We Keep Coding

In this case, how enable the event handler in a user control

I have a user control that got an image, two textblock, button & integer (in the code class non UI). I have bind this control to the DB and add it in a list with no issues.
But the only thing that is left is. I would like whenever I press the button it pulls the number from the integer in the control and compare that number with the DB and return a result.
Please advise me since I don't know how to do this.

A good place to start will be http://wpftutorial.net/ where you can lear a lot about WPF and MVVM.
Some good key words for you to search and learn in google will be:
MVVM
WPF Binding
WPF Command
MVVM light
These keywords will give you a good start on learning more WPF
In relation to your question above you need to:
1. handle the button click
2. do something
3. place the result in the required textblock
<Button click="some_method_name"/>
public void some_method_name()
{
// do something
textBlock.Text = result;
}

C# WPF onclick change location of listbox and textbox

I am a total beginner in this field so I need some help.
In my application I have to different buttons which has to change to position or location of some elements on click.
I have one Textbox and one ListBox with 4 Listboxitems and on button click their position has to change.
Can you please tell me how to implement this in code.
Thank you so much!

In WPF you normally use the MVVM pattern. If you haven't heard of it, there is a good explanation here. So basically, you listbox is just a presentation of an underlying list of data items. You don't change the presentation listboxitems, but instead change the items in the underlying collection and let the WPF UI handle the resulting update of the presentation layer.
You button should activate a command that switches the data in the viewmodel (or even in the model, depending on your needs). For an introduction to commands, you might find this interesting.

Keeping track of index in an editable listview populated by observable collection

As a WPF newbie, I'm kindof going round in circles trying to work with observable collections.
So here's what i'm trying to do using the MVVM pattern.
I have a form in which I am trying to enter, say, skill sets of a person.
The following is my UI layout and hopefully this will also give you an idea of what my datacontext for each view is
Main Window
SubScreen
TextBlk(not a part of the user Control below)
ListView
UserControl(added to listview Only upon a button click)
ComboBox (ItemSource = SkillsList eg: C,C++, C# etc)
TxtBox (Binding TotalExperience... a number)
Radion Buttons (Bound to skillLevel property eg: Beginner, Expert etc)
Button (Command = Add new skill set row => repeat the usercontrol in a new list view row)
The user Control is my observable collection.
How do I make sure the usercontrol is populated correctly? How do I keep track of which row of the listView I am working on (i.e: adding or editing)? Can I save the collection as a whole for a particular person? All this I am trying to do in the View model...no code behind file.
Apologies if the questions are naive. But the more I read up the more confused I get. Would be great if someone could help me out.

You question is pretty huge to answer. Read this article it shows a good example of a xml only set up
WPF/MVVM Quick Start Tutorial
After you run through the first link it would be worth looking here too
Implementing the MVVM Pattern
Pay particular attention to the INotifyPropertyChanged example. This is how you keep track of which record you are working on.
You will have a model which is passed around, it contains all fields you create in it including the ID if necessary.
Also if you are trying for no code behind then also pay attention to the Commands.
Hope this helps.

WPF C# Change button content from child window

I'm developing a touchscreen app. I have a form with buttons with the content "new player" and then a keyboard with a textbox is shown for the user to enter his name. Now I need that when I close (or while inputting the name) the button from the parent window change the content to the name that the user typed. But I cant make a binding to the parent.. how can I do it??

Are you implementing the Model-View-ViewModel pattern in your WPF application, or using databinding at all?
You don't have to use MVVM, but you should really be using databinding in some fashion.
With databinding, you'd bind the button content to a string property of some object (a view-model in MVVM). That object needs to implement the INotifyPropertyChanged interface. You can bind the textbox on the child window to the same property of the same object.
With that in place, the button will be updated automatically when the user types in a new player name.
If you need more details, please comment and I'll be glad to elaborate.

You can try something like:
var button = this.Parent.Controls.OfType<Button>().Select(b => b.Name == "NameOfControl").First();
button.Content = name;
Edit: And Jay's idea is the right way at going at this, i was just offering an alternative way of accessing the controls from their parent using LINQ.

Conditional binding using mvvm light on wp7

Hi, Please consider the custom wp7 message box above. I am looking to see what is the cleanest way to bind a views textbox to a property on the view model only after a button is clicked. The only way I can work out is to have two properties and use a command on the button to assign the value of the first prop to the main prop. The main prop should only receive the value from the textbox only if the user clicks the tick button and not if they cancel (by pressing the back button).
I am using MVVM Light.

What about catching the click event and sending the changed text from View to ViewModel via Messenger. On ViewModel the property would be only a getter.

I think that the way you do it is ok.
Have a temporary binded property and main property synced with the temporary one only when messagebox is accepted.