VS 2008 Checked Listbox Populated By A Table Then Retrieving Values
Feb 7, 2010
I have a checked listbox that I've populated with a table that has three columns, Name, Address, Phone - and have done so successfully, but when i display the items in the listbox, i would like to retrieve additional values of the checked items other than the primary displayitem.[code]'we now have an array full of the Name column only, from our checked items 'i'd like to grab the other two as well (not to display in the listbox, but to use elsewhere as variables) 'and keep the checked listbox as a control in the above code, the fill_array variable is only populated with the items displayed in the checkedlistbox - my question is, can i keep the display item the same and pull the other two columns from the datasource, but only for the ones that make the checkeditems list?
I need to find a method of looping through a listbox and retrieving the index number and values - quite straightforward in asp, but turning out to be something of a nightmare in winforms!Here is the scenario - The user can add values in a textbox, that are in turn added to a DataTable that gives it a unique ID and a row number, this is then bound to the listbox. The user can then move the items up or down the list by adjusting the row number in the datatable and rebinding to the listbox..
The problem that I am hitting is when the user needs to delete an item -the first part is easy - delete from the DataTable and rebind to the listbox. The bit where I hit the proverbial brick wall is needing to loop through the listbox rows and getting both the index number and the ValueMember - that way I can change the row numbers in the DataTable based on the index number against the ID number.
Dim swQuotation As StreamWriter = New System.IO.StreamWriter(QCHome.QCQuotationsFile, True) ' Otherwise, write the data to the file swQuotation.WriteLine(QuoationsCustIDTextBox.Text + ":" + QuotationIDtextbox.Text + ":" + ETC.... ETC...
I want to be able to retreive the Value of QUOTATIONID saved in the file, in another form, but i can't seem to get anywhere with it, and its bugging me.The following code Doesn't work, when it should :
'For Multiple Quotations. Dim Quotationlines() = File.ReadAllLines(QCHome.QCQuotationsFile) For i = 0 To Quotationlines.Count() - 1
I've got a checked listbox on my form which saves the checked items to a spot in my database on the .ItemCheck event.But there's a problem, when I begin checking items, I check the box and click off it, but it doesn't save. (This is if I've only chosen one item)
If I choose two or more items it will save, but unchecking them takes a lot of clicking around to figure it out.Is there a better event that I can use? I've tried the SelectedIndexChanged and that has the same result, there's a lot of clicking around in the checkboxes to end up with the desired selected items, and it does not allow a single item.
I am working on Visual Studio 2005, VB.At the back end,there is a table called "Marks" which has a column called "Subject". This column contains duplicate values.when the form loads,I want to display all the distinct values from the "Subject" column in the listbox.
I have a (checked) listview with values in the subitems. I am trying to make a simple sum of the checked values, but I can't seem to get it to work. The values returned aren't correct.
The idea is that each time I check or uncheck a row it re-calculates the values from subitems(2).
Here's what I was trying:
vb.net For i = 0 to Listview1.CheckedItems.Count - 1 Label1.Text = CDec(Listview1.CheckedItems(i).Subitems(2).text) + cdec(Listview1.CheckedItems(i).Subitems(2).text)Next i
I'm trying to loop through a column of checkboxes to see how many checked values there are in that column. The user has to have 2; no more, no less than 2, otherwise an error should show up.
Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing Dim count As Integer = 0 Dim x As Integer = 0 For x = 1 To DataGridView1.RowCount - 1 [Code] ....
The error message still occurs when I have only 2 chosen in that column. I even tried this If CBool(DataGridView1.Rows(x).Cells(7).Value = Checkstate.checked) Then
I have four textboxes that only accepts numeric data.On each box is a corresponding checkbox.I want to have a button that will get the total sum of all textboxes wherein their checkboxes are on checked state.
I have a DEM file(Digital Elevattion Model File) and I am trying to open the file,where we have Latitude and Longitude values inside the DEM file.And, Now I have opened the file using Filestream and Read the file using BinaryReader.But, I am having a trobule in getting the values of Latitude and Longitude.I am getting Byte values randomly as 1,202,31,271 etc.But, we dont have latitude and longitude values more than 180,and also I am not getting 16 bit UInt values.For example, the values should be like Latitude 20.00416666666667 and Longitude 39.99583333333333.So,read the correct Byte values of the DEM file.The code I have used till now is:
Dim fs As FileStream = New FileStream("C:UsersadminDesktopHeader and DEM fileE020N40.DEM", FileMode.Open, FileAccess.Read) Dim rd As New BinaryReader(fs) Dim convertDB As UInt16 For i = 0 To rd.BaseStream.Length
Recipe Program VB 2010 Access 2000 Access is the data source RecipeRevDataSet tblRecipes
Form1.vb When it loads I want to be populated from TypeOfRecipeComboBox from the access table.That would be on the order of French, Italian, German, Ect.When I click on the type of recipe it should populate the combo box with the RecipeNameComboBox click on the recipe name and it will show that recipe in IngredientsTextBox and in PreparationTextBox.
I would like to keep it as simple as can be, I'm just starting with VB.I also looked in the code area here and didn't see much I understood.I do have the form built and the data source done.
I have a question on a datagrid object in vb.net 2008, that I what to be populated with certain values of a parameter from mssql database. The connection is made, the column header are loaded, but I what, when the form is loaded, to populate the datagrid only with certain values, doing a select commnad where id has a value given by me.What is the command to have this select done and display the values in the datagrid?
I've been ttrying to code an app that will act like the VB intellisense, without the added properties. In short, when I type (in a multiline RichTextBox), the letter t I would like the populated listbox show at that point (because "Then" is a word in the listbox) and if I click "Then" in the listbox have it "autocomplete" the word and display it in the color blue.
Why is this code having the opposite effect? If It's checked in the checkedlistbox it's not check in my view, if it's not check in my checkedlistbox it is checked in the grid.
EDIT: More specifically. The CheckState.Checked is always the opposite. .Checked means it's not checked.
Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles CheckedListBox1.ItemCheck Try
I'm having some trouble trying to export a datatable to Access. I've built an Access DB and Table identical to the datatable that I'm trying to export using ADOX.Now using and OLEDB connection I'm trying to populate that table. The following code works just fine in another app written in 2005 but not in 2008 for some reason.
Basically I'm bringing in the empty Access table into a dataset.Filling that table with the rows from the export datatable.Then running the dataadapter's update method to send the data to Access.The problem is the da_a.Update doesn't seem to work. No errors, the Access table just isn't being populated. I checked my before and after counts. I know that the datatable is being populated. It's just not landing in Access.
Dim conn_a As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strFullFileName) conn_a.Open() 'Select Access Table into new Dataset[code]....
I have completed all the code for a loan calculator, but am unsuccessful in displaying decimal variables in string as "currency". I have added the .toString("c2") statement and only get one array to display in currency, then the second array does not round properly. Is there a convert function that will work? Here's my code:
Public Class frmLoanCalc 'Ken Schoening 'Loan Calculator
In a public module (codefile) I defined a data structure called db_connection,then declared a variable of that type like so: Public db_con as db_connection I pass db_con to a sub. I expected the db_con structure to be populated with values after the call to the sub. It does not.This is something I have done for years in vb6.What might have changed to prevent this from working?
In my program i have a listbox populated with data from a sequential text file. [code] Mary, Murphy, 16, 893782, Douglas etc.From here the user selects the person they wish to see displayed in the datagrid with all all other relevant details from the text file displaying. Problem is I cannot figure out how to refer to the selected person and then get it displaying on its own in the datagrid. [code]
i have a Checkedlistbox in a windows form, and have defined 5 values in it.Also the form holds a datagrid in it. i have manually defined 2 columns in it.Now i would like to populate datagrid with some data according to the check list values selection. When any selection was done in the checkedlistbox, some data need to added to the gird.in case if i am ticking further selection, i need the datagrid to be inserted with additional values with the prior populated data.
being a beginner, i am not able to get any idea to get this worked.
I'm doing a project in database development which requires to use a list box that will populate from a SQL Server database.I'm confused on setting up the listbox to have multiple columns that will be populated from a stored procedure within SQL.I drag and drop the listbox onto the form, size it, change it's property to multi-column, set column width to 10, but don't know what to do next.The listbox on the form design doesn't show multi-columns.
I am using VB.NET (version 2008). I have two types of items populating in a listbox (checked listbox). For example: lets say one is type "A" and other is "Type B". Their names maybe same so if the user sees those items in listbox then he won;t be able to determine their type until he click on them and checks out its properties. I wanted that I add each item to listbox and colour them so that blue for example means type "A" is there and red means the other. So this way I will be able to know at a glance that how many item of what type is present. I guess it may not be possible to do that in a standard checkedlistbox. I am also using component factory's krypton controls which enhance the gui of an application. But I dunno if I can progress using that.
I have a listbox in my form that gets its values from a data table by data binding. My question is, when the data (row) is loaded it also selects the first line automatically. I do not want this because I want the listbox to select an item only when the user clicks on it. Otherwise, the iteme should ony be listed. Is there a way to manage this?
I trying to get what I think should be a simple thing. I have a checked treeview. I need to get the text of each checked node into a string. For the life of me I can't get it. I am trying to loop thru all the nodes and see if they are checked but I keep getting a "object reference not set to an instance of an object" but I don't know why.
Dim value As String Dim node As TreeNode Dim i As Long
I've created a module for my website and when a button is clicked, it calls a VB sub on the server.
I need this sub to retrieve the values that were filled in on the form, but the things I need to retrieve values from are not asp controls, they are simple <input> and <select> tags.
How can I retrieve values from input on a .aspx page from VB code executed behind it?
I'm trying to create a function that will check the database and compare it with the value of my label. (Basically a Version Checker) If it is the same, then nothing is displayed, if not, then I'll disable some buttons and change another text to display something. Here's the code I have so far...
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Panel2.Visible = False
[Code].....
I'm positive that I'm just not putting the correct calling reference in this part:
I have two forms -DoctorAppointment -DoctorSchedule
the DoctorAppointment form has all the details about the doctor and the patient and one Schedule button which will show the DoctorSchedule form When I click on any value in the DoctorSchedule form like Monday or any other day and click on save button it opens a new DoctorAppointment form and store the Day value in the text box of the form. The old DoctorAppointment form stays as it is but the new DoctorAppointment form that appears after DoctorSchedule Save click it removes all the earlier values (doctor and patient Details) that were present on the DoctorAppointment Form.
I want that after the Save click it should not call any new form instead the Day value should come on the old form including the Doctor and Patient Details.
I have 10 text boxes and I'm trying to create an array to store the values entered by the user, I then need to add the totals of all of them, get the average, highest and smallest of all the 10 values entered by the user?
Public Class frmNumberAnalysis Dim tbArray(9) As TextBox Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
I am new to dot net programming.This is my 1st post[:)] I have two text boxes. I have to enter emp no in 1st text box and the 2nd text box should automatically retrieve the corresponding emp name from db for display. how do i go about it using the Text Chane event
