BindingSource To List Data Binding?
Sep 14, 2011
I have a DataRepeater that needs to display individual items from a List (Of T). The missing link between them is a BindingSource component.Everything works fine, i.e., the DataRepeater displays list items correctly, and I can add and delete items, even change using the TextBoxes on the DataRepeater.
The problem is that when I change the value of an item in the code, it doesn't get reflected on the DataRepeater. Only when I click a button on the form which executes this code:myBindingSource.ResetBindings(False)
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Jan 19, 2009
I'm following advice to load data to a DataTable, binding to a BindingSource then a DataGridView. But some exzamples I've found use a DataAdapter, not a DataTable. [code]
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Nov 14, 2011
I use the data binding mode to fill data into a list box, that is just fill all of the data in the table. if I want to group one of the table column and only display it in the listbox, how can I get this done? I know how to add a getData query to my table adapter, but how can I bind that new datatable to the list box at runtime?? cuz I need to put the data binding mode information in before I run the application and in the binding mode is no way to choose that getData query.
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Jan 11, 2010
VB 2008 .NET 3.5. I have a custom "Shipment" object that contains a list of "ShippingRate" objects. This list of "ShippingRates" is accessible through a property "Shipment.PossibleShippingRates." That property simply returns a copy of the list of "ShippingRate" for that particular Shipment.
My UI layer receives a list of "Shipment" objects from the BLL. This list is databound to a datagridview, and shows details relevant to the Shipment such as Shipping Address, etc.
I want to bind the "Shipment.PossibleShippingRates" property to a combobox, such that when the user changes the grid row, the combobox reflects the "PossibleShippingRates" for that "Shipment."
In addition, I need a way to store the "ShippingRate" they selected from the combobox for later use.
I have tried a few ideas, but none of them work properly.
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Sep 21, 2009
i have an application integrating the an API (autotask web services). I get the data by using a XML query opposed to a SQL query. I'm trying to figure out how to fill a dropdown list with the returned data. Here is my
Dim AccountID As Integer = 29783925
' Query returns Account details for account with the ID AccountID
Dim strQuery As String = "<queryxml><entity>Account</entity>" & _
[Code]....
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Jun 14, 2011
My error is option strict doesnot allow late binding
[Code]...
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Mar 15, 2008
I'm binding a DataGridView to a BindingSource to a LINQ IEnumerable, I found that the BindingSource.Find method throws an exception because .Find isn't implemented in IEnumerable (and the BindingSource just passes the call to it's DataSource). I need to use BindingSource.Find to select/highlight a particular row in the DataGridView.
Is there a feasable way to extend my DataContext to support this behavior w/o breaking anything else? I expected to find the code out there already, but I've searched exaustively with no luck.Without it, I cannot "move" the BindingSource using .Position and that's a pretty common use of the BindingSource I think.
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Apr 21, 2009
list the steps to fill a combobox using a bindingsource. I dragged a bindingsource onto a form, created a datatable and datatableadapter(correct term?), added a query. I tried but I am missing something, my combobox displays System.Data.
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Mar 7, 2011
I've got a BindingSource for a DataSet. I'm fairly new to this whole binding business and databases, and it took me hours to figure out how to use BindingSource to get to an item, because the Row method was not included in the autocomplete. Not to confuse anyone, here's some sample code:[code]The code runs perfectly and does exactly what I want. My problem is the following: When I've typed in source.Item(0)., autocomplete does not display Row in the list. Is this perhaps not the best way to do what I'm doing? Is there a reason it's hidden? Is this a good coding practice to do so? The fact that is wasn't there took me lots of time Googling, so I'm trying to figure out whether it's a Visual Studio glitch or my own.
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Nov 11, 2010
I have a datagridview that is bound to a list object of a custom type via a BindingSource. From everything I've read, I should be able to click the column headers and the rows sort, This doesn't happen for me. Sortmode is set to automatic and the column headers aren't set to be used for selection so it should work.
I know that I could sort progamatticly but that seems a little bit of a waste given that I should just be able to do it by default.
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Nov 23, 2011
I have the following:
a table of addresses and a bindingsource for the table
a enum list of address type: 0 = "Mailing", 1 = "Physical", 2 = "Shipping" etc...
I would like to bind the datasource of the combobox to the enum so it displays "Mailing", "Physical" etc. Then I would like to change the bindingsource position of the address table based on the user selection of the combobox.
Here is what I have so far:
cbxAddressName.DataSource = New BindingSource(ApplicationEnums.GetEnumList(GetType(ApplicationEnums.CompanyAddressType)), Nothing)
[Code].....
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Aug 4, 2011
I've created a bindingsource like this[code]...
the data. However, I neeed to retrieve user ID and Pwd for a given server from bdsServers. So far I was not able to do this. Googled like crazy
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Nov 30, 2011
I have a grid populated from a list. Now there are particular properties in this list that I don't want displayed on the grid. It displays all of the columns perfectly, then adds 2 others I didn't originally have on the grid when I constructed it in designer mode. I have removed them after the binding with DataGridView.Columns.Remove("ColumName"). However, is there a way to prevent it from adding these beforehand, or is this the only way?
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Mar 16, 2012
I was wondering if its possible to bind a datagrid column to a list (Of T) thats stored within an observable collection!
Here's my current code:
Dim _BindWithThis As New List(Of BindWithThis)
Me.DataContext = _BindWithThis
For i = 0 To 3
[Code]....
This currently displays four rows of "(Collection)". Is it possible to step into one of these "Collection" rows and display the data? I know that this is possible to do with a list box by binding with a specific element in the collection:
ListBox1.ItemsSource = _BindWithThis.Item(0).DataValue
I just can't work out how to do this with a datagrid...
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Jul 20, 2011
I have the following Object: PatientEligibilityObject
It has One To Many relation with PatientsEligibilitiesDoctorsSpecialties
I fill the Child value into Grid like following : - Dim lst = PatientEligibilityObject.PatientsEligibilitiesDoctorsSpecialties.GetNewBindingList()
It fills the grid with All Columns in the Table PatientsEligibilitiesDoctorsSpecialties
ID
PatientsEligibilityID
DoctorSpecialtyID
RegDate
RegUserID
[CODE]...
Notice that there is a foreign key between PatientsEligibilitiesDoctorsSpecialties and DoctorsSpecialties
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Nov 4, 2009
I am trying to see if producttextbox.text (getting ready to be entered) is duplicated in the DB. I have searched and search and typed some code but nothing is working. Code shown is so far the closest.I do get the NO MATCH message box now although it is a duplicate record. At least I know I am getting somewhere...
Public Sub ValME()
Dim dv As New DataView(FSC_DATADataSet.PERS)
dv.RowFilter.Contains(ProductTextBox.Text)
[code].....
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Apr 19, 2010
I have data bound text boxes that loose the entered data in "BindingSource.EndEdit() code. This would seem to violate all forms of logic. I have provide my code below as well as a copy of the debug.print data.
Private Sub SaveToolStripButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles SaveToolStripButton.Click
Me.Validate()
ErrorTrap = 0
[Code] .....
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Nov 7, 2011
I am trying to delete data using bindingsource.removecurrent() ,but using the following code, it's just not working.
CODE:
bsmail is filtered in another form, perhaps the problem lays there? i don't know if the code to remove the current data is correct.
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Aug 21, 2011
Im using a bindingsource to add new records to my db using bindingsource.addnew()When this is evoked, it seems to automatically increment the recordcount and then blanks out the content of every bound to that tables bindingsource. So that all fields in the new record have to be filled in manually.I would like to be able to pre-fill some of the data in the new record. for instance, when a user adds a new record, have a specific column in the new record automatically populate with the selectedvalue of a combobox.I assume this means I may have to manually code up my own addnew routine, but google has let me down on where to start.
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Oct 17, 2009
I'm using a bindingsource to bind a dataset to a datagridview. Normally I would use a dataview to sort and filter the data, but since a bindingsource can also do this, I figured I would not need a dataview anymore. But I'm not sure how to get certain data from the filtered source. I know I can get it from the datagridview, but I'm not loading the entire dataset into the datagridview. I guess I could and then just make the columns I don't need be invisible. Or I could go ahead and use a dataview also, but that seems redundant. I was wondering if there is an equivalent to this code to get a specific item from a dataview, but pulling it from the bindingsource:
tbCode.Text = dv.Item(m_recno).Item("CodeNo")
As long as I'm not filtering the data, I can get it from the dataset, but when it's filtered, the indexes won't match.
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Nov 23, 2011
Public Class Item
Public Text As String
Public Value As Integer
End Class
[code]....
Why does this not work, where itms is a List(Of Item)?
Error event triggered on the line: Me.uxDropDown.DataBind()
DataBinding: 'Project.Item' does not contain a property with the name 'Text'.
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Jun 12, 2009
I have a list box which is containning diffrent groups from database. On the form i have multiple controls like checkboxes, text boxes and so on. Wht i have to do when some one selects a entry from list box the others controsl should be populated from that value. User can edit the data , delete the data and so on.
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Dec 4, 2010
I am using the following code to populate data in Textbox1:
[Code]...
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Oct 13, 2010
Bindingsource.position/current. after data been updated
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Jun 25, 2011
i am currently working on a database project using Microsoft Access 2007 and VB Express 2008.my problem is, i want to create a searching function in one of my tables; table Coachee. I know that it is possible to search data using bindingsource.filter as i've already succeeded in doing that. The thing is, how do i actually prompt a messagebox saying that the record of the Coachee ID to be searched is not found? [code]
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Sep 13, 2010
What I would like to do is bind a combobox to my own object which is as follows:
Public Class Categories
Public Sub New(ByVal myConn As SqlConnection)
Dim myConnection As SqlConnection = myConn
myConnection.Open()
[code]....
(I have put breakpoints and I know this object has data.)So on my form how do I bind my combobox to this object? The code I have is below:
Dim bs As New BindingSource
bs.DataSource = New Inventory.Categories(myconn)
cboCategory.DataSource = bs
cboCategory.DisplayMember = "Description"
cboCategory.ValueMember = "CategoryID"
but it returns the following error: Cannot bind to the new display member. Parameter name: newDisplayMember
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May 24, 2011
have a binding list which i want to be able to add and remove items.This is the class im using
Friend Class ExecutableItem
Public Property Text() As String
Public Property Method() As Action
[code].....
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Jan 18, 2010
I am trying to bind a list of a structure to my datagridview. But I just get a load of empty rows (I created the columns manually).
Public Sub New()
' This call is required by the Windows Form Designer.
InitializeComponent()
[Code]....
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Sep 20, 2011
I am trying to bind a New List(Of KeyValuePair(Of String, Integer)) to a listView
Currently, I have a code off:
Dim TestList As List(Of KeyValuePair(Of String, Integer))
For Each key in GetTPDesc (Which is a list of strings)
TestList.Add(New KeyValuePair(Of String, Integer)(GetTPDesc.ToString, 0))
[code].....
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Jun 12, 2012
I am trying to get my grid to refresh automatically when the underlying data is updated in the database. Isn't this supposed to work? Or am I missing something? I created a DataTable within my DataSet. Then I created a new form and added a DataGridView (actually I'm using DevExpress' XtraGrid but am trying to get it to work with just the Microsoft controls). I use the menu in the upper left of the grid to set the grid datasource to the datatable in the project data source. This then automatically adds the dataset, BindingSource, and TableAdapter to the form.
[Code]...
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