but now i have another problem in datasource property that is i want to binding more than one table so that all table's data rows can be displayed in datagridveiw control. suppose i have two table as per order no..
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I'm currently using a combo box to select one of many alternatives. From 5 alternatives only 1 works, when i click on any other it gives me the following error:"Cannot bind to the property or column 'xyz' on the DataSource.Parameter name: dataMember" Why is this error caused? What are the possible solutions to this error?
View 5 RepliesI created a master - detail form . I changed the name of one datacolumn in the dataset (not the source) from "alert_name" to "alert_name_new" and i saved all files.I checked the file <dataset>.xsd in the directory and i found the change was made... as expected.When i try to run the application the following error message appears: "Cannot bind to the property or column ALERT_NAME_NEW on the DataSource."
Note: I use vb 2010 express edition
When I try to use the following line of code:
cboSite.DataBindings.Add("Text", _dtSite.Select("Site <> 'ALL'"), "Site")
I get the following exception:
EXCEPTION : Cannot bind to the property or column Site on the DataSource.{10}Parameter name: dataMember
details I am connecting to an Access database and using .net 3.5 and writing the code in VB. In this database I have a table named Sites with a column named Site and when I try to use the line of code above I get the exception noted. I was under the impression that I could explicitly name the column that I need to use in my control (combo box).
I'm currently using a combo box in vb.net to select one of many alternatives. From 5 alternatives only 1 works, when i click on any other it gives me the following error:"Cannot bind to the property or column 'xyz' on the DataSource.Parameter name: dataMember" Why is this error caused?
View 14 RepliesI had a program that was working, then the underlying access database was changed and a few of the field types were changed from double to Decime. I went to the table adapter and tried to reconfigure the the table and adapters, but the underlying code that is generated by VB did not changed and cept the fields ad doubles and I was getting a null error.
I then deleated the table and added the table again using the same sql statements
I now can not view the desing view of the form and get the following error.
"DataMember property 'Specification_SPCUrethane' cannot be found on the DataSource."
How do I remove the binding sourse and detaset from the form so that it will display so I can fix the problem?
I am trying to bind my SQL param's qurey to bind to a table. My problem is i get this error "Fill: SelectCommand.Connection property has not been initialized."
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
If RadioButton3.Checked = True Then
Dim connectionGrid As SqlConnection = New SqlConnection("Data Source=BST;Initial Catalog=dsfs;uid=dfsdf; pwd='dsfsf'")
Dim commandgrid As SqlCommand = New SqlCommand()
[code]....
I have a dataview an i would like to show the count property in a text box.
i tryied the following
me.textbox1.DataBindings.add(new DataBindind("Text",DataView,"Count"))
But i have a exception.
I have a ReportViewer showing a report that is bound to a dataset. The dataset gets its data from a Access database backend. I have a separate form that allows the user to add/update/delete data. My problem is when the user makes changes to the data using the data entry form, the report does not reflect those changes. I have to close the entire program and reopen it before the changes take effect on my report. This piece is used to bound the report to the dataset
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How to dynamically add Datasource Property in propertygrid in vb.net?
View 1 RepliesI'm trying to display the serial number of the 'recipient' you selected in a textbox but I get this error:
System.ArgumentException: Cannot bind to the property or column RecipientSNo on the DataSource.
I did this to another textbox with a different query (same codes, just changed the column name from 'recipient' to 'issuer') just to debug and it works! I tried it again to the 'recipient' but it still doesn;t work.My code:
query("SELECT RecipientSNo FROM Recipient WHERE CONCAT(FirstName, ' ', MI, '. ', LastName) = '" & ReceiverName.Text & "';")
Try
adapter = New MySqlDataAdapter(CommandText, ServerString)
table = New DataTable
[code]....
I just coped this code and changed the textbox and column names and it did not work already.. What seems to be the problem? I double checked my table and column names already.
I'm trying to do MVP where I have a view specific model that the presenter manipulates and the view binds to. There is no other connection between the presenter and view (the view fires off commands to the domain model via a gateway type pattern).
As you can guess, this makes the ability to bind to any property of any object really important.
I'm having trouble finding the correct way to bind to the Enabled property of a ToolStripMenuItem. Most controls have a .DataBindings property, but this one seems to lack it. I haven't found much info online about how to do this. Is it even possible?
I'untangle a particularly malodorous collection of spaghetti code. Anyway, I have the following XAML code:
<UserControl.Resources>
<CollectionViewSource x:Key="XMLObjectGroups" Source="{Binding Path=XMLObjectList}">
<CollectionViewSource.GroupDescriptions>
<PropertyGroupDescription PropertyName="IsDateType"/>
[code].....
On the second line XMLObjectList is a readonly property of a ViewModel class, returning a Collections.ObjectModel.ReadOnlyObservableCollection(Of MyOrder).On the final line SelectedOrder is a property of the same ViewModel class, which allows setting and getting of a MyOrder object.
I have confirmed that XMLObjectList is being correctly referenced by renaming the property, mistyping the string, breakpoints, etc. XMLObjectList definitely references the XMLObjectList property of this particular ViewModel class.The SelectedOrder property, however, is never accessed at runtime, meaning that it isn't properly hooked up to the SelectedItem of this ListView.
how could i trap the error during i'm closing the form.. it's always give me "Cannot bind property" when closing.The program has a databound combobox, datagridview..how could i trap those error..
View 1 RepliesI've got a ComboBox with an ItemsSource which I've bound to a List(Of String).What I'd like to do is have the XAML update a String property when the SelectedValue of the ComboBox changes. I've seen a whole bunch of examples for TextBoxes which use
Text="{Binding Path=MyString}"sort of stuff, but I don't really think that'll be the way to go if, in future, I need to change the ItemsSource to a List(Of ObscureObject)...
With WPF how can I bind the IsEnabled property of a button to the selected row's DataGridCheckBoxColumn value of my grid? So every time the selected row of my grid changes the button will be enabled/disabled depending on the value of one of it's columns.
View 1 RepliesI am trying to refresh my combobox when an item is selected and added the highlighted code as shown below; [code]Items collection cannot be modified when the DataSource property is set.
View 3 Repliesi have two forms. first one is main form, and 2nd is product form. there's a button in the main form which, when clicked, product form should appear. the code is as follows
productForm.Show()
Me.hide()
then this error come:
" Cannot Bind to the property or column product_name on the DataSource. Parameter name: dataMember "
In silverlight, can you bind to a property that contains parameter? For example, the following doesnt seem to work. Am I missing something or is this not possible?
C#
private System.Collections.Generic.Dictionary<string, string> ValuesField = new System.Collections.Generic.Dictionary<string, string>();
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how to get this error becauser during i'm closing the form it will always appear.. can not bind property witht field name... i guess it's because i'm closing the form.I'm having long time to solve this problem... i can't solve because it didn't give line or part of the code has an error.. it just appear the error "Can not bind property"
anybody please help me what kind of exception do i apply that can accomodate this error... or give me the codes that will work on this error...
I would like to know if its possible to bind the property LOCATION of an object like button.[code]So that, every time I move either the hscrollbar1 or vscrollbar1 the button1.location will change or moves the object to the location of hscrollbar1.value and vscrollbar1.value. It should happen without setting its value using the SCROLL EVENT.
View 3 Repliescan i use Datasource Wizard dynamically in my application..Is is possible..open vb.net windows application..then take one combobox..Then goto combobox properties ..Then select Datasource and click on ADD project Datasource..It's open One wizard (Datasource configuration wizard).Now come to my application.i am developing one designing tool..in my tool also having combobox..i am setting all the properties to combobox ..all are working fine..but This datasource property is not working fine..i can use this DataSource Wizard Dynamically to my combobox Datasource property...This is the code i use for setting the property..
Private MyDataSource As Object
<Browsable(True)> _
<Category("Data"), AttributeProvider("System.ComponentModel.IListSource")> [code].......
I have a combobobox on my form, and I use the following code to populate the data from SQL Server:
cbname.DataSource = DSAssetName.Tables(0)
cbname.DisplayMember = "IDWLNAME"
cbname.ValueMember = "FIDWID"
[code].....
I have a Query that is in designe mode I have created 4 columns and formatting 4 columns also in datagrid view control now I want to use datasource of dgv control now when i defining datasource property with table then dgv control displaying my predefine columnas and adding 4 more columns in dgv for defining datasource.now presently to avoid autogenerating columns I definie the autogeneration column=false at this situation if i define datasource=table the no data is come up..so my query is it is possible to filled up data in predifned column using datasource property.
View 1 RepliesDuring Loading a form, I bind a datasource property of the DGV to the bindingsource, and then set the fillweight property of the DGV columns. But, after form being shown, earlier set properties are being reseted to default = 100.
The procedure is like:
1. TestForm.Show()
2. TestForm_Load(...) Hnadles MyBase.Load
DGV.DataSource = bindingsource
DGV.columns(0).fillweight = 80
DGV.columns(1).fillweight = 120
3. Me.close() (Closing the form which called TestForm.Show()
And now I have visible a TestForm with well binded datasouce seeing all the columns, but their fillweith property was beeing reseted...
I have two tables "Person" and "Alias" in a one to many relationship. I have a DGV for "Person" and want to use a combobox for the Aliases. I also have a textbox and a button for the user to type the alias name and click the button to add the alias name to the combobox and update the dataset. I keep getting the "Items collection cannot be modified when the DataSource property is set." Error. But if i use a DGV instead of a combobox for aliases, I have no errors and everything works fine. If I remove the datasource property for the combobox it will not get populated with the data already entered, so how, or can I, set it up where the combobox gets populated when the form loads and able to add items to the combobox????
View 1 RepliesLike i want it to read the lines i have in the text file but i get an error Each time i press the button Why?
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
Dim objreader As New System.IO.StreamReader("C:UsersJamesDesktopMusicas.txt")
Do Until objreader.EndOfStream
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Error:
Quote:
Items collection cannot be modified when the DataSource property is set.
Error line
Quote:
ListBox1.Items.Add(objreader)
I have the following code on a form:
Public Sub Init(ByVal SelectedItems As List(Of Cheque))
Items = New BindingList(Of Cheque)(SelectedItems )
BindingSource1.DataSource = Items
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This code gets called like so:
...
fmEdit.Init(myList)
fmEdit.Show()
All variables are populated etc, it seems to go through the DataBindings.Add ok but when the form appears I get the error about unable to bind to a property or column called Id. I tried replacing the DataBindings.Add code to use the BindingSource1 instead of Items but I get a similar error.The names of the properties in the class match that of the name in the Databindings.Add code.
UPDATE: Here is my class:
Public Class Cheque
Public Id As String
Public Status As Byte
[code]....
I have a file name that is found at multiple paths. I want to present this data to the user in the format of a DGV. I have a DGV with one text box column for the name, and another combobox column for the paths. I am having trouble getting the combobox column to bind to the property of the class that returns the paths.
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There are issue with using WebBrowser late bind calls related to object/property names generation.For example:
WebBrowser1.Document.DomDocument.Forms.Myform.mycontrol.Value = "test"
will fail with more than one instance of the WebBrowser control.what actually happen is that mycontrol object become Mycontrol and compiled vb.net application will fail with error
Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND))
at Microsoft.VisualBasic.CompilerServices.LateBinding.LateGet(Object o, Type objType,
String name, Object[] args, String[] paramnames, Boolean[] CopyBack)[code].....
Same code will work with vb6 app with multiple WebBrowser controls
Edit: This code is comipled with: Option Strict Off