Wpf - Have A Control Which Has A Button Named "btn1" - Change It's Contents Through A Dependency Property In XML?
Aug 23, 2011
I have a control which has a button named "btn1", and I want to change it's contents through a dependency property in XML, like this:
<UserControl:UserControl1 ButtonContents="Something"/>
Here's what I have:
Public Class UserControl1
Public Shared ReadOnly ButtonContentsProperty As DependencyProperty =
DependencyProperty.Register("ButtonContents",
[code]....
But how can the dependency property know what to do?
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Jul 27, 2011
I have a user control with its own context menu, however I need to add additional items to that menu.
The approach I took was to have a dependency property called ContextMenuItems:
Public Shared ReadOnly ContextMenuItemsProperty As DependencyProperty = DependencyProperty.Register("ContextMenuItems", GetType(ObservableCollection(Of MenuItem)), GetType(SmartDataControl), New FrameworkPropertyMetadata(New
[Code].....
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Mar 10, 2010
I inherits textbox Control and I added some new properties to it .one of these properties value i want it to change it's value in desgin time when i change Name property of the new textbox
Public Class NewTextBox
Inherits TextBox
Private _txtSubName As String = String.Empty
That is the property for set or get SubstringName of Textbox
Public Property SubName() As String
Get
Return _txtSubName[code].....
that's the property i want to change it's value when i change Name property of the control.i tried to overrides Name property but it's not overridable also i trieds to overloads it but it doesn't work in desgin time.Here is something i tried but it's wronge.
Private _txtName As String = ""
Public Overloads Property Name() As String
Get[code]......
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Dec 6, 2010
I have a custom Dependency Property defined like so:
public static readonly DependencyProperty MyDependencyProperty =
DependencyProperty.Register(
"MyCustomProperty", typeof(string), typeof(MyClass));[code]....
Now I try set that property in XAML
<controls:TargetCatalogControl MyCustomProperty="Boo" />
But the setter in DependencyObject never gets hit! Although it does when I change the property to be a regular property and not a Dep Prop
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May 15, 2010
My company is stuck on .Net 3.0. i need to bind the IsChecked property of the CheckBoxResolvesCEDAR to the CompletesCEDARWork in my Audio class. The more I read about this it appears that I have to declare CompletesCEDARWork as dependancy propert, but I can not find a good example of how this is done. I found this example, but when I pasted into my code I get an "is not defined" error for GetValue and I have not successfully figure out what MyCode is supposed to represent.
Public Shared ReadOnly IsSpinningProperty As DependencyProperty = DependencyProperty.Register("IsSpinning", GetType(Boolean), GetType(MyCode))
Public Property IsSpinning() As Boolean
[code]....
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May 25, 2010
[using VB.NET, but I can easily read C# code in responses]I have a class called QuestionClipboard with ALL shared methods/properties. I previously had a QuesitonClipboard.doesClipboardHaveContent function that returned true/false if there was a Object on my 'clipboard'.I'd prefer to implement a Dependency Property so I can allow this true/false value to participate in data binding.The "GetValue(dp as DependencyProperty)" method requires an object instance, which would mean that my Property CAN'T be shared!Here is what the code would look like in my perfect world... Of course, the word "Shared" before the property declaration renders this code useless.
Private Shared clipboardHasContentPropertyKey As DependencyPropertyKey = DependencyProperty.RegisterReadOnly("clipboardHasContent", GetType(Boolean), GetType(QuestionClipboard), _
[code]....
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Aug 25, 2011
I have a custom class and my dependency properties won't work with bindings unless I declare the class as a static resource.
My xaml:
<sdk:Frame prism:RegionManager.RegionName="MainContentRegion">
<sdk:Frame.ContentLoader>
<myLibrary:RegionNavigationContentLoader
RegionManager="{Binding RegionManager}"
RegionName="MainContentRegion" />
[Code] .....
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Jul 21, 2011
I'm trying to update a dependancy property in VB.Net 4.0 inside of an Async callback. I feel like I am doing this correctly but I'm still getting the "The calling thread cannot access this object because a different thread owns it." error. Does someone see a better way of using delegates in VB.Net 4.0?
Private WithEvents myObj as CallingObject
Private Delegate Sub MyErrorDel(ByVal strError as string)
Public Property ErrorMessage As String
[code]....
Whenever ErrorMessage gets set inside of DisplayError an exception gets thrown, even though I am using the dispatcher to call DisplayError.
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Mar 4, 2012
how would i go about changing the text property of a button when clicked. Im using panels to switch between what the form shows but when i click the button to switch panels i want the text of the button to change but i cant figure out what property to change and how to go about doing it.
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May 4, 2012
I am using Visual Basic 2010 and added a single image through the designer. The name of the image is "add.png". When I reload my form it gives me an error:
Warning 4 The type 'MyProject.My.Resources.Resources' has no property named 'add'. F:Vb2010MyProjectMyProjectFormsFrm.Designer.vb 599 0
Me.btnNew.Image = Global.MyProject.My.Resources.Resources.add
I Change this code to This :
Me.btnNew.Image = Global.MyProject.My.Resources.add
But its not work properly
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Jan 26, 2010
is there a way so that a button will get it's Text Property from an array on form load?
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Jan 12, 2012
I am inheriting my own DataGridView (say MyDataGridView) from the standard DataGridView control. What I want is that certain properties of MyDataGridView should have a different default value than what its base have. For example, AllowUserToAddRows, AllowUserToDeleteRows, AllowUserToResizeRows properties should have the default values of False; so that when I drag MyDataGridView into a form in the IDE, the default values shown in the properties grid should be False. Later on, if I want to change them to True from the grid, they will be set accordingly.
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Feb 7, 2010
I just want a program compiled in Visual Basic 2008. which can just submit a form of only one field. the form is already uploaded to the server but i don't want to go to that url every time to do so.What I want here, just to open application and fill that field and submit. Is this possible in visual basic 2008?Also let me know how to create a button that can rapidly submit the form repeatly untill the second button named cancel is pressed.
field name of that form is "msisdn" and the action on submit button is post method and url in target is url...
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Jul 23, 2010
This problem refers to VB 2008. My ListView Property is named lvSummary, View is set to Details, 2 columns are defined, and this is the code is being called when I click on the menu Summary item:
Private Sub mnuSummary_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuSummary.Click
Summary.ShowDialog()
Summary.lvSummary.Items.Clear()
[code]....
The problem is that when I click on the Summary menu item the first time, the numbers "1" and "2" do not appear in the listview columns. I then close the window by clicking on the OK button, then immediately click on the Summary menu item again, and this time the numbers DO appear! What am I doing wrong to cause these numbers to not appear the first time?
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Oct 6, 2010
how to invoke methods, but how does one change a simple property?
For demonstration-sake, here's a very simple set of code that should help. Let's say I need to set the visible property from a child form, and thus, it needs to be invoked:
Friend Sub activateItem(ByVal myItem As PictureBox)
If myItem.InvokeRequired = True Then
????
[Code]....
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Apr 7, 2010
I can't seem to get this to work so I need a fresh set of eyes on it! I have a combobox dropdown with some names. When I select a certain name from the list, I want it to change the textbox property.I tried :if combobox1.selecteditem= "edward" thentextbox1.maxlength= "2"
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Mar 26, 2008
In my never ending search for more knowledge, I have come across Partial Classes. I was wondering if some of the kind people who actually understand the uses could explain some of them to me. Now I know that when we create a form that we actually create a partial class which the generator rewrites when we add a control or change a property at design-time, and this allows us not to have to worry about setting up the controls ourselves.
[Code]...
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Jan 25, 2011
Can I change my button control to toggle-button? Is there any simple way to change the button property to make it toggle button?
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Jan 13, 2010
I want to add a custom property to a button in window form. Currently i am using following code to create my logic. but i want to create an enum value for a button control.
btnPartyDetails.Text = "View";
{}
btnPartyDetails.Text = "Add";
{}
[Code]...
I want to do something like this, where ActionType will be my enum.
I also want to create custom event based on the value set. How can i do this ?
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Apr 1, 2010
I need some help to understand my options to get this working. I try to update a textbox control by a property-changed event from a class variable. I've digged around for a day and have a vague understanding that this can be solved in three ways:
1. Using some "if InvokeRequired", "Invoke" code in the handler method
2. By programming a special delegate class for this variable
3. By using a databinding directly linking the control (textbox) to the class event
Now.. Are these options correct? And would it be possible to get some help to show these three solutions in actual code (relevant to mine)? I can't seem to manage to sort all the information to a working code. Also, what are the pros and cons of the different solutions?
As my code stands now, it's obviously none of the above, as it gives a cross-thread error, as indicated.
[Code]...
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Jun 17, 2012
Long story short I made a form in VB.Net project which involves lots of icons and images. My problem is when I build my project, and then go back to that form, suddenly errors showed up.
The errors says : "The type 'MyProject.MyResources.Resources' has no property named 'myicon'". Just to be clear, it worked fine before I did the build, and it happened to every single images I have on Resource.
When I chose "Ignore and Continue" all of the images I used are gone. I tried to googled it, some says to delete my .exe file on Application/Bin/Debug folder, which is working. But this issue has been some kind of an annoying one, since it happens again every single time I build.
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Jan 10, 2012
I have a Fileupload control on my Page. I want to change browse button's style.
<asp:FileUpload runat="server" ID="fuAttachment" CssClass="mediumResolution required"
size="50" Width="100%" />
how can I do that?
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Nov 6, 2009
I have an application going here Form1 has a panel on it named TargetPnl. I need my TargetPnl to display my user control named Vviewer when I click my SearchBtn and also need it to disappear when I click another button.
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Aug 25, 2011
How do I set button1.image to the image resource named in a string?
if my_string = "image1" then
button1.image = my.resources.image1
else if my_string = "image2" then
button1.image = "image2"
...
else if my_string = "image30" then
button1.image = "image30"
end if
Is there an easier way to do this?
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Jan 29, 2009
I have created a program that has 5 radio buttons and each button is named after a city. When clicking these buttons a picture of a landmark of that city comes up. However, I would like to enable my "clear" button.I have found a couple of examples such as;
Private Sub Clearbutton_click' Clear previous amounts from the form.
Titletextbox.clear()
Pricetextbox.clear()
end sub
So is what I attempted to do is under my DetroitButton1 i did a
[Code]...
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Aug 21, 2011
I've got a number of buttons in an 8x8 grid named cmd_A1, cmd_A2, etc all the way to cmd_H8.
I want to have a string that contains the name of a particular button, and then use that string to access a particular button.
1) Dim button_string as string = "cmd_A1"
2) Dim current_button as button = [the button named in button_string]
3) current_button.text = "♖"
How do I do step 2?
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Oct 20, 2010
How can I get the text in a text area within a form in browser control? Is there a method?
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Jan 13, 2010
I'm working on a simple base form in which all the other forms in the project will inherit. This base form only adds 5 properties (at the moment) dealing with painting a gradient background. The problem I'm facing right now is when I change a property on Form1 (the test form) and click run it doesn't show that change. I also checked the .designer.vb file and when I make a change it's not added to the code behind file, I'm at a loss right now to why.
[Code]...
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Feb 26, 2010
I created a button control ,, by double clicking only the process was going on,,when iam single click the button nothing is to be happenend,,so i want to change into single click insted of double click........here my coding is given below.......
<asp:Button ID="getrec" UseSubmitbehavior ="false" runat="server" Style="left: 30px; position: relative; top: 0px; z-index: 101;"
Text="Get Record" />
[CODE]...
Here the coding is all are correct but the problem is when double clicking the button only it was worked ,,,iwant want to change it into single click
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May 12, 2011
I have a pair of dropdown lists, they are linked in the sense that in it is basically a 2-d array. I have a list of accounts, and a list of domains for each account. So based on which account the user selects from the dropdown, I need to populate the domain list with the appropriate selections. Is there a way I can do this without [code]...
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