it's possibly to bind the values in a combobox to a column in a dataset? If so, how would I go about doing it? For example, If I have a column named 'Names' in a DataSet, each comboBox item would be a name from that column.(There will only me at maximum, 10 entries)
View 6 Replies
I am using Visual Basic 2008 Pro. I am trying to figure out how to bind a set of column headings in a DataSet (or DataGridView) to a ListBox. I want to show the column headers in the listbox control (not the data), and allow users to select one or more items
View 4 RepliesI have a ComboBox with its datasource being a dataset from a SQL Server database.
The width of its columns are relative to the width of the name of the columns. I would like to increase that width in order to see the content properly and not cuted.[code]...
I have a combobox which is populated from a dataset (pulling values from the column Actuator_ID). When an item is selected from the combobox, I need to return another value from the dataset (column Gateway_Channel). In the 'selectedindexchanged' sub, I have the following line which should return the value from the second field (gateway_channel) but whatever item is selected in the combobox, only the value from the first row is returned.
errBox.AppendText((ds.Tables("Actuators").Rows("Actuator_ID" = ComboBox3.SelectedItem.substring(0, 2)).Item("Gateway_Channel")).ToString
How to update combobox values coming from a dataset if I change the connection string. The connection string takes effect but doesn't update the dataset tied to the combobox.
View 3 RepliesI have 2 table in my dataset i want to add both table column names to the combobox.. how can I add the other table to the datacolumncollection?
'gets column names from typed datset and uses as combobox in datagridview
Dim columns As DataColumnCollection = DataSet1.Tables(1).Columns
Dim column As DataColumn
[code]....
I would like to iterate through a dataset and obtain values of each column in a row
[Code]...
wanted to create a chat loader, and i wanted it to read values from a xml table.
This is the code i have used in Vb.
ChatXml.ReadXmlSchema(My.Application.Info.DirectoryPath & "/../Release/chat.xml")
ChatXml.ReadXml(My.Application.Info.DirectoryPath & "/../Release/chat.xml")
ComboBox1.DataSource = ChatXml.Tables
[code]....
Complex DataBinding accepts as a data source either an IList or an IListSource.
enter code here
Not sure, but tried to add data to the Tables in DataSet, but seems i can't get it to work.
How to set values to a predefined combobox column in datagridview i.e., I want to set some values to this column other than binding
View 1 RepliesI have a datagrid on my form, it is set to loads CSV
Can someone tell me how I can show the values of a particular column (showing no duplicates) in a combobox?
I m filling values in DataGridView using following code [code]Can anybody help me to insert and retreive values from database in datagridview combobox column.
View 1 RepliesI have a table in my database with 5 columns (ID1 to ID5) and just one row. I'm trying to bind a comboBox, to show ID1 through ID5 in the combobox when my form loads. I have a dataset and tableAdapter's made for this already. I just want to know how to bind a combobox to those ID values.
View 4 RepliesI'm trying to do the following for asp.net combobox:
Text='<%# IIf(Eval("Name").ToString().Equals(""), Bind("Other"), Bind("Name") %>'
What I'm trying to do is if the "Name" column is empty then bind to "Other" column, otherwise bind to "Name" column.
url....is it possible to bind this through dataset? i'm looking for any but i can't find (or maybe i'm just not looking at the right direction.
View 4 Repliesam trying to calculate the values in rows in column 6 based on values of column 5. Bellow is the the code I am using I get a run time error about the string not formatted properly
[Code]...
Is possible to bind a dataset to a listbox and display the appropriate columns and rows the same as a Datagridview ?
View 2 RepliesIn my vb6 I bound my data directly to the database but I think it might be better to use the the dataset in the updated version.[code]...
I can do a for each statement on the quary now but how can I set it to a variable as to use the move first, next ect. Also, does anything need to be closed/dumped after the execution of the quary?
I am looking for a vb.net example of how to bind a dataset/datatable to data repeater and have the data elements bound to the columns of the dataset/datatable?
View 2 RepliesI have a module where i have specified the connection string as below:
Public Function Connection() As String
Return "Data Source=192.168.0.1,1433;Network Library=DBMSSOCN;Initial Catalog=test;User ID=sa;Password=123456"
End Function
Then i have a form which has two textboxes. What i am trying to do is bind the two textboxes to a dataset in the following way:
Imports System.Data.SqlClient
Public Class Form1
Inherits System.Windows.Forms.Form
[Code]....
I'm using Visual Basic 2010. I have my dataset in my program. I'm have several combo boxes on the form that I was able to bind the particular table with the information from each table to most of the combo boxes by dragging and dropping them onto the combo boxes. However, one combo box in particular must be populated by code. When a user selects, let's say "a" from one combo box, I need the next combo box to display information in certain tables only, based upon their choices in the previous combo box.
View 2 Replieshow to bind a listview to my .mdf dataset. how would i also manipulate the binding navigator that comes with datagrid view or details view when you put the fields on the form with buttons i want to add apart from the ones on the navigator itself?
View 6 RepliesThis is my first post here so forgive me if I am not following any correct protocols. I am attempting to generate a DataSet and bind it to a datarepeater object. I had been doing this at Design Time and was getting an error message when filling the dataset when the form loaded. So I am basically createing the dataset in my code now when the form loads and binding it to the datarepeater. However, when I attempt to bind the dataset I get a NullReferenceException - even through I know that there are 60 rows of data in the dataset table.
[Code]...
As you can see i have several debug messages in there. I get the error on the last line when setting the datarepeater data source. I try and get data for a specified lot - if it doesn't return any values I create some values in the datatable and add them to the DB. On first load when there is no data this works perfectly. If I then close the form and reload it, it will display fine. However, if I change any of the data (database is updated) and then go back in again, I get the error above.
I have a combobox on a form. It works but I want to filter it with a constant value. I don't want to change the query in the dataset because that would affect other programs. So I click on the little arrow on the combobox in the form design view and then click on Add Query and make my new query which I preview and it's okay. The problem is I can't find any way to make the combobox reference the new query. In the properties for the combobox the Data Source is just the binding source. How do I specify a specific query?
View 3 RepliesI have here a combobx1 that has a value of Mr.A and Mr.B. want that if i choose from my combobox1 the selected value will go to my sql database.
View 2 Replieshow do i change the display member of a ComboBox after i have entered a code in a textbox that it represent the combobox value?example
Code: 02-001 Combobox: Provider X
if i change the code the provider combobox must change and if i change the provider combobox the code should change!..
if e.keychar = chr(13) Then
combobox.valuemember = textbox.text
combobox.displaymember = me.stockdataset.selectprovider(@textbox.text)
end if
this code change the combo box display member but if I change the comobox by clicking it the code on the textbox doesnt change, to its corresponding code...the combo box is bound to the provider tables....
I have a listbox that is bound to an observable collection of Audio (custom class).The Audio class has two properties, DisplayText (string) and a property called TarpIds (Observable Collection of Integer).I need to allow the user to change the TarpID in the combo box for each list item displayed and catch the selection change.I created a DataTemplate that styles the DisplayText property from the Audio object and adds a ComboBox to display the available TarpIDs for this audio (These are dynamic and unique to each Audio).The DisplayText works great, but I can not get the TarpIDs to display in the ComboBox.FYI I set the ItemSource at run time that binds the ListUploadAudio to the Observable Collection of Audio.[code]
View 1 RepliesI have cascading data-bound combo boxes, however, if the second of the two boxes does not have the value, I am trying to change the data source of the original process to the default selection.
However I am getting errors no matter what I try to do to get the combo box to clear.
cboSubSystem.SelectedIndex = -1
cboSubSystem.DataSource = Nothing
Call cboSubSystem.Items.Clear()
[Code]....
Currently: "Items collection cannot be modified when the DataSource property is set." at the Items.Clear If I try to remove the clear, I get "Cannot bind to the new value member. Parameter name: value" at the valuemember set
I hae a program that opens and reads a textfile database and have several comboboxes with a string of items and the selectedindex is returedn from database
Me.subj_pool_txt.DataBindings.Add("SelectedIndex", Me.BindingSource7, Form10.pool_txt.Text)
Upon opening a new file I run this code to clear exisitng databindings and reset text
For Each ctrl As Control In Me.GroupBox1.Controls
If TypeOf ctrl Is TextBox Then
CType(ctrl, TextBox).DataBindings.Clear()[code]....
My problem is my combobox do not re-bind to new file.They bind fine upon initial instance however
How do I get even basic binding to work between a ComboBox and an ObservableCollection? I can't get anything but error messages.
VB:
Class MainWindow
Dim Units As New ObservableCollection(Of String)
Private Sub Window_Loaded(sender As System.Object, e As
[Code]....
But I'm having a problem with showing the right info in a gridview.
Basically I've got a maintenance tool for an application. And I want to make it multi language.
This is a check for the language:
'setting the column name where to get the text resource from
Dim comment As String = "comment"
If (licentie.getlanguage() = "NL") Then
[Code]....
So far this works. But in my template I've got the following code in the gridview:
<asp:Label ID="LabelType" runat="server" Text='<%# Bind("Comment") %>' />
How do I set the column 'comment_NL' when the language is set 'NL' in the bind?
