Wpf - DataTriggers In Expression Blend?

Mar 1, 2010

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>

[code]....

The Gems do not return to their unlit state (which they never were in the first place). They only remain lit.

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How To Use WPF And Expression Blend

Mar 17, 2012

Does anyone know any good places to learn how to use WPF and Expression blend ?

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Simulate A Keyboard Shortcut In Expression Blend / WPF?

Sep 29, 2008

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.

[Code]....

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Wiring Up Blend 3 With VB?

Aug 2, 2010

All 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

[Code].....

As soon as I can get this very first initialization down, I know I can get the rest of the events written fine.

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Any Way To Blend Several Pictures (Textures) Together

Jul 4, 2009

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.

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Control Inheritance With Blend In Silverlight 3

Apr 7, 2010

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.

[Code]...

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Use A Control Created In Blend To Application?

Apr 17, 2009

I have created an animated button using Microsoft Blend 2I want to use it in my Vb.net windows application

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Interface And Graphics :: Blend Edges Of Photos ?

Feb 9, 2009

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.

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Making An Application Blend In With The Windows Theme?

Oct 8, 2010

Previously 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?

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Blend Two Images Together With A Varying Amount Of Transparency Using A Scroll Bar

Sep 2, 2009

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?

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Stop A Storyboard Which Is Created In Blend And Programatically Running

May 25, 2009

How do I stop a storyboard which is created in blend and programatically running from VB?

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Wpf - Move Something Made In Microsoft Blend Into Visual Basic?

Apr 11, 2011

I 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.

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VS 2010 DynamicBitmap - Class Mod Perfect For Games Includes Alpha Blend Pathfinding?

Jun 18, 2010

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.

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Delegate 'System.Threading.ThreadStart' Requires An 'AddressOf' Expression Or Lambda Expression As The Only Argument To Its Constructor?

Jan 23, 2010

I got this Error. below is my code.

GenerateTheList is function.Need help
Private Sub buttGenerate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles buttGenerate.Click
Dim thread1 As New Thread(New ThreadStart(GenerateTheList))
thread1.Start()
End Sub

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Code To Put In An Expression To Add Database Columns In A Row And Display It In The Expression Column

Mar 21, 2010

While looking in the dataset designer for a database table I am doing in visual basic 2008 I found a line for expressions under the property menu for a specific column. I need to know the code that I would put in this expression line so that this column adds up the numbers I input into three other columns and displays that number in the column. I need it to automatically calculate this for each row in the database table.

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DataColumn.Expression: How To Use A User Defined Function In Expression

Oct 12, 2010

I am trying to write following expression on a datacolumn. But it results in error:Replicate('*', nLevel) + NameWhere: Replicate() is a user defined function (in a module). nLevel and Name are two other columns in same data table.

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Expression Parsing Using FLEE And Custom Expression Context

Jun 12, 2012

I am using Flee to build a formula builder. It works great but the only problem I'm facing is that Flee doesn't understand Generic Methods I guess. I have a function called IIf declared in the expression context I'm using. [code]How can I work around this. I mean cannot , in sense, write all possible overloads of the function of all .net primitive types. What approach should I take.

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AddressOf' Expression Or Lambda Expression

Feb 22, 2009

From this code

[Code]...

If I put New Action(AddressOf PrivateMesage), then I get the following error: Bounds can be specified only for the top-level array when initializing an array of arrays. on the following code

[Code]...

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Converting Arithmetic Expression With Operators In A String To An Operable Arithmetic Expression

Feb 5, 2010

I must convert string data from a CNC that is arithmetic expression to a number that I can use in a VB application that I wrote. The following is what I get out of the cnc. [18722*65536+19377]/67108864. I need to evaluate this expression in my VB ap. The format of the string is not always the same as what I have illustrated.

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The Name "The" Is Not Permitted In This Context. Valid Expression Are Constants, Constants Expression, And (in Some Contexts) Variables

May 31, 2012

I am calling this function when a button is CLICKED and received the error; The name "The" is not permitted in this context. Valid expression are constants, constants expression, and (in some contexts) variables. Column names are not permitted. Unclosed quotation mark after the character string 'True)'.

The function is as follows;

Private Sub Save()
Dim conn As SqlConnection = GetDbConnection()
Dim query As String
Dim cmd As New SqlCommand

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Equivalent Expression In VB For This C# Expression ?

Jun 28, 2009

I would like to know the equivalent expresion in VB for this C# expression: Container.TotalRowCount > 0 ? Math.Ceiling(((double)(Container.StartRowIndex + Container.MaximumRows) / Container.MaximumRows)) : 0

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.net - Getting The Regex Expression?

Apr 8, 2011

i have a string similar to this one:

Hi, <<
ame>> <<surname>>, this is an example << est>>.

I what a regex that match and split this string in:

"Hi, "
<<
ame>>
" "

[code]....

I tried this one: (<<*.*?>>)|(>>*.*?<<), but doesn't work.

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.net Equivalent Of C# Expression?

Jan 10, 2012

What is the vb.net expression of this c# expression ?

Frame.GetController<ShowNavigationItemController>().CustomShowNavigationItem += new EventHandler<CustomShowNavigationItemEventArgs>(WindowController1_CustomShowNavigationItem);

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Asp.net - Use Class Name As Expression?

May 28, 2011

I'm not sure if this is possible but I would like to associate a class name reference to a shared member method / property / variable. Consider:

Public Class UserParameters
Public Shared Reference As Object
Public Shared Function GetReference() As Object

[Code]....

In another part of the program I would like to simply call UserParameters and have it return Reference either by aliasing GetReference or the variable directly.

I am trying to emulate the Application, Request, or Session variable:
Session(0) = Session.Item(0)

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C# - Lambda Expression: CS To .Net?

Aug 24, 2011

I am dumb founded at this statement....maybe its just too many hours/days of doing C# to VB.Net conversion but i am drawing a blank on this conversion.

List<string> sColors = new List<string>(this.CustomPaletteValues.Split(','));
try {
List<Color> colors = sColors.ConvertAll<Color>(s => (Color)(new ColorConverter().ConvertFromString(s)));

What i have so far:

Dim colors As List(Of Color) = sColors.ConvertAll(Of Color)(....)

As you can see its the content of the lambda that i am hitting a brick wall with.

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C# - When Are ASP Expression Builders Most Useful

Jun 16, 2009

I saw an example of using Expression Builders, and creating your own Custom Expression Builder Classes here: [Url] However, I fail to see the value in using this approach. It doesn't seem much easier than programmatically setting values in your code behind. As far as I can tell, the only thing you can do with them is set properties. Maybe they would be useful for setting defaults on certain controls? Can anyone shed light on where this ASP.NET feature becomes powerful?

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Convert VB6 Expression Into .Net?

Nov 29, 2011

The code you posted while similar to VB6 has method and syntax that is very similar to Crystal Reports Scripting Language

[Code]...

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Equivalent C# Expression In .net ?

Feb 19, 2010

i didn't want to trust this one to any number of online conversion websites that I often use.I don't need to convert the declarations, just the expression '(byte)((flen & 0xff00) >> 8)'in

byte[] sendFrameData = new byte[280
ushort flen
sendFrameData[7] = (byte)((flen & 0xff00) >> 8);

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Expression Does Not Produce A Value

Oct 28, 2009

'I am having trouble with the line "senda = suba(sendaobj, EventArgs.Empty)". [code]...

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Expression Does Not Produce A Value?

Aug 25, 2009

Here's the

Sub DestroyUser(ByRef Victomcheck As Integer, ByRef Victorcheck As Integer)
Dim num As Object
WriteSub("destroyuser")

[Code]......

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