Automatically Selecting An Item From A Drop Down Menu?
Aug 6, 2009
I'm trying to automate a form process from a previous employee. One of the things that I have to do to achieve this is select a COM port from a dynamically populated list. I've looked around and the closest thing I could come up with is something like:
.cbbCOMPorts.SelectedItem(1) =
True
While this compiles, the computer does not like this at run-time. It throws an exception out:
i want to show context menu on drop down menu item right click...As an example,Suppose we add bookmark in mozilla & when we right click on that item..context menu is showing
Code: Private Sub MenuAddToFavorites_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MenuAddToFavorites.MouseDown If e.Button = Windows.Forms.MouseButtons.Right Then
When my application starts, it scans the computers registry for COM ports and adds them in the combo box. The combo box first index is just a blank, and the second is COM1, COM2,...COMn. What I want to do is by default, I want my program to select the first COM port in the combo box, so in this case, COM1.
I know I have to use the PORTNAME property of the serial object, but not sure how I would set that equal to the 2nd index of the combo box.
I have a strange problem with a DataGridView I'm using which is bound to a table in VB.net
I've added a checkbox column to allow a user to tick a bunch of rows that I can then loop through and save off to a different table. All the checkboxes are enabled by default. So it's really a case of unchecking the rows which aren't required.
However, the DataGridView re-enables any checkbox that I click after I click on a checkbox in another row. So in effect, only one row can be unchecked at a time.
EDIT: I forgot to mention this is a Windows form, not an ASP.net application.
How do I make a menu item on a menu strip link to another windows form (like a menu item that links to an about page already created in the project). I know that every coder knows how to do this, but i've read most of the instructions in the world for Visual Basic coding, but can't find ANYTHING I know coding fairly well, so I can modify it, but I can't create it my self.
I was just wondering weather it was possible to make it so that if I press the first a item on listbox1 then the first item on listbox 2 is selected aswell. For example I would like to have 2 listboxes lst1 and lst2 and I would like it so that when I select the first item on lst 1 then the first item on lst2 is automatically selected and when I select the 3rd item on lst1 then the 3rd item on lst2 is also selected.
I am creating an application with html using vb as the back end. Microsoft Visual Studio is the application I am using.I have two drop down boxes...one called department, the other program. When a department is selected, I want the program dropdown to only display the programs that are associated with the department chosen. I have found several different codes to do this but nothing has worked so far.
How can i remove an array item by selecting an item from listobx and press remove/delete button?for an example, if i want remove index 2 from listbox, so the array should remove index 2 item and move the item of index 3 to index 2 and so on.
My problem is i have two comboboxes, cmbFamily and cmbModel, I have values in cmbFamily: A320, A330 etc And i have a database that has all the available models for these aircraft types, i have got some help on a query so i can fill up cmbModel with all the models of aircraft available, but i only want to display the models related to the family that is selected in the cmbFamily combobox.
The query i have so far is
Query = New OleDb.OleDbCommand("Select Model From Availability", AccessConn)
'AccessConn is my database connection string I would like to have something that views the text in cmbFamily and then looks for all related model entries in the dataset.
VS2010 Professional crashes when I select Choose Items from the toolbox context menu (right click). All has been working well since it was installed in March but just suddenly started with this behaviour. I had an issue with one of my apps which caused a total VS freeze at about the same time this issue started but the app is now working correctly.It had stopped me from using VS2010 and I reverted to vs2008 but that has developed a bug which prevents me from creating / accessing any data connections. A bit stuck now.I have removed and installed VS2010. Initial reinstall attempts failed due to unverified msi file (??). However, I have now successfully installed VS2010 back on the machine. Crash problem still remains.
I want to have a listbox on the left and on the right a textbox and when i select an item in the listbox i want to read a text file or database and display the value related to it and then have the ability to amend the content.
Say I have a listbox lb, which I initialize using:
lb.DataSource = wordList \wordList is a list of strings lb.DataBind()
The listbox is initialized perfectly, and everything that should appear there does.
However, now I select one of items in the listbox with my mouse (coloring it dark blue, in case anyone wondered what I meant in "select"), and perform the following test:
I have one navigational toolbar that will allow me to click from one record to another. I am supposed to also have a navigation menu that does the same thing. I have found no information in my book that works on this. Is there a better place to find this type of information?
So basically im around 2 months into building a text based rpg game in vb 2010 which is coming along lovely. there are unique charachter creations, bans, loans, monsters to fight, levels, skill points, spells, inn's, etc etc... you get the idea. so now its time to move on to one of the largest problems of all. an inventory :O now, i have a db with the correct information in, i have even sorted all the code for the program to read the db with the correct items and its all working fine. but now i would like to have a more gui system. meaning:a grid based box where pictures of each Item_ID are displayed so you can see what items are in your inventory at any time. now i can sort this out myself with a case select and just load all the images into the local resource and pull itempictue1 when id = 1 itempicture2 when id=2 etc etc you get the idea. what i was woundering is...
could i build a drag and drop system where the player can move the items inside the inventory fairly easily? i have done some research into this but as vb isnt much of a gaming language i've run into a fair few dead ends. Not sure if i have come across right, but in essence, if you have a grid, 4x4 and item 1 is in grid space 1 and item 2 is in grid space 2.. to swap them around with the mouse.Please, dont shout if im asking too much :L nobody likes haters. any help is much appreciated and if you dont think vb can do this then please tell me and i will consider all alternate possibilities unless you have a better idea?
I am new in programing and I need some help setting the Enabled = True on a botton when selecting an item from a listbox.I have a project when I have and add a new record form and an edit record form, in the form I have added a listbox where displaying the name of the file that I am attaching, but I have also added a delete button on the form, When I load the form I have the delete button disabled:
HTML Me.BtnDelete.Enabled = False But I would like to do is that when I select an item from the listbox for the delete button to enable.
This is what I have but doesn't seem to work:
HTML If ListBox1.SelectedItem = True Then Me.BtnDelete.Enabled = True End If
When i select an item in my combobox it raises the following errorColumn 'field1, field2' is constrained to be unique. Value 'test1, 1' is already present.The combobox is bound to the table to populate it with values from field1 witch is the first part of primary key of the table. (field2 is secont part of primary key).
Here's how I'm trying to manually select a specific item in my combobox. cbEditCategory.SelectedIndex = cdEditCategory.Items.IndexOf(editItemCategory) I setup a msgbox to show "cdEditCategory.Items.IndexOf(editItemCategory)" and it's reporting -1. Why is it not giving me the right index?
Our project is to make some simplified POS software, in our case, for a restaurant. The form I am currently working on is where you pick food items and add them to a listbox which will essentially be the order form. I made a database in Access that has food-item info and linked it to the VB project.url...My combobox narrows down the food items according to what category is selected, i.e. "Lunch".Now.. is there any way I can select an item from my database records (right box) and add them to an empty listbox that I'll save to a txt file. The database box is called "FoodItemsDataGridView" but maybe I don't even refer to that, I have no idea..
I have a listbox with all items related to a person written in one line, e.g. Name, Gender, Phone #, Address, Email (all separated by a ControlChars.Tab).. How do I choose each individual item alone, e.g. Name, from a line to put it in a separate line in a file.This isn't working.. Can you tell me what code to use?
Dim outputFile As New System.IO.StreamWriter("Info.txt")For i = 0 To lstAllInfo.Items.Count - 1outputFile. WriteLine(lstAllInfo.Text.Substring(0, lstAllInfo.Text.Substring (" ")))Next outputFile. Close()
I'd like to select a node (item) in the TreeView control to get its path information as a string. I'm finding it's not like selecting an item in a listbox.
I am totally new to VB and I'd like to know, for example, when a user clicks on "Print" in the menu strip on the keyboard should automatically press "Ctrl+P", because the original print dialog, and the WebBorwser print dialog is toootaly different.
I'm new to Visual Basic, and I'm trying to figure out how to make a drop down menu to select the font in a text editor, like Microsoft Word. Does anyone know how I could do that? I'm using Visual Basic 2008 Express Edition.
I created one ToolStripDropDownButton in vb.net. I will like to put methods for every drop down items and as well as the Button Menu.... how it possible
On a form I have a toostrip control with some ToolStripDropdownButtons,each has ToolstripMenuItems. I want to display menus on mouse over not after user click on a ToolStripDropdownButtons.I saw that on a application and was fine.
