I am filling up a Stackpanel with Textboxes. Each textbox, Should display the Value Property of a Class i have written.
The number of Textboxes is always different so i can't create a databinding in the xaml file.
Are there tutorials, that show how can i archive my goal?
Edit: Thanks for the replies so far. After reading the articles i still not clear how to implement my Problem.
Here is what I'm trying to achieve:
I have an SQL Server DB and there a Table with an ID and a Value.
I now load all Values and IDs i want to display into my application. (number of loaded rows is always differnt).
I need to display a textbox for each row and display the value there and after the value is changed i write the value back to the database.
I don't know how I should query the data and than bind it to the textboxes.
I don't need an implementations, I am happy with every piece of advice I can get.
yes there are a number of tutorials out there. It sound like you are interested in datatemplating.
I would suggest looking Here on MSDN. A few tutorials on databinding in general may be useful DataBinding on MSDN
If your class, classValue, has a public property Value then just create a List and bind that to a ListBox with the item DisplayValuePath = Value. Repeater controls are used to bind to collections.
Related
I have two lists of different object types in my ViewModel. For example I'd say the first one is a list of all available images, the second one is a list of all articles. Each article belongs to an article category for which I'd like to show a thumbnail in the GUI when an article is selected and shown. For the sake of a simple example I assume that the Id of the category equals the Id of the corresponding image.
For a ComboBox this would be an easy task: I would assing the list of all images as ItemSource and then the article's category key to the SelectedValue. The SelectedValuePath would have to point to the Id of the image.
However a ComboBox does not make sense here as I only want to display the correct category image - I do not want any editing, a dropdown, etc... How would I solve this with a regular Image-UserControl (or maybe a similar UserContro)?
BTW: Right now I have to use an additional Property on my Article class which directly holds the correct image, but I think there should be a better way to solve this issue.
Any ideas?
Regards
ralf
There's no problem with creating a get-only property on your ViewModel that provides the image that the view should bind to. The whole point of ViewModels is to shape model data into a structure suitable for binding views to.
I am looking to bind a richtextbox's text property to an array or list of custom objects. Is this possible? I see lots of WPF related binding for richtextbox but I am doing this in winforms. My searches for an example article have not turned up anything of value yet. Figured I would ask here.
One of my database calls returns to me a list of specific instructions and I would like to stuff this entire list of instructions into the richtextbox all at once. The text property does not support an IEnumerable type so I am not sure if I can do what I am trying to do or not. I was looking for a method to fill my richtextbox without all the for looping and inserting one item at a time. I figured data binding was the best fit for that.
I've run across the same problem and have solved it by creating a custom ValueConverter. The code for it can be found here.
Basically it takes an IEnumerable in and then returns a string with a custom separator (defaults to NewLine).
I need to get all the cells within a certain column.
there is no property called "Cells" in the GridViewColumn class.
Is there any other way of doing this?
Thanks.
May I ask you the purpose of getting those cells? And when you say you want a cell, do you want the visual of that cell or the data associated with it?
If it is data, then getting it directly from your ViewModel will be a preferred approach. So if you are following proper MVVM while implementing this, you can have a method in the ViewModel which can easily expose you a specific collection of cell-data corresponds to a column
Have a look at http://techiethings.blogspot.com/2010/05/get-wpf-datagrid-row-and-cell.html
I am eager to find some solid (free, Open Source, or tutorial/example) code to make a WPF Combobox do autocomlete/autofilter as the user types. But everything I've tried so far has had some sort of problem...
A Reusable WPF Autocomplete TextBox came close, but I can't get it to work with more than one filter (more info here).
WPF autocomplete textbox/combobox doesn't work for me because it inherits from UserControl, and thus doesn't support the DataTemplates I need (for showing/selecting the value of one property for an object with multiple properties).
Automatically Filtering a ComboBox in WPF didn't work because it doesn't seem to ever find the EditableTextBox portion of the inherited ComboBox code (via (TextBox)base.GetTemplateChild("PART_EditableTextBox") which seems to always returns null).
Building a Filtered ComboBox for WPF just gets stuck in a refresh loop then overflows the stack after I type just a few letters.
Other things I've considered:
I know that Windows Forms' Combobox control has AutoCompleteMode and I could embed it in WPF, but I can't imagine it would play very well with my WPF data bindings.
Perhaps it is too complex and I need to simplify, maybe by building one-dimensional (single-property) ObservableCollections for the ComboBoxen... However, the challenge of applying multiple filters (one set by another control's value, and one from what the user is typing) to multiple controls using different views of the same DataSet would require a ridiculous amount of processing power to destroy and rebuild the list every time the user types a character!
So... I'm at wit's end. Any suggestions?
If your Combobox has some data source attached to it ,
just make
1-IsTextSearchEnabled = true.
2-IsEditable = true.
you are good to go
Try this one:
http://blogs.windowsclient.net/dragonz/archive/2010/02/23/autocomplete-textbox-control-for-wpf.aspx
Greetings to all and sorry for my English!
I have a ListBox, it's ItemsSource = myClientsList.DefaultView. The Items of ListBox have a template (ControlTemplate), that is defined in a in a separate resource file.
Every Item contains a little TextBlock's, Text -property of each have a binding to fields of my Object myClientsList.
I need to add in a this item template more TexBlock's and each of them must have binding to fields of another my class myOrdersList. - (So I wish to view on each line of ListBox information from different tables of my database - this is a question).
Problem in that that ListBox's ItemsSource have a link to object myClientsList and I cann't set myOrderList to ItemSource of same ListBox. So i must find a way to specify TextBlock.DataContext wich inside ControlTemplate or how it's possible to solve this problem in another way?
p.s. I'm a new in .Net and WPF and probably have a mistakes in my explanation - sorry for it.
It sounds like you have a DataGrid type of display and want to add more columns in order to display the order information for a given client. If this is the case, you are going to have to do a couple of things. First, you will need to create a composite object that stores information for both entities into a single object (so each row of your control has all the data it needs to display). Secondly, I would recommend using an actual DataGrid control to display rows instead of templating a ListBoxItem. The ListView with a GridView built into the framework isn't great, so I would recommend the WPFToolkit's DataGrid for a free option.
There are two issues here, if I've understood the question: how do you create a single collection containing both Clients and Orders, and how do you display Clients and Orders in different ways within the same ListBox?
Regarding the first, you can do this using a CompositeCollection.
Regarding the second, define two DataTemplates instead of a ControlTemplate. As the key of each DataTemplate, use the type of the object it is going to present e.g.
<DataTemplate x:Key="{x:Type local:Client}">
Alternatively, use ItemsControl.ItemTemplateSelector to explicitly point at different DataTemplates depending on the type of item. Ot if you really have to use ControlTemplates, check out ItemsControl.ItemContainerStyleSelector.