.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Post New Web Links

WPF: Binding Dictionary to DataGrid and making it editable.

Posted By:      Posted Date: November 16, 2010    Points: 0   Category :WPF


Basically, I would like to make  "Property Editor" using Dictionary and DataGrid by storeing "properties" (key&value pairs) into Dictionary and DataGrid to display and edit. 

I was able to successfully bind using below code.

It displays Key&Value pairs fine in the DataGrid but it won't allow me to edit the Value.

It says, "EditItem is not allowed for this view"

How can I do this using DataGrid and Dictionary?

Is there better way to make property editor with FLEXIBLE number of properties?

I emphasized "flexible" because the property entries/definition can frequently change and I thought Dictionary was perfect for this.

Thanks a lot!


 <DataGrid Name="PropertyGrid"
      				<DataGridTextColumn Header="Name"
 Binding="{Binding Path=Key}"
      				<DataGridTextColumn Header="Valu

View Complete Post

More Related Resource Links

DataGrid editable

Basically the idea is to have the excel spreadsheet effect. How do we make a datagrid editable?

How to have all rows of a datagrid editable (ASP.NET 1.1)

HelloI have a datagrid and I would like to know if there is a way to make all rows editable, currently now I have the user selecting a checkbox on the leftmost column that makes the row editable (using the EditItemIndex property). Thanks, 

fully editable datagrid in asp.net

I need to create 50*4 matrix of text boxes to accept values from user in an asp.net page. its very difficult to mannualy add each text box and write code to handle them.Please suggest me some thing. can it be done using fully editable datagrid, please suggest me some linksthanks

Editable Header for DataGrid

Hi I want to have  wpf datagrid header   editable.   How can i add textblock or input field in datagrid header  

Data Binding a DataGrid to a list fetch the same data multiple times

Hi, I'm using DataGrid to show data through data binding. My data are provided in a list. The setup I have is the following: DataGrid "binded" to the default view of my list that implement IList<T> and IList interfaces (MyList<T> : IList<T>, IList, INotifyCollectionChanged)             CollectionViewSource.GetDefaultView(_myList);             // Set the data context             DataContext = view; T: is here my 'business object' that hold the data, called 'MyRow'. Then the columns of the DataGrid are bound to public properties of 'MyRow' object. MyRow class has a public property of type 'object' (public object data[int index]) and first column of datagrid is bound to myRow.data[0], second column is bound to myRow.data[1] and so on.   When the datagrid is displayed, databinding kick in and my data are showed in the control. The issue I'm having is that data fetching is very repetitive even for the same rows. For example for a datagrid with 20 visible rows, the first row is fetched multiple times even if the datagrid is not resized or moved. I put break point inside my list (MyList<T> into This[T] property (public T this[int index]) and i got multiple hits into the property for the same index. Fetc

TwoWay Binding Datagrid To WCF Service?

Hello, i tried to bind a DataGrid in TwoWay Mode to a WCF Service. The Data get displayed but changes in DataGrid dont affect the Database, from which the WCF Service is getting the data.   I hope someone can help me... Thank you.     My Szenario: I have a WCF Service which offers exactly one Function which return a custom class. The custom class inherits from INotifyPropertyChanged and has only one DataMember, an ObservableList with my DB Entitys. //Service.svc.cs static testdatenEntities _context = null; private static testdatenEntities Get_context() { if (_context == null) { _context = new testdatenEntities(); } return _context; } public customData GetDataFromADO() { var _context = Get_context(); var result = (from lief in _context.LIEF_INFO.AsQueryable() orderby lief.LNR select lief).Skip(50).Take(50); ObservableCollection<LIEF_INFO> _ocol = new ObservableCollection<LIEF_INFO>(result); customData customdata = new customData() { List = _ocol }; return customdata; } //IService.cs [DataContract] public class customData : INotifyPropertyChanged { ObservableCollection<LIEF_INFO> _ocol = new ObservableCollection<LIEF_INFO>(); [DataMember] public ObservableCollection<LIEF_INFO> List {

Binding DataGrid to empty DataTable

Hi, I'm very much new to WPF and am finding it a bit tricky to find my way in the mass of (not always great) documentation. Right now I'm struggling to get the grid to display it's UI when bound to an empty datatable. In my XAML: <DataGrid Name="grid" ItemsSource="{Binding}" />  In my code-behind (MainWindow constructor, following InitializeComponent): var dt = new DataTable(); dt.Columns.Add("col1"); dt.Columns.Add("col2"); //var r = dt.Rows.Add("toto", "tata"); grid.DataContext = dt; If I comment out the line that adds a row to the table, all is well -- the grid generates columns and displays UI. But if the table is empty, the grid renders a thin horizontal white rectangle with no column names and it doesn't seem possible to interact with this at all. As it happens, I want the grid to be empty by default, so I need to somehow get the grid to play along. If anyone knows why this happens and what to do to solve it, I'd much appreciate the help!

Problem with Binding Dictionary to Combo Box Control

Hi All,I am trying to figure out how to bind <Key,Value> pair to Combo Box Control in WPF. By now i have found that the following code do not hold Keys in the comboBox:[vb Code]Dim MyDictionary as Dictionary(OF String,String)MyDictionary.Add("Key1","Value1")MyDictionary.Add("Key2","Value2") ..etc.'***** MyComboBox is ComboBox control ******MyComboBox.ItemSource =  MyDictionary.Values[xmal]<xmls:ComboBox x:Name="MyComboBox" />Doing the above process does not fulfill my purpose of capturing keys. Example if i want to get the "Key" for "selectedItem" then i cannot since i have not binded it.Can anyone suggest me a solution? If anyone can provide me with a xmal and code behind that would be great!!!THanks in Advance.

Binding DataGrid RowDetailTemplate Using MVVM

In this post I will show you how you can bind the RowDetailTemplate of the data grid using the MVVM pattern. Below are the image of the sample code here you can see the default page in Image 1 and when user click on any of the record then detail of the record is shown in the RowDetailTemplate which also consist of the data grid control which you can see in the Image 2.

binding dictionary with strongly typed view

hey guys ,i m beginner in asp.net mvc , i have strongly typed view and i m passing my dictionary in view as :Dictionary<Guid,IYummyWebAppMVC.Models.Restaurant.Menu>>" %> Dictionary<Guid , MyApp.Models.Res.Menu>  how do i access this in html ?how do i iterate thru it and get value of both the items ?

Click.CommandParameter null when binding on Button inside DataGrid DataGridTemplateColumn

I am having trouble getting a Click.CommandParameter to pass through with a bound Click.Command. I have a DataGrid with a DataGridTemplateColumn that contains a couple of Buttons. Using a suggestion found on the forum (http://social.msdn.microsoft.com/Forums/en/wpf/thread/541024a9-3d7e-4c6a-b88e-9a7eb7ee83a9), I was able to get the Click.Command to bind to the right command, but when arriving in the corresponding method in my ViewModel, the parameter is null.  Here is my xaml for my DataGridTemplateColumn <data:DataGridTemplateColumn Header="Case">  <data:DataGridTemplateColumn.CellTemplate>   <DataTemplate >    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">     <Button Content="Open" Margin="6,0" command:Click.Command="{Binding RelativeSource={RelativeSource AncestorType={x:Type data:DataGrid}}, Path=DataContext.OpenCaseCommand}" CommandParameter="{Binding}"  />     <Path Data="M1,1 L1,2" Stroke="#FFCCCCCC"/>     <Button Content="Rename" />    </StackPanel>   </DataTemplate>  </data:DataGridTemplateColumn.CellTemplate> </data:DataGridTemplateColumn> I used Snoop to see what was going on. Everything

Binding a computed value to datagrid column

Hi, I have a WPF Datagrid with tree colums (A, B,C) which are bound to an Observable collection. The value of C is C=A+B. The value of A and B are updated via an event that I have subscribed to ( a realtime data feed). What is the best way to update the value of C each and every time A or B get chaged ? I'm new to WPF and should I use a converter to achive this ? Thanks V

Binding ISSUE??? How To Bind Dictionary of Dictionary


Hi All I have Problem in binding 

i have object of Dictionary of Dictionary

like this 

ObservableSortedDictionary<string,Dictionary<string,string>>  coll = new ObservableSortedDictionary<string,Dictionary<string,string>>();

Dictionary<string,string> InnerData = new Dictionationry<string,string>():

innderData.add ( "Item1","Data1");

innderData.add ( "Item2","Data2");


i want to bind the inner dictionary (Data) into a GRIDVIEW 

can any one help me to Bind This Object??

ASAP please

Adding new rows to Datagrid with a Combobox column generate "two-way binding requires path or xpath"



    I have datagrid control with a template combobox column like:

 <DataGridTemplateColumn Header="Fault code" Width="75">
                                    <TextBlock Text="{Binding FaultCode1}" />

Dynamically Assign Datagrid Column Binding from XAML


I am trying to build a generic user control that will serve as a quick list maintenance screen.

I have a base ViewModel that has two string properties IDColumnName and DisplayColumnName and then a collection of objects to be edited.  Inherited view models will be created for each object type that needs to be maintained.  The usercontrols datacontext is set to the viewmodel.

What I want to do is have the datagrid, who's itemssource is bound to the collection of objects in the viewmodel, have one column and have that one column bound to the property specified in the DisplayColumnName property of the viewmodel, and I'd like to do it all in XAML.  I've got the datagrids rowdetailstemplate being dynamically determined based on the object type but am struggling with dynamically setting which property the one column displays.

WPF OneWay ItemsSource Binding to a static class's dictionary?



I have a global Static class which implements a dictionary of languages:

namespace Tools.DataAccess
  static public class Planner
    static public class Dictionaries
      static public Dictionary<UInt32, string> Languages { get; }

I am trying to bind a ComboBox's ItemSource to the static dictionary called "Languages". It works very well through code-behind at the moment:

ui_languages_cmo.ItemsSource = Tools.DataAccess.Planner.Dictionaries.Languages;

However I cannot bind it through XAML. The dictionary actually resides in a separate namespace (Tools) than my UserControl (myApp). Here's roughly what I'm trying to do:

<UserControl x:Class
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend