WPF Datagrid DataGridComboBoxColumn Autogenerate At Runtime

Jul 9, 2011

I have a datagrid in my vb.net 4.0 wpf project. I have seen many examples in XAML on how to bind a DataGridComboBoxColumn however I need to do this in code as I have auto-generating columns. I switch the datagridbinding source to multiple data sets.Inside some of these custom classes are a couple lists. I can get text and checkboxes to auto-generate correctly. When it comes across my array (I have tried many different kinds) I just see a textboxcolumn with the words (Collection) in it.For instance - One screen I am grabbing system information on WMI calls. One of the calls returns all IP addresses on the server (We can have up to 8 IP addresses) I do not want a column per IP address. I would like to include a list of those into the datagrid so you can drop down and see them.[code]

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.net - WPF Datagrid DataGridComboBoxColumn Autogenerate At Runtime?

Jun 28, 2010

I have a datagrid in my vb.net 4.0 wpf project. I have seen many examples in XAML on how to bind a DataGridComboBoxColumn however I need to do this in code as I have auto-generating columns. I switch the datagridbinding source to multiple data sets. Inside some of these custom classes are a couple lists. I can get text and checkboxes to auto-generate correctly. When it comes across my array (I have tried many different kinds) I just see a textboxcolumn with the words (Collection) in it.

For instance - One screen I am grabbing system information on WMI calls. One of the calls returns all IP addresses on the server (We can have up to 8 IP addresses) I do not want a column per IP address. I would like to include a list of those into the datagrid so you can drop down and see them.

Sample Code

Imports System.Collections.ObjectModel
Class MainWindow
Dim ServerInfoArray As ObservableCollection(Of ServerInfo) = New ObservableCollection(Of ServerInfo)

[code]....

WPF 4.0 DatagridComboBoxColumn Binding At Runtime?

Jul 14, 2011

I had a similar question for DatagridComboboxColumn but that shown me how to use the .itemsource to bind to an array outside of the datagrid. I am having a problem trying to bind to the collection that the datagrid is bound to at runtime.I have included a working test program for how I am approaching this.

Class MainWindow
Dim ServerInfoArray As List(Of ServerInfo) = New List(Of ServerInfo)
Private Sub GetInfo(ByVal list As List(Of String))

[code]....

I can get all Strings and Boolean to bind.I do not know how I can bind this DataGridComboBoxColumn to the list of attached on the property. I cannot use XAML as I need to do this at runtime.

Wpf - Binding DataGridComboBoxColumn In Datagrid?

Dec 29, 2009

I am novice in WPF. I have a wpftoolkit datagrid where i am using a combo box as datagridcombox column. I am using a observable collection of Codes for binding the combo box. Below is the collection and its class...

#Region "Class & Coll"
Public Class CodesColl
Inherits ObservableCollection(Of Codes)

[Code]....

Unable to display the codes in dropdown. Somehow i manged to do so but it disappears after loosing focus from the combobox. Unable to retrive the description on its selection change as , i am unable to find the event too.

Autogenerate/compile Code On-the-fly At Runtime Based Upon Values (like Key/value Pairs) Parsed Out Of A Configuration File?

Jan 2, 2011

I have a set of classes that mimics enums (see my other questions for specific details/examples). For 90% of my project, I can compile everything in at design time. But the remaining 10% is going to need to be editable w/o re-compiling the project in VS 2010. This remaining 10% will be based on a templated version of my Enums class, but will generate code at runtime, based upon data values sourced in from external configuration files.what my Enums class looks like. The templated fields, per that question, will be the MaxEnums Int32, Names String() array, and Values array, plus each shared implementation of the Enums sub-class (which themselves, represent the Enums that I use elsewhere in my code).I'd like to parse values from a simple text file (INI-style) of key/value pairs:

[Section1]
Enum1=enum_one
Enum2=enum_two
Enum3=enum_three

So that the following code would be generated (and compiled) at runtime (comments/supporting code stripped to reduce question size):

Friend Shared ReadOnly MaxEnums As Int32 = 3
Private Shared ReadOnly _Names As String() = New String() _
{"enum_one", "enum_two", "enum_three"}

[code]....

I'm certain this would need to be generated in MSIL code, and I know from reading that the two components to look at are CodeDom and Reflection.Emit, but I was wondering if anyone had working examples (or pointers to working examples) versus really long articles. I'm a hands-on learner, so I have to have example code to play with.

How To AutoGenerate Empid With String

Oct 4, 2010

I am using vb.net2005 and ms sql server2005. I want source code for autogenerate the empid in my table. For example' sb1001'.

Generate A TimeTable For School Autogenerate?

Dec 29, 2010

I want to generate a TimeTable for School autogenerate.how i can generate it with Any algorithm? and which algorithm can i use for it?is any Prepare Algorithm is available for generate it?

Class Members Autogenerate The The Corresponding Properties?

Sep 19, 2011

I have a Data class whichs hold 70 class members to save me a hole lot time and effort not having to type all the properties for hand I'm wondering if there is a simple tool i VS2010 that I can use to auotgenerat the "property stubbs"

[Code]...

[2005] DataGridComboboxColumn?

Feb 5, 2009

i already add a datagridview combo. now what im asking is how can i make it the same as the DropDownStype which is DropDown and not just like a DropDownList?

Added A Datagrid At Runtime On A Form?

Mar 21, 2009

1. i added a datagrid at runtime on a form. i want to bind a datasource to the datagrid in a button's click event handler, but the datagrid doesn't seem to be visible anywhere else outside the form load event where it is declared.how can i find the datagrid control?

2. and another beginner question.. how to i declare a string that spans multipe lines? i tried with the + operator like in c#, but it doesn't work.

Asp.net - DataGrid Control Enable In DIV Runtime?

Feb 14, 2010

I have 2 button in ASP.net, when i pressed button1 my div innerhtml changed to some value. and when I press the button2 my datagrid will display in the same div.

how can i display the datagrid inside the div at runtime.

Adding Or Deleting Datagrid Columns At Runtime?

May 15, 2011

I want to allow the user to select which table they want to be displayed in the datagrid by selecting the table name from a comboBox - this bit I have managed but I want to limit the number of columns displayed. Each of my tables have the same fields (it is for a plant database, there is a table for each type of plant tree, shrub etc) so I know the column headings but

Selection Changed Event In DataGridComboBoxColumn?

Mar 31, 2012

I have a Data grid with DatagridComboBoxColumn , and i want to Fire Event SelectionChanged when user Select any thing From the ComboBox , Do Some operations

Wpf - Bind A DataGridComboBoxColumn To EntityFramework Using MVVM?

Feb 16, 2012

I'm trying to get a DataGridComboBoxColumn working with my ViewModel. Everything appears to work correctly but when I change the value of the combo box, the entity isn't changed. The datacontext of the window has these properties:

[Code]...

Transfer Data In Datagrid To Excel In Runtime In Program?

Dec 29, 2009

I want to transfer the data in datagrid to excel in runtime in vb.net

DataGridComboBoxColumn Setting And Retrieving Combobox Row With Access Datasource?

Jan 3, 2010

I have a datagridview that is populated using an oledbconnection:

Private Sub FileSpecs_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim cn As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & My.Settings.DBLocation & ";")Dim cmd As OleDbCommand = New OleDbCommand("SELECT specFieldno AS [Field No],specFieldName AS [Field Name], specFieldType FROM fileSpecs WHERE ClientNo='" & ClientSetup.clientNo.Text & "' AND direction=" & ClientSetup.fileDir, cn)

[Code]...

The problem I now face is that the 'index' value of the combobox item for each row is in the field specFieldType which is populated into the datagrid.I need to be able to set the value of the ComboBox for each row when the form is opened, and also be able to save the index value of each row selection if any changes are made/saved.

VS 2008 Use Lookup Tables To Display Names Instead Of ID's In A DataGridView Using A DataGridComboBoxColumn

Jul 17, 2009

I've been trying to use lookup tables to display names instead of ID's in a DataGridView using a DataGridComboBoxColumn and have even copied the example shown in the Forms over Data videos produced by Microsoft but still get the following error message:

[Code]...

View 18 Replies

Adding Dropdown List At Runtime And Access Control And Events At Runtime?

Dec 20, 2010

I have created multiple dropdown list at runtime and populated with data. I also have added an eventhandler to determine the selected value of the drop down list.

The code is as follows :
Dim tbl As New Table()
tbl.EnableViewState = "true"

[code].....

Runtime Error: This Application Has Requested The Runtime To Terminate In An Unusual Way

Aug 6, 2007

I have a Visual Basic 2005 program which runs fine if I execute the built Executable. However if I start the application in VS2005 debugger it gives a weird error

[Code]...

Filter Records In Datagrid View And Show The Selected Record In The Datagrid?

Oct 16, 2011

I have a datagridview with transaction bindingsource I want the datagrid to show the sorted rows only not all the records when i enter a value into a textbox and click button sort.

DB/Reporting :: Open An Access Query In A Datagrid View And Then Be Able To Make Changes To The Datagrid And Then Save It Back To The Database?

Apr 15, 2008

What I am trying to do basically is open an access query in a datagrid view and then be able to make changes to the datagrid and then save it back to the database.When I try to save:

Me.BindingSource.EndEdit()
Me.TableAdapter.Update(DataSet)

It says that update is not a member of the tableadapter... Why is that?

Datagrid Item - Searches The Selected Year Or Month In A Datagrid?

Dec 13, 2009

now i use acces as datasource to view the agenda in a datagrid and a combo box to select a year or month so i can find the selected month or year in the datagrid .how do i program it so that it searches the selected year or month in a datagrid

.net - Datagrid Update Checkbox IsChecked On DataGrid.Refresh()?

Mar 20, 2012

I have a datagrid who's ItemsSource is a strongly typed IEnumerable object In this datagrid, I have a checkbox column, a price column, a part name column, and a 'total selling for' column. On checking the checkbox I need to update the total selling for column with the value in the price column. This part I have working, however, how can I get the checkbox to remain checked when this happens?

Private Sub UpdateSellFor(sender As System.Object, e As System.Windows.RoutedEventArgs)
Dim _CB As CheckBox = DirectCast(sender, CheckBox)
Dim _ID As Integer = _CB.Tag
Dim _PP = DirectCast(DG_PartsToSelect.CurrentItem, PartTyping).PartPrice

[code]....

Datagrid Expansion - Datagrid In Form - Retrieve Data From My Sql

Jan 22, 2009

I placed a datagrid in my form which l retrive data from my sql. i am using oledb connection. if i run the form i can retrive the data but i am not getting the data in the grid at first ,there is a "+" sign, i have to clik that then it shows the table name and after clicking the table name i can view the data displays in the grid..

Over Datagrid Erasing Entries And General Datagrid Access

May 9, 2009

I have a datagrid which I am using LINQ to fill, I then add some custom columns and fill them in programmatically - if the users clicks on the column header to re-sort, all the data in the added columns disappears. I am obviously missing something very basic here but can't seem to see the forest for the trees. I also have a couple of other questions about how I am doing things:

[Code]...

Read XML Into Datagrid But Get Error Writing From Datagrid To XML File?

Oct 16, 2011

I am trying to create an xml editor that read and write xml. my code reads the xml with no problem and allows me to create new rows but when I try to "write" it over I get the following error: "Token StartElement in state Epilog would result in an invalid XML document"

here is my xml:
<?xml version="1.0" standalone="yes"?>
<MacroList identifier="test">

[code].....

View 11 Replies

Write The Contents From A Datagrid To A File And Back Into The Datagrid Again Later?

Aug 24, 2011

I decided to rewrite my project. Hit another snag. How do I write the contents from a datagrid to a file and back into the datagrid again later? (Actually, I've done the writing ok - but for the life of me can't get the data back into a blank datagrid.

Here's what I done so far:

Imports System
Imports System.IO
Imports System.Text

[Code]....

Runtime - Error "microsoft Common Languages Runtime Version 4.0.30319.0"

Jul 29, 2010

Soemone recently downloaded my software and they got this error: microsoft common languages runtime version 4.0.30319.0 how do i fix this

Cursor From One Datagrid To Another Datagrid With Have The Same Number Rows?

Jul 29, 2010

how to do cursor moving from one grid it effect to another grid.example Grid A and Grid B have the same number of rows. when I click current row on data grid A, the selected row on data Grid B also follow data grid A..

Datagrid Checkbox - Print Row That Are Not Checked In Datagrid?

Mar 2, 2011

I am printing a files that are shown in datagrid.. But I want to choose a file that I don't want to print by checking the checkbox that I added in datagrid..

I have here the code for printing.. Anyone can edit my code that will print those file that is not checked.

Code:

Try
openMySQL()
Dim sql = "DROP TABLE IF EXISTS dummydisconnectionorder"

[Code].....

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