I am trying to build a DataTable to populate a DataGrid in VB.NET. The columns will be the username and then question from an exam. Each row will be the answers by user for each question.
So it would look something like this:
Username | What is your favorite color? | What is your favorite book?
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Joe Blue The Hobbit
Fred Red The Road
[Code].....
That works great and gives me a table that has the needed columns, but I am stuck as to how and get each users answer and put it under the appropriate column.
I tried adding rows in the same loop, but that just adds all of the answers under the first column.
I'm making a questback in Windows forms (VB). I've succesfully setup the MySQL-database, and made connection with everything needed. I've also manage to populate a DataTable called tblAlt for the alternatives for the question.Then I try to populate each radiobutton with rows from the DataTable.Here's what I tried:
For Each row In tblAlt.Rows If tblAlt.Rows.IndexOf(row) = 0 Thenof the table).
I've got two lists, ones a DataTable, the others an array list. I want to populate a CheckBoxList with the contents of the DataTable, and check any entries that exist in the array list:
Heres the DataTable that will populate the checkboxlist with the product column:
I'm trying to populate a List with a column of a DataTable in order to later convert it to a AutoCompleteStringCollection later. Is there a neater way to do it than the "good old" For Each?
Is there a way to use myDataTable.Rows.CopyTo for this task?
I am using Visual Basic in Visual Studio Express 2008. I am creating a form that works with an Access database which has five tables, though for purposes of my problem I will only mention two of the tables: Customer and Project.
The Customer table contains basic customer info, with a unique ID auto-number. The Project table describes relationships between two customers. There is a Primary ID number and a Secondary ID number, both of which correspond to an ID number from the Customer table. Any given ID number can exist as a Primary or Secondary ID, so if "Bob's Company" ID is 1, and "Fred's Company" ID is 2, there can be two projects, one having "Bob's Company" as Primary and "Fred's Company" as Secondary, and the other vice versa.
The user navigates through the Customer table by means of a combo box. They choose one customer name from the box, which populates a label with that customer's ID number. I have a View Projects button with the intent that once the user chooses the company, they can click View Projects and a DataGrid will appear which contains only the records from the Project table in which this specific Customer number appears (either as Primary or Secondary). So basically, with all that explanation, I'm trying to figure out how to get the View Projects button to take the CustomerIDLabel.Text and use that to populate the DataGrid.[code]...
I am developing a Windows application in Visual Studio 2005, V2.0 using VB.NET.I am coding part of an Emergency Response Information System. On my form, I have two combo boxes (cboBaseStationID and cboPriority). I am trying to populate the datagrid with records from my database based on what is selected in both comboboxes. For the first combobox, the user selects a name so the datagrid must only show records with that name. For the second combobox, this is a little more complicated. There are four emergency priorities in the combobox that the user can choose - 1, 2, 3, 4. In the database, there are different response teams (to be dispatched to these emergencies) and each response team has a grade of either 1, 2 or 3. So a grade 1 team can respond to emergency priorities of 1 and 2.A grade 2 team can respond to emergency priorities of 1, 2 and 3.A grade 3 team can respond to emergency priorities of 1, 2, 3 and 4.
So basically, if the user selects emergency priority of '4', then only grade 3 teams can be displayed. I am using two different tables in the datagrid. The datagrid is populating at the moment, but not based on anything that is selected in the comboboxes. It just displays a lot of duplicates of all the records in the tables. Here is my code so far (this code is on the search button click - I have already loaded items into the comboboxes on the form's load event):
Dim sqlConn As New OleDb.OleDbConnection Dim sqlCmd As New OleDb.OleDbCommand Dim sqlReader As OleDb.OleDbDataReader
I am using datagrid in one of my winform in which there is one column which has combobox cell type.I want to populate this combobox by data from table present in database.Tell me the shortest possible way to achieve this.
My problem is that I can't populate a datgrid with the contents of a dataset. Having searched for the last few days to try and resolve this, I have given up and thought I would try here. I am using Visual Studio 2010 and attempting to create a WPF application. As you can tell from the code I am very new to this and any suggestions for improvement will be most welcome. I can see that the dataset is populated ok via the visualizer, I have a datagrid 'dgBOM' which I want to display the results. A popular solution in my searches was to add '.DataSource' but when I type the '.' after dgBOM the Datasource option is not there.
Code:
Public Sub Connect() Dim cn As OleDbConnection Dim cmd As OleDbCommand Dim dr As OleDbDataReader
Probably a very dumb question but I have a program whereby I create and populate an in memory datatable, which I then add to a data-set. I then run a couple of updates on the dataset and need to know how to then send these updates down into the in memory datatable :Here is a mock up of the code structure following the creation and population of the table :
There's a thread that i'd read wherein you reply regarding on shortcut on populating a listview with databatable or dataset, but i forgot it. How did you populate a listview with datatable or dataset with just one line.
In datagridview .DataSource how about in listview ?
I have a DataTable that has a hierarchyid data type column pulled from SQL Server. Is it possible to use the column to easily populate a treeview object in Visual Studio 2008?
Part 1 of what i want to do is on the Load Event of my form i want to look at an excel worksheet and populate a data table with the data found in the first two columns of the worksheet.
Essentially column 1 is Descriptions and column 2 is pricing
Part 2 of what i need to do is that when a user selects a description from the combo box it populates a text box with the appropriate pricing.
After doing some reading into this all i have seen is some threads on how to use Jet4.0 to link and grab the data but it is my understanding that Jet doesnt work with 64 bit OS.
Nonetheless I need to figure out a way to accomplish my end goal and make it as universal a solution as possible (ie. i do not want it to only run on 64 bit or 32 bit machines)
I am trying to populate a VB.net dropdown box which is repeated in a datagrid. Basically I have a bunch of images and the user needs to select from a dropdown listwhat colour the item is so that I can then save it in the database.
Dim DDLPlayColorList = New DropDownList DDLPlayColorList = dgImages.FindControl("DDLPlayColorList") Using oConn As New
I want to populate a listview with items from datagrid view. I've been searching for solutions but it seems that all the scenarios I found were about populating listview with items from tables in database, not from another listview or datagrid view.
I'm trying this code: For count As Integer = 0 To (DataGridView1.Rows.Count() - 1) Dim row As DataRow = DataGridView1.Rows(count) Dim item As ListViewItem = New ListViewItem(row(fieldfirstcol).ToString()) item.SubItems.Add(row(fieldsecondcol.ToString())) ListView1.Items.Add(item) But it doesn't work; it says DataGridViewRow cannot be converted to DataRow.
just would like to ask if it is possible to manually populate the datagrid in asp.net 2003 using vb.netwe usually populate the datagrid using this code, in this code what it does is it populate the datagrid base on your query , it's automated you can't edit or evaluate the data inside.
dataGrid.DataSource = ds dataGrid.DataBind() What if if I want to edit or evaluate the data inside the DataSet?
I have a database in MS acccess, in 2 of my fields put some dates (but not on all rows).In DateField I put date as "dd.MM.yyyy" and in TimeField I put hours as "hh.mm"Now, in my vb datagrid I want to be shown only rows that has a date and n hour on the columns with dates and hours , and the dates must be latest 24h
Private Sub ultimile24_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'TODO: This line of code loads data into the 'NavsitDataSet.nave' table. You can move, or
I need some suggestions on how to tackle this issue. I am fairly new to using ADO.NET and am running into difficulty populating a dataGrid.Basically here is what I want to accomplish:
a) on form open the dgvLOCATION populates with any records found in the database that match the customer ID that is displayed in a text box (the textbox will already have a value when the form opens)
b) when the value of the Customer ID textbox changes then the dgvLOCATION will change (I am already going to do this with a text changed event...I am just having problems with the query)
I am using VS Studio 2005 and connecting to an Oracle 10g database.I have also created a 'view' for the dataGrid since it will not any binding.Currently the dataGrid will populate will ALL database records on 'form open' if the field value of Customer ID is not null.
I am using the Query Builder wizard and when I enter the following I get an error.Select C_ID, ST_NUM, ST_NAME, CITY, RESIDENCE From CUSTOMER_LOCATION_VIEW Where C_ID = :TXTCID.TEXT
The error tells me that the query could not be parsed.
I've populated my DataTable will all the results from a SQL search. Upon a button click I want to populate a combobox with all the results where a condition is met. My DataTable as a column called UserID and I want to add all results where the UserID is equal to a set value (for example 12). I can do this to add all results and I guess I could add a if statement inside this to be If Entry.Tag = 12 Then but is there a better way?
