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

Top 5 Contributors of the Month
david stephan
Gaurav Pal
Post New Web Links

Replace EditableTextBox in ComboBox

Posted By:      Posted Date: September 03, 2010    Points: 0   Category :WPF
I would like to replace the inner TextBox of a ComboBox if the ComboBox is set to "IsEditable". I tried something like: <ControlTemplate TargetType="{x:Type controls:myComboBox}"> <ControlTemplate.Triggers> <Trigger Property="IsEditable" Value="true"> <Setter TargetName="PART_EditableTextBox" Property="Template" Value="{StaticResource Editable}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> but I get an error: ".. Cannot find the Trigger target 'PART_EditableTextBox'.  .." What have I done wrong?

View Complete Post

More Related Resource Links

Can I replace the EntityObject as base-class in Entity Designer 3.5 sp1?


I'm using EF3.5sp1 for a project, and I've been working around many of its problems... as such, my entity partial classes have a lot of logic in them for change-tracking and whatnot.  Obviously, I'd like to factor this logic out into a common base class, but of course all my objects must derive from EntityObject.  Is it possible to tell them to derive from some class of my own invention (which would actually likely derive from EntityObject themselves)?

I'd rather avoid editing the EDMX file unless the changes will be safe on entity-model-update, since I'm still making changes to the database schema in this early state of my project.


Also, is there any good workaround for the fact that the change isn't tracked when you change EntityReference.EntityKey?

How to display related tables in one crystal report and how to link this report with combobox?


Hi! I want to display a crystal report in my vb.net application. Suppose I have tables named student details, student marks, student address, etc... Now if I want to display all these details (fields of all tables) in one crystal report (with page breaks if necessary) then how will I achieve it. I will be providing a combo box in my application that contains list of student names. How can I link this combo box with the cystal report to dynamically display report for different student on selected index change of combo box? Help me friends. An example would be appreciable.

C++ at Work: Addin a Combobox Cancel Feature


This month Paul DiLascia codes some Microsoft Office-style dialog box features.

Paul DiLascia

MSDN Magazine August 2006

ActiveX and Visual Basic: Enhance the Display of Long Text Strings in a Combobox or Listbox


The combobox and listbox controls in Visual Basic have no built-in support for displaying text strings that are too long to fit in the visible area of either control. This article describes several techniques to improve the readability of long strings in each control. The first technique uses tooltips to display a combobox or listbox item. The other techniques, which use various Windows APIs, include adding a horizontal scrollbar for a listbox and determining the necessary width of the longest string given the font attributes of the text. The required steps are described for both comboboxes and listboxes.

John Calvert

MSDN Magazine December 2000

Regex.replace [h2] to


I try to replace [h2] to <h2>
I use this coding:

string o = "<h2>test</h2>";
o = Regex.Replace(o, "[h2]", "<h2>");
o = Regex.Replace(o, "[/h2]", "</h2>");


But the result after the first regex is:


So that is not what i want.
After the first 1, he should make:


Whats wrong?

Binding value to combobox or dropdown


How can we bind a value to a combobox or dropdown? What is the property for binding a value? 


Replace text in a word document stored in a Document Library


Hi to all,

im tying to replace some text introduced in a word document stored in a document library.

Exactly i need a web part with a button that change a key in a word template <list> (for example) and replace <list> with a text in another list.


I think that it would works with the Microsoft.Office.Word.Interop; namespace but when i call the function :

wDoc = wordApp.Documents.Open(ref fileName, ref missing,
                                ref readOnly, ref missing, ref missing, ref missing,
                                ref missing, ref missing, ref missing, ref missing,
                                ref missing, ref isVisible, ref missing, ref missing,

Weird "string;#" in combobox


Ok, while I am digging and digging myself into the world that's called Sharepoint I come to the next challenge.


I have two lists Projects List and Project Issues. They both have an id field (which is not the ID field of the record) and a title. I created two calculated fields for both of the tables which combines the title and the number for displaying in other pages.



Projects List:

ProjectID: 2008-001

Project Name: First Project in 2008

Display Name (which is the calculated field): 2008-001 First Project in 2008


The calculated field formula is: =[ProjectID]&" "&[Project Name]

The field returns a string.


I also have a Worksheet list where my workers have to fill in their working hours. In this list I have two lookup fields. O

Combobox and Enter key


I have added a combobox to my page. Listview is updated based on selection from combobox. It is working great except it does not fire when Enter is pressed. User has to click on option from dropdown or has to press tab key to have Listview to populate. I want the user to be able type use arrow key to select option and then press the enter key for event to fire.

Using .net 3.5 and c#


ComboBox text/value selection?


When we select a value from combobox list, we can get it by combobox.selectedvalue.text, however when we enter a new value in combobox, we can get it by combobox.text when submitting a form.  During submission, how will we handle this situation? Either there is a single way of getting value in both situations or we'll have to tackle both situations separately?

Please help me tackling this situation. Thanks

How to bind to DisplayMemberPath in a customercontrol that derived from ComboBox?

Hello, All: I need a customer control which derives from ComboBox. In its resource file I have the style:   <Style TargetType="{x:Type local:MyComboBox}">             <Setter Property="SnapsToDevicePixels" Value="True"></Setter>             <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>             <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>             <Setter Property="ScrollViewer.CanContentScroll" Value="True"/>         <Setter Property="ItemTemplate">                 <Setter.Value>                     <HierarchicalDataTemplate>                     <CheckBox Content="{Binding Path=DisplayMemberPath,Mode=TwoWay,RelativeSource={RelativeSource

combobox with first row blank

Hi  I have combobox whith data biding to another combo box but i have a problem,when I open UI windows already initially  i see value inside combo box but i need in at the start to display blank combo box only after choosing value i need to display it/ thank

WPF ComboBox Loaded Event - Handling Globally

Hello, I am having trouble hooking up to a WPF ComboBox Loaded event when trying to do it globally with EventManager.RegisterClassHandler in the parent control rather than with XAML right on the control.  Here is the code for the ComboBox control: <DataTemplate x:Key="MyUIEditor"> <ComboBox Width='Auto' x:Name="Combo" ItemsSource="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:MyControlWPG}}, Path=MyCollection}" SelectedValue="{Binding Value}" DisplayMemberPath="Name" SelectedValuePath="FullName" Background="Transparent" /> </DataTemplate>   Here is the code for the global event handler:   public partial class MyControlWPG : UserControl public MyControlWPG() { InitializeComponent(); EventManager.RegisterClassHandler(typeof(ComboBox), ComboBox.LoadedEvent, new RoutedEventHandler(Combo_Loaded)); } The event handler gets hit when I declare Loaded = "Combo_Loaded" in the XAML right on the ComboBox control but not when I use the global handler.  Any ideas as to why it doesn't get hit when doing it this way?

Combobox SelectionChanged: Prevent firing for every keystroke?

Is it possible for this event to fire only when the user clicks an item from combobox with the mouse or when they hit enter on it like the old 2.0 combobox worked? I have tried messing aroudn with the new selectionchanged event but I cannot figure it out. I looked on the forums here for help but only found someone returning the even to fire only when items they type are in the combobox. Thanks all help appreciated.GINtech Systems Owner

The replace of web application stress tool

Hi i want  know in 2010 what is the replace of web application stress tool. what is the new tool for testing application , not Microsoft test manager,  with out a tema foundatin server a application like jmeter   thamks

how to get selected value from combobox?

i have combobox which populated with data from sql db now when user select value i want to get selected value in combobox in this code i get the place of the value in sql table but not value himself can anyone help me??   private   void button1_Click(object sender, RoutedEventArgs e) {     int selectedIndex = comboBox9.SelectedIndex;   Object selectedItem = comboBox9.SelectedItem;   MessageBox.Show("Selected Item Text: " + selectedItem.ToString() + "\n" +   "Index: " + selectedIndex.ToString()); } i get showbox  "  slected item text system.data.dataRowView"

Change case using Find & Replace dialog box

Hi, I want to change case of link URLs using Find & Replace dialog box . Is it possible? eg changing http://www.abc.com/S pecial-E dition.aspx, http://www.abc.com/O ther-N ews.aspx to http://www.abc.com/s pecial-e dition.aspx, http://www.abc.com/o ther-n ews.aspx
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