Wpf - Binding To Class Item
Sep 30, 2011This seems like it should be really basic but I can't seemto get it working. I have a class file called XMLSource as follows:
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C# - Set The Binding Of A Item Template Item To User Property?
Oct 21, 2010I have a simple user control, which is essentially just an AutoCompleteBox with some custom logic.
For a specific instance (a collection of Persons), I want it to look like this:
<sdk:AutoCompleteBox Name="myACB" ItemsSource="{Binding People}" FilterMode="StartsWith" MinimumPrefixLength="2" ValueMemberBinding={Binding LastName}>
[Code].....
I want the DisplayMember property to be the property name to display for whatever kind of custom collection (persons, cars, etc) I have bound to the AutoCompleteBox.
I don't think I can modify the datatemplate programmatically. Is there a way I can do this with binding (relative source)?
VS 2010 : Create A New Class And Have Each List Item Of That Class Such As 'btnID', 'btnText'?
Apr 27, 2011I want to read a number of items from a file and then associate each of those items with a new button at run-time, so that when the user clicks one of the buttons I can display some information about that item.Can I use a LIST to manage these buttons and items? Can I create a new class and have each list item of that class, such as 'btnID', 'btnText', etc... ?
View 2 RepliesVS 2005 Binding Navigator Position Item V Picture Box?
Mar 26, 2012I am trying to get a picture box to update with a new picture when I type in a number in the navigator position item box and hit enter. I have tried various methods, but I can't seem to get a combination that works in this way. Could anyone tell me if what I am trying to achieve is possible, and if so
This is the latest variation I tried (yeah, I know...) :
Private Sub BindingNavigatorPositionItem_KeyUp(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorPositionItem.ModifiedChanged
Dim Picture As String
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** note that the <fileLocn> is just truncated for the purposes of this post - it does actually have proper code, so that isn't the issue!
[2008] Binding Source AddNew And Current Item?
Feb 10, 2009I'm doing an ADDNEW on a BINDING SOURCE. After I add the row and endedit and update and all - the current item is not changed to that new row.
It remains at the first row.
Dim drv As DataRowView = DirectCast(vendorfileBS.AddNew(), DataRowView)
drv(0) = vendorfiletype
drv(1) = vendorfilename
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.net - WP7 Custom Class UI Binding?
Feb 4, 2011I have a map with a MapItemsControl in my WP7 app that contains pushpins bound to items in a collection of custom classes. The pushpins are bound to properties of the item in the collection via a DataTemplate.When an item is added to or removed from the collection, all pins display correctly, with properties as per bindings, but when just an items' properties are modified, the UI does not update. The bindings just seem to get values from the source item upon loading, but I'd like them to keep the UI elements updated when the source collection items' properties are updated.To illustrate, I'll create a similar example:
Heres a custom class:
Public Class Box
Property CurrentColor As Color
Property Location As GeoCoordinate
End Class
[code]....
Whenever I add or remove items from TempBoxes, the pins all render as they should (e.g. if I specify a color in the collection item, the pin shows the color).Tapping on the item triggers the BoxTouched sub, which causes the item's color to change in the collection, but the UI doesn't change (pin color stays the same).To get the UI to update the color, I have to get it to render the pins again, by adding something like this to BoxTouched:
BoxControl.ItemsSource = Nothing
BoxControl.ItemsSource = TempBoxes
Late Binding - Declaring A String Variable And Assigning The Item Property?
Nov 27, 2011I have a problem involving late binding, and I absolutely cannot for the life of me figure out how to fix it. I have spent hours researching the problem to no avail, so I am turning to stackoverflow as a last resort.The problem is pretty much this: I am creating a grocery list application. I have a class named Item which stores the name, price, quantity, and description of an item on the grocery list. I have a module named ListCollection which defines a Collection of Item objects. I have created an Edit form which will automatically display the currently selected ListCollection item properties, but whenever I attempt to fill the text boxes, it tells me that Option Strict disallows late binding. I COULD take the easy route and disable Option Strict, but I'd prefer to figure out what the problem is so I know for future reference.I shall paste pertinent code here. (Late binding error is in EditItem.vb)
[code]...
I have tried declaring a String variable and assigning the Item property to that, and I have also tried grabbing the value directly from the List item (not using the Get function), and neither of these made a difference.
Saving Updates To Data Table Using Binding Navigator Save Item Button?
Jun 7, 2012I am trying to understand how the binding navigator buttons are actually working.
I started by creating a table called "Students" in MS Access,
I then "dragged and dropped" that table onto my VB form after importing the data connection.
When I debug, I click the add new (the yellow plus "+") then I type info into my fields (700_Number, First_Name, MI, Last_Name). (700_Number=Primary Key)
After I am finished typing into the four text boxes, I click save. If I end my program then start the debugger again, the record is still there...it goes away only if I change some of the code anywhere in my program.
Also, I am trying to use the record I just put into my database for another part of my program. I use this line of code:
MsgBox(frmAddStudent.DrByrdsTaskListAppDBDataSet.Tables("Students").Rows(0))
This is just to see if what I am trying to put into my database is actually making it there. Every time I run, this message box turns up blank.
C# - Binding Class Object To Listview In Wpf?
Apr 30, 2012I have created a user control in wpf which consists of a textbox and a listview. Now, I want to bind a class object to the list view from the form where I will use this control. So, basically I want to dynamically set the binding for the listview.
View 1 RepliesC# - Binding Controls To Class Properties?
Mar 20, 2009I have yet to find a "nice" way to do two way databinding in .Net. The one thing I don't like for example in the present asp.net two way databinding is doing the binding in the aspx page is no compile time checking, ie:
<asp:TextBox ID="TitleTextBox"
runat="server" Text='<%# Bind("Title_oops_spelled_wrong") %>'>
I would like to have something like this:
Class Binder
Public Sub BindControl(ctl As Control, objectProperty As ???????)
'// Add ctl and objectProperty to a collection
End Sub
What I don't know is possible is, how to receive the objectProperty in my example; I want to receive a reference (ie: a pointer) to the property, so later, via this reference, I can either read from or write to the property.
Can this somehow be done with delegates perhaps??
UPDATE: Note, I want to add the control reference to a binding collection, this collection would then be used for binding and unbinding.
Customizing Binding Navigator Class
Apr 17, 2010I am trying to customize the default binding navigator as i inherit it to my own class and add some buttons to it.every thing gos fine and great as i want it, but the problem is when i change any thing in the AddStandardItems() method class dos not reflect to the existing form which has the same class, i have to remove it from the form and put it again to reflect the changes.This is not good solution, i have more than 30 forms using the same Binding navigator class and it is not possible to remove it form all those forms and put it again.[code]
View 10 RepliesXaml Data Binding To My Class?
Sep 9, 2011I have the below xaml that I am trying to bind to my class. I am having trouble getting the values to show up.
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C# - Create A Collection Of Variable Binding In A Class?
Apr 15, 2010I'm trying to create a collection of variable binding in a class.It is intended to look something like this:
Dim x as integer, s as string
Dim c as new VBindClass
x = 1
s = "Hello"
[code]....
Is there some function that allow us to retrieve a unique ID for a given variable and also get/set based on variable?
Update:At last, I've managed to found the answer. Here's the code:
Dim gh As Runtime.InteropServices.GCHandle = Runtime.InteropServices.GCHandle.Alloc(obj)
Return Runtime.InteropServices.GCHandle.ToIntPtr(gh).ToInt64
Two-way WPF Binding To Properties Of A Class Inside Of An ObservableCollection
Nov 17, 2011I've searched as best as I can, and I can't find an answer to this specific problem that I have... WPF binding seems to be great and all, but I end up banging my head against the wall more often than not.
Okay, I have a singleton class which is ultimately the one that I'm binding to:
Imports System.ComponentModel
Imports System.Collections.ObjectModel
Public Class AmandaSeyfried
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If I throw some break points on the Getter and Setters of the CountryTranslation class, I can monitor when they're being changed (via the datagrid, so binding is working), but try as I might I can't figure out how to raise an event based upon that back in the main class to subsequently update the datastore to show the changes.
VS 2008 Binding Collection Class To Listbox?
Oct 17, 2011using a Binding Source to Bind my Collection to a ListBox? I can bind the class to the binding source, but im not sure how to let it know what type of list it is, or how to display the correct item.
I'm trying to get the listbox to display the ItemNames. Here's my class and collection class.
<System.Serializable()> Public Class SurveyItem
Private itemNm As String
Property ItemName() As String
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Wpf - Property Notification When Binding To Class Not Properties?
Jun 13, 2011I have a window that contains different functional areas of an account. The details, roles, type, contracts The window's DataContext is set to the 'AccountViewModel'. Inside the AccountViewModel, there are properties one of them being 'Account' which contains the details. I need for the user to be able to update these details. How can I notifiy the properties to call my Update() code when they are changed?
Here is what I have
<TextBox x:Name="txtAccountNumber" Grid.Row="0" Grid.Column="1" Text="{Binding Path=Account.AccountNumber, UpdateSourceTrigger=LostFocus}" />
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Directly Binding A BitmapImage Created Inside A Class Bound To A ListBox In WPF?
Aug 31, 2011I am adding object directly to a ListBox, and inside this class, I've got a BitmapImage object.I'm using an ItemTemplate :
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
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Reciept Printing - Form Which Consist - Item Code , Item Name , Item Price , Quantity Of Item
May 25, 2012Regarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.
Imports System.Data.OleDb
Public Class Form5
Dim con As New OleDbConnection
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Find Item In List Of Class?
Mar 9, 2011I have class called GroupSelect and made a collection List(Of GroupSelect)().Now I need find to RowNo = 4 in List(Of GroupSelect)() and get GroupSelect object.[code]
View 2 RepliesVS 2008 Binding Multiple Binding Source To One Binding Source Navigator?
Oct 29, 2011is there any way that i could link/bind multiple binding source to only one binding source navigator?
View 4 RepliesSorting Items In A Custom Class According To Item Values?
Oct 8, 2009I have the following in my main form
Class MainWindow
Public TableDetails As New List(Of TableDetailsContainer(Of TableXDetails))
Public Sub ArrangeByID()
'''STUCK HERE''''
[code].....
What I basically want to achieve is to sort TableDetails(i) items by their "ID", but I have absolutely no idea how to go about it. Could anyone please give me pointers?Also, I actually want to move the columns within TableDetails(i) around, manually. But I'm not too sure how to do that.
Subtract A Listbox Item From A Class Level Variable?
Mar 5, 2012Im creating a registration application where i have a listbox that displays a Course Name column and a Credit Hours column. I also have a textbox that keeps a running total of the credit hours of each course added to the list. When i remove a specific item from the list, i also want to subtract the number of the selected item from the running total in the text box. Essentially i just want to subtract a certain part of a list item from a variable i have.
View 1 Repliesbinding Navigators / Datagrid View / Binding Source Are All Sql Database Parts
Oct 18, 2010binding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
View 2 RepliesBinding Master Table To TextBox And DateTimePicker And Binding Details Tables To Datagridview Then Add / Update / Delete In Both
Jul 2, 2011Binding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
View 8 RepliesCreate A Link To An SQL Table But The LINQ To SQL Class Is Missing In Add New Item Menu?
Oct 7, 2009I recently downloaded VB2008 express. Iam trying to create a link to an SQL table, but the LINQ to SQL class is missing in my add new item menu. is there another way to grab data from a database without using the LINQ to SQL?
View 1 RepliesClass -program Where Enter The Description, Price, And Quantity Of An Item, Then Click On The Add Button
Aug 13, 2009I have to create a program where you enter the description, price, and quantity of an item, then click on the Add button. It will then put the description, price, quantity, and total for that line (including tax) in a listbox. The tax is determined by what you put in a text box labeled tax:. When you press Submit Order, it should show a grand total in a text box called Grand Total. It should have a class that is called Items that has a function called GetTotalAmount() that figures out the total including tax. I have started it, but am having a tough time with how to get the subtotals into the text box, then also show the amount including the tax PLUS then do the grand total.
Heres what I have so far:
CODE:
Possible To Make List Box Item Height For Item Depending On Amount Of Lines That Item Contains?
Jan 1, 2012I have a list box on the form which functions as a copy/paste. When you copy something, it is automatically added to the list box as a "clipboard helper". Here is the problem,however: if the text is more than 1 line, the list box does not show all the text.It ends up looking messy.So getting back to my question, is it possible to make the list box item height for an item depending on the amount of lines that item contains?This is a one line sentence in the list box and should take up one line.This is a multi line sentence in the list box and should take up two lines for item height.
View 11 RepliesWhen Users Select Each Item Another Item Will Be Added To Second Listbox But It Is The First Selected Item
Jul 5, 2010In my application I have a listbox and SelectionMode should be MultiSimple because users need to see which items they selected. In another tab we have another listbox this one should show all the selection users had done in first tab. Private Sub
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Binding Of DatagridviewComboboxColumn When Using Object Binding
May 29, 2010I use objectbinding to display client data in a datagridview. The datagridview also contains a counry-column allowing the user to choose the country of the client.Unfortunately, databinding of comboboxcolumn does not seem to work if an own business class is used. Using a simple collection instead works well.Copy the sample code into a new windows project and the programm runs fine. Then comment and uncomment the two lines with "XXX" and the code will fail. Why and does anybody know how to make the sample code work by using the business object class(variable named "newClientListVariable" in the sample)? [code]
View 3 RepliesEarly Binding Late Binding
Aug 19, 2009I started programming in VBA, then graduated to VB6, and I am now using VB.NET 2008 Express.I have read, in the various posts, that I should keep Option Explicit and Option Strict both on, in order that I use correct VB.NET code and not VB6.I am trying to do that but am totally confused with the results of one of my programmes that was running perfectly with Option Strict off, but now advises:Option Strict On disallows late binding. To me it appears that I am using early binding, but to be honest I am not clear on the binding situation. I have checked through a number of google items, and a number of this Forum's items without seeing the light.[code]
View 8 Replies