I am using VB.NET in VS10. After I add items to a list box I'd like it to scroll down so that the most recent items are visible. I tried this with no luck:
StatusListBox.SelectedItem = StatusListBox.Items.Count - 1
How to make the box always display the most recently added items?
I have a DGV that is designer generated. I can create a row perfectly fine, and I can edit rows perfectly fine. However, if I try to edit a row that I have just added and saved, i get a concurrency error. As you can see in the code below, I perform some "injection" of information into the rows before they are pushed back to the database.
System.Data.DBConcurrencyException was unhandled
Message=Concurrency violation: the UpdateCommand affected 0 of the expected 1 records.
RowCount=1
[Code].....
I have a project which had a listview on it which had a property set whereby the last item added was always visible, i find now the listview does not do what i need so i have changed it for a dgv. In essence what i'm doing is a log.
View 2 RepliesI am developing an ASP.Net VB Web Application
The application contains a GridView which displays the records of a user table from my created datable. The database is an Sql server database.
The code below inserts data into one table and through the built in function @@Identity to insert the most recently added record id (tt_id) from the trainingTbl table and inserting that record id into the userAssessmentTbl. Adding the identity to the second userAssessmentTbl table works fine.
[code...]
The issue I'm having seems to be centered on how I insert a uniqueidenifier from a GridView into a userAssessmentTbl database!
And how, I guess using a loop I can insert the UserId records from that Gridview (GridView1) into the userAssessmentTbl table along with the looped id from the @@Identity.
This part of the insert parameter seems to be incorrect:
[code...]
And the error I'm met with is: 'Conversion failed when converting from a character string to uniqueidentifier.'
I've also tried it like this:
[code...]
And im met with the error: 'Operand type clash: int is incompatible with uniqueidentifier'
The qusetion has slightly changed to how do I Insert a String into SQL DB Where DataType Is Uniqueidentifier?
my homework question is to display the selected items from a listbox (multi-extended) in a label. I need to display all the selected names in a label. the simplest most uncluttered way of doing this. This is what I've got but it doesn't work.
[Code]...
I'm using VB.NET 2010 When I try to add the items from a listbox to a textbox, I get a strange combination at the beginning of the textbox, but if I read further, the actual combination that I want is at the end.
So let's say I have 3 integers in my Listbox like: 01 02 03 And I want these three items to be in the Textbox like this: 01 - 02 - 03
[Code]...
How can i change the order that the items are added into the listbox? This is the original order:
[Code]....
And so on... What i want to do, in other words, is for the newest added item to be at the top of the list.
I have a program that adds controls on the fly to an auto-scroll panel. When the panel is scrolled (viewing the bottom of the panel for example) and a control is added, it looks like it is added assuming the top left corner of the panel is still at 0,0 when in fact it may be 0,500. To see what I am talking about, create an empty "Windows Forms Application" project and insert the below code into it.
Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents btnAdd As System.Windows.Forms.Button
Dim ButtonCount As Integer
[code]......
1 listbox, 1 textbox, and 2 buttons (for start, and stop)if I press the the buton for start the textbox will display (one by one) the items in listbox.. and if i press stop the textbox will stop displaying items..is it possible? do i have to use a timer for this?i think i have to use Do While (or Do until) Statement...but..hmmm i don't know..
View 4 RepliesI need help writing an application which is a status changer. For testing purposes, I'm pulling each item in a list and displaying each to a message box. In reality, it won't be a message box. I'm using a FOR LOOP to accomplish this. [code]...
View 3 RepliesI am trying to display listbox items in a label.After debugging,I get the error : " make sure that the maximun index on the list is less than the list size"
Private Sub xMultiButton_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles xMultiButton.Click
Dim count As Integer[code].....
Getting ListBox Items To Display Properly
View 2 RepliesI have a simple application that take data of out a text file line by line and add to a listbox, and listbox display every single one. I want to display only 25 items at a time, such as every time I add a new item to listbox, it bumps off the oldest item displaying so the listbox only show 25 lines at a time. How do I accomplish this task?
View 4 RepliesOkay so I have a Textbox a button a listbox and a picturebox.
This is what I want to happen.
I want to type Balloon into the TextBox, then press the button.
Then I want the listbox to display 2 items. Balloon1 and Balloon2.[code]...
How do I display Items that are Checked from a treeView in a listBox using VB?
View 1 Repliesi tried a couple things but no go...Like:
Dim x As Integer
x = ListBox1.SelectedIndex
Label12.Text = x
How would I take all my listbox Items (can be different every time) and put them in one single string with ControlChars.NewLine between each of the items.
View 11 RepliesI 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.
View 5 RepliesI am just wondering how I can make a listbox count the number of selected items and display it in a text label. My listbox selection mode is on MultiExtended.
Also, can someone provide the definitions for:
SelectedItem
SelectedIndex
TabIndex
how to make a datagrid auto scroll to the bottom when data is added. Does anyone know how to scroll a datagrid to the bottom when data is added??
View 1 RepliesHow can I save ALL of the items in a listview, items that were added by the user? I tried application Settings and tried creating a settings file but there is not a settings option for listview items.
View 8 RepliesI've dynamically added 20 pictureboxes to a panel and would like to see the panel scroll when I use the mouse wheel. To implement this I have tried to set the autoscroll to true on the panel control. Here is the code.
For i As Integer = 1 To 20:
Dim b As New PictureBox()
b.Image = Nothing
[Code]....
It works for "button" control, but not for the "picturebox" or "label" controls?
How can I implementthe scrolling affect using 'mousewheel'?
I am using Visual Basic 2008 Express Edition and I am trying to set a listbox so it starts to scroll when it hits the middle point of what is viewable on my list. I also want to set it so the list is always visible so you when you reach the bottom of the list you can scroll down to the bottom but if you scroll back up once it reaches that middle point it will start to scroll up again.
View 2 RepliesI have an Address Book project with a listbox. The listbox is bound to the database via the little arrow pop-up box in the corner of the listbox. I have the DisplayMember set to FirstName, and obviously only display the First Name of the contact in the ListBox. Is there an easy way to change it so that it displays the First and Last names? I can't change the binding because I need it to get the ID of the record selected.Here's the basis of my code...
Private Sub MainForm_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'CompanyDataSet.Contacts' table. You can move,
[code].....
I'm wanting to add a menu to my project that is going to be dual controllable (touch screen and physical buttons). For when it is being used with only buttons, i need a way to 'scroll' through the items in a ContextMenu. I've tried using SendKeys to send up and down keys but this did nothing and i've also tried using 'GetNextItem' but this also did nothing.
View 1 Replieshow to use #ZipLib. I've tried there forum and I've looked on this and other sites . I'm still new to VB and trying to teach myself. Using items like a text box are easy but i don't know much about how to use added items such as #ZipLib. Examples of compress and decompress would be wonderful but if you show me what can that would be great too.
View 2 RepliesAt first I am totally new in VB 2008. In my project I Three textboxes and a listview. I can find the items of listview by 1st textbox change event. The codes are as given below:-
1) How to scroll the listview items by textbox keyDown and KeyUp event.
2) And I want to get the listview focused item in the 2nd and 3rd textbox by 1st textbox keypress event( Enter press on keyboard).
In my project I Three textboxes and a listview. I can find the items of listview by 1st textbox change event.[code]...
View 3 RepliesThe length of items in my listbox exceeds its width. So, some of the texts are lying hidden and i couldn't view it fully.Is it possible to add a scroll bar in listbox?
View 1 Replieshaving trouble only adding the checkboxstatus's that are checked to the gridview.
[code]...