I have a pivot control:
PivotItem sectionPivot = new PivotItem()
{
Header = sect.Name,
Content = new StackPanel()
};
How can I add content to it?
Edit: The reason I'm doing it programmatically is because I don't know how many pivots there will be or what they will contain until runtime. Is there some way to do that in XAML?
If you're going to do it all programatically, just add stuff to the stack panel you just created.
var panel = new StackPanel();
panel.Children.Add(new TextBlock() { Text = "Hello" });
PivotItem sectionPivot = new PivotItem()
{
Header = sect.Name,
Content = panel;
};
I typed all that without doing any checking, but hypothetically that should work...
Another answer from me. The OP added info to the question that they don't know how many there could be, and if you could still do it in XAML.
Yes, you can.
The Pivot control has an ItemsSource property, and you could bind that to something in your class that is being populated dynamically.
<controls:Pivot Title="MY APPLICATION" ItemsSource="{Binding MyPivotItemsSource}" />
Each item in that source would end up as a pivotitem. You'd also have to set up templates and stuff, so its still a lot of work...
Related
I'm having some problems displaying the contents of a flowdocument in a flowdocumentscrollviewer. I create a generic list that holds a class which contains an int, string and a flowdocument.
In a WPF listbox, I am trying to display the flowdocument in the scrollviewer alongside a button. I use the following function called from the WPF window constructor to populate the listbox
private void populateListBox()
{
foreach(Element el in _notesList)
{
StackPanel sp = new StackPanel();
sp.Orientation = Orientation.Horizontal;
Button b = new Button();
b.Content = el._theID;
sp.Children.Add(b);
FlowDocumentScrollViewer fdsv = new FlowDocumentScrollViewer();
fdsv.MinWidth = 400;
fdsv.Document = el._theDoc;
sp.Children.Add(fdsv);
ListBoxItem lbi = new ListBoxItem();
lbi.Content = sp;
noteList.Items.Add(lbi);
}
}
But the code does not work. There are no errors but the scrollviewers are just blank in the listbox. I also tried storing the classes in an ObservableList and binding to the Document property but that didn't work either.
Any ideas what is happening?
Nevermind. I figured it out.
Further down in the program execution I was copying the flowdocument blocks to a merged document in a foreach statement. This doesn't work even if you use Blocks.ToList(). I eventually found a way to copy the document contents to another document here.
I have created a ListView with a GridView in code.
ListView gridList = new ListView();
GridView gridListView = new GridView ();
gridList.View = gridListView;
Now, I define a GridViewColumn, set the header, width and bindingPath. All good and the data shows up.
GridViewColumn listColumn = new GridViewColumn();
listColumn.Header = "Some Header";
listColumn.Width = 100.0;
listColumn.DisplayMemeberBinding = new Binding("Name");
gridListView.Columns.Add(listColumn);
But there are no borders/gridlines shown on display of this ListView. How can I add borders through code?
Someone described my exact problem here but no good solution mentioned
http://social.msdn.microsoft.com/Forums/en-US/fa4fa8e0-81fe-487a-8763-590062d29c06/wpf-listview-gridview-row-border?forum=wpf
The logic in WPF programming is totally different from what you've done in winforms. Everything related to UI should always be set up using XAML (as much as possible). The WPF library itself has many parts desgined mainly for use in XAML although there is always an equivalent codebehind. However that's when using codebehind may be awkward and non-intuitive (as well as straight-forward).
I understand that you want something like the ListView Grid in Winforms. In WPF that can be achieved easily if you use XAML code. Even in code behind, you can always build a Style or Template from XAML string (with the help of XamlReader). This approach is good for complex scenario but in this case I have another approach (don't use the XAML parser at all). This trick does render the grid which is good enough (and at best it can do for the trade-off of simplicity):
//we need an instance of Style to set to ListView.ItemContainerStyle
var style = new Style(typeof(ListViewItem));
//set the bottom border thickness to 1
var setter = new Setter(Control.BorderThickness, new Thickness(0,0,0,1));
style.Setters.Add(setter);
//set the border brush
var borderBrush = new LinearGradientBrush { StartPoint = new Point(0,0),
EndPoint = new Point(1,0)};
var gradStop = new GradientStop(Colors.Transparent, 0.001);
borderBrush.GradientStops.Add(gradStop);
gradStop = new GradientStop(Colors.Green, 0.001);
borderBrush.GradientStops.Add(gradStop);
gradStop = new GradientStop(Colors.Green, 0.999);
borderBrush.GradientStops.Add(gradStop);
gradStop = new GradientStop(Colors.Transparent, 0.999);
borderBrush.GradientStops.Add(gradStop);
setter = new Setter(Control.BorderBrush, borderBrush);
style.Setters.Add(setter);
yourListView.ItemContainerStyle = style;
Note that the default inner Border of each ListViewItem has a hard-coded CornerRadius of about 2, so by setting just the bottom BorderBrush to a solid brush such as Brushes.Green will show a little upwards curly line at the 2 ends of the bottom border. You can try it yourself. If this result is acceptable, the code can be shorter and simpler (because you don't have to define the GradientBrush to cut-off the 2 curly ends) like this:
setter = new Setter(Control.BorderBrush, Brushes.Green);
style.Setters.Add(setter);
If the behavior is still not what you want. You should try the approach I mentioned about using XamlReader to parse a XAML string and get an instance of whatever you want in codebehind. (you can search it yourself, it's easy to have some result).
I suggest you see this link, it contains a dynamic GridView created in code-behind that can be useful for your specific case. For the code sample that you provided, you didn't add ShowGridLines property.
I have a multiple textblocks on my usercontrol Layoutroot the problem is how can I find a particular TextBlock by its name?
Thanx
var myElement =
((FrameworkElement)System.Windows.Application.Current.RootVisual)
.FindName("TextBlockName");
should work in this case, if the textblock has already been rendered.
To be able to easily traverse the visual tree more generally like #ColinE mentioned, you can also use the Silverlight toolkit.
// requires System.Windows.Controls.Toolkit.dll
using System.Windows.Controls.Primitives;
var myElement = myRoot.GetVisualDescendants().OfType<TextBlock>()
.Where(txb => txb.Name == "TextBlockName").FirstOrDefault();
If you are creating a UserControl, any element that you name via x:Name should be available to you as a field in your code-behind.
If you are not creating a UserControl, you can search the visual tree via Linq to VisualTree ...
TextBlock block = LayoutRoot.Descendants<TextBlock>()
.Cast<TextBlock>()
.SingleOrDefault(t => t.Name == "TextBlockName");
hey Masn i was write some code and similiar conditions in my case that all ok.
this is the case (have many listbox and named variables diferenciated by number in final the name Example: listAttachment1,listAttachment2,listAttachment3,..,etc). To best explication show my code:
public void refreshAttachmentList(ListlistOfControlsRequest, int identifier)
{
string valueName = "attachmentsField_"+identifier;
var mylistAttachment = ((FrameworkElement)System.Windows.Application.Current.RootVisual).FindName(valueName);
ListBox listAttachRequest = mylistAttachment as ListBox;
listAttachRequest.ClearValue(ItemsControl.ItemsSourceProperty);
listAttachRequest.ItemsSource = listOfAttachmentsControls;
listAttachRequest.....all properties
}
I use a listview to display data like a data matrix (columns and rows). My problem is : my items are typed : MatrixCellVM.
I tried everything I found on the net to apply a DataTemplate on this items but nothing worked.
Here is the latest technique I'm using
foreach (var col in dataMatrix.Columns)
{
//create the data template
DataTemplate cellLayout = new DataTemplate();
cellLayout.DataType = typeof(MatrixCellVM);
//set up the stack panel
FrameworkElementFactory spFactory = new FrameworkElementFactory(typeof(Grid));
spFactory.Name = "myComboFactory";
//set up value textblock
FrameworkElementFactory cellValue = new FrameworkElementFactory(typeof(TextBlock));
cellValue.SetBinding(TextBlock.TextProperty, new Binding("Value"));
cellValue.SetValue(TextBlock.ToolTipProperty, "Value");
spFactory.AppendChild(cellValue);
//set the visual tree of the data template
cellLayout.VisualTree = spFactory;
gridView.Columns.Add(new GridViewColumn{
Header = col.Name,
DisplayMemberBinding = new Binding(string.Format("[{0}]", count)),
CellTemplate = cellLayout
});
count++;
}
One more thing, when I override ToString() in MatrixCellVM, the value is displayed (but with this technique I add a context menu or give any color to my value).
I solved the problem but have another one.
So what I did is pretty simple. DisplayMemberBinding and CellTemplate can't be put together.
So I deleted the whole c# code creating the datatemplate.
The only thing that remains is :
gridView.Columns.Add(
new GridViewColumn
{
Header = col.Name,
CellTemplate = (DataTemplate)listView.Resources["MatrixCellVMTemplate"]
});
Thus, I added in my xaml code defining the datatemplate.
My new problem is that my rows are arrays of MatrixCellVM (as it is a matrix, I don't have properties and I don't know by advance how many columns I will have).
That was the point of the DisplayMemberBinding = new Binding(string.Format("[{0}]",count)) code in my top post.
How could I reproduce this behavior in my datatemplate (what is the binding in my textblock).
If anything is not clear, let me know.
Thanks
I have a StackPanel called "MainContent".
I can dynamically fill it with UIElements like this:
TextBlock textBlock = new TextBlock();
textBlock.Text = String.Format("This is text");
textBlock.Background = new SolidColorBrush(Colors.Beige);
MainContent.Children.Add(textBlock);
Button button = new Button();
button.Content = "This is a button";
MainContent.Children.Add(button);
But I want to go beyond that and fill it with a XAML/Codebehind pair (e.g. Page or Window):
Type type = this.GetType();
Assembly assembly = type.Assembly;
Window window = (Window)assembly.CreateInstance(String.Format("{0}.{1}", type.Namespace, "Test1"));
MainContent.Children.Add(window);
But the above code complains that I can't add a "Window to a Visual". I can do window.ShowDialog() of course but then it is external to my main window.
I want the Test1 window to be embedded in my application.
How can I do this?
Added: The main question is: how can I get Window (or Page) to act as a UIElement so I can embed them dynamically in StackPanels, etc. Currently looking at XamlLoader, anyone experienced with that?
The easiest way is to have your XAML/code behind inherit from UserControl - and then everything will just work
I don't know if it's possible. But instead of filling the panel with a Window, why not fill it with the root element of the window instead. You'll get all the content and value of the window without the unneeded chrome.
Update: you can grab the root element of a window via the Dependency Property Content
Window w;
object rootElement = w.Content;
Have you tried this?
MainContent.Children.Add(window.Content);