes:Class S, class A, class B / A and B inherits S.A has a property A1 and B has a property B1.we also have a collection of objects that has A and B objects.ex.
Dim c as Collection = new Collection
c.add(new A)
c.add(new B)
Now we want to make a general object that will read from the collection.
ex .
Dim obj as S
how can we cast obj in order to see properties A1 or B1 according to the class;
Form1
Public Class Form1
Private Sub But_Bell_Click(sender As System.Object, e As System.EventArgs) Handles But_Bell.Click
MessageBox.Show("Ding a ling")
End Sub
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Where has the whistle button gone? The class part of the inheritance has works because you can access it via code.
Why VB.NET (vs C#) does not "inherit" the constructors with parameters?
Public Class StopLine
Inherits Microsoft.VisualBasic.PowerPacks.LineShape
Public Sub New()
MyBase.New()
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I'm facing a problem regarding multiple inheritance in VB.net:As far as I know VB.net does not support multiple inheritance in general but you can reach a kind of multiple inheritance by working with interfaces (using "Implements" instead of "Inherits"):
Public Class ClassName
Implements BaseInterface1, BaseInterface2
End Class
That works fine for classes but I'd like to have an interface inheriting some base interfaces. Something like that:
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What are the situations and their associated benefits of using Generics over Inheritance and vice-versa, and how should they be best combined?I'm going to try to state the motivation for this question as best I can:I have a class as shown below:
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Now suppose I have a repository that takes an InformationReturn argument, that has to strore different fields in a DB depending on the type of Info object T is. Is it better to create different repositories each for the type T is; one repository that uses reflection to determine the type; or is there a better way using inheritance capabilities over/with generics?
I have a base class ("MyBaseClass") in a project called "BaseFramework" which is included in several solutions within the company. There are several derived class's in various projects throughout the company that inherit from "MyBaseClass". If I then create a List and add derived class's to it, it will not serialize. I realise that if I were attempting to serialize this list, and the base class and derived class were in the same project, I could simply apply the "XmlInclude" attribute to the base class and include all of the derived class's. This is however not possible across projects, because that would require a circular dependency.
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