i'm trying to add some items into a specific ColumnHeader in ListBox1. If i have 3 columns, and i want to add the information written in Textbox1 to ColumnHeader2, how can i do it?
I add using:
ListView1.Items.Add("blah blah blah")
But that adds it into the first column...
I have researched the net, youtube, and the msdn DB, and still can not find the working answer I am looking for. I would like someone to show me how you would save the contents of "Listbox1" to a .txt file using the "Save As" Option. I know how to hardcode a savepoint in, but since there will be multiple users I would like the option to be up to the end-user.
View 4 RepliesBasically on form2 i have a listbox. And on form3 i have 6 listboxes. I want listbox 2 to equal listbox (a listbox on form3) my current code does not work Private Sub formAustralia_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
Random name for each item in listbox2(which copies the items from listbox1)
[CODE]:...................
You can see i almost got the code, but i dont know how to rename!
Okay I've been wondering about this for a while now, but whenever you assign variable values to objects they tend to just become references to the original object
For example:
Dim copiedCollection As ListBox.ObjectCollection = ListBox1.Items
For Each L As String In copiedCollection
If L = "Goodbye" Then ListBox1.Items.Remove(L)
Next
As soon as it encounters the string "Goodbye" and removes the item from the listbox, the program will throw an error saying the the collection (copiedCollection) has been modified. How can I make copiedCollection a true copy (not a reference) to the Listbox1.Items collection?
After a long time searching, I am still facing an issue with my listview column header I am trying to add a sort indicator (a small 16x16 arrow, next to the column title - looks quite good).
- My listview is in Ownerdraw mode for : Items & Subitems for a couple of reasons
- So far, I was letting the system do the job for the header (e.drawdefault = true)
I managed to add very easily the arrow using the e.graphics class, right after the e.drawdefault=true, and it is actually working good.
print01.gif
(Sub ColumnHeader OwnerDraw)
e.DrawDefault = True
e.Graphics.DrawImage(My.Resources.fleche_v2_16x16, 34, 2, 16, 16)
As you can see, I'm simply using a resource, and am forcing it to 16x16 with a custom location x=34 pixels y=2pixels My issue comes with the following :
(Sub ColumnHeader OwnerDraw)
e.DrawDefault = True
e.Graphics.DrawImage(My.Resources.fleche_v2_16x16, (e.Bounds.X + 34), 2, 16, 16)
The arrow wont draw Of course the sort indicator will sometime be on the 2nd column etc.. That's why I need to use the column header's bounds.I can already hear you saying : if you do not owner draw, you can't..But why is it working with a static location (, 34, 2, 16, 16) ans not starting from another static location (e.bounds.x) How can I fix that ? I cant find previous issues similar to that one over the internet.
Points of interest :
- I tryed to load the int value e.bounds.x into a variable before, using that instead of e.bounds.x but it's all the same.
- Using the imagelist is not an option, As you can tell from the screenshot, I am already using images for headers.. the sort indicator is coming as another image
- Using ">" or "<" in the header's text is not an option either........ (sorry pal It does not look good at all..)
- Drawing the header totally in owner draw mode would be an option, but it looks quite hard to do (need to manage the "rounded" header style of the system, the mouse over - small yellow line rounded on the sides in WinXp, the click effect....).
i am new here. So my first question: How do i make, so people can upload a .txt file with a word on each line.- and then it add all the words to the listbox? I want to import a proxy list..
View 17 RepliesI have 2 listboxes, and i can't get out what i need to do for the method. The method is, if a item in listbox1 is selected, it will select the same line in listbox2 and same in reverse. there can be many many items.
View 5 RepliesSo, to save the 2 listboxes i use:[code]But how i open the file and see the words again in the listboxes?
View 1 Repliesas title says. and if it has the same values, delete one of them and add (2)
so itll be like: - before the filter:
[Code]....
I have a CheckedListBox with some stuff in it and a ListBox with nothing in it. I'm using this code to get the Selected one in CheckedListBox1 to ListBox1 and splitting it:
[Code]....
I have a bunch of code with IF..., when this code is run ListBox1.SetSelected(j + 1, True) it select the next value but j is still 0 so the next ListBox1.SetSelected(j + 1, True) will select the same value. How can i update j?[code].....
View 16 RepliesI'm trying to export a listbox (lets call it Listbox1) to excel 2007 and I'm having some trouble with it. Listbox1 contains just one column of items but the list itself is able to contain more 30 items.I have this script and it does something but, the most important thing doesn't show up: The list as in listbox1...
'Dim oExcel As Object
'Dim oBook As Object
'Dim oSheet As Object
[code]....
is it possible to add picture to columnheader in DGV instead of text?
View 3 RepliesI have just looked a datagridview which have columnheader( i mean column to choose index not contain data) contains numbers from 1 to row.count -1. How can i do that.
i am using first column in datagridview to contains index instead of that.
is it possible to change the height of the columnheader
View 1 RepliesI have an unbounded datagridview with 5 columns. Is there a way of setting the alignment of the header for column 3 only to centerMiddle, while the alignment of the others columns to remain as the default? I have been successful as setting the alignment of each columns, but I could not figure out for the column headers.
View 4 RepliesI am trying to access a specific item in a listbox. For example, I have 5 items in a list box and I need each one on a different textbox, but I cannot find the code necessary to access a individual item in a listbox. I need the third item in a textbox but I cant find the code to access that SPECIFIC item and turn it into text in the texbox.
View 2 RepliesIf Not m_Batchs Is Nothing Then[code]...
I have this list view (which is working fine) and i want to find an efficient way of populating it in a specific order, ie by date, by identity etc.
I know i can use linq but as i understand this is inefficient. If m_batchs is a large list of objects then i will looping through this list many, many time (as linq behind the scenes loops through the object collection).
How can I add all the items of a specific column of a listview. For example I had a listview of a class like:
name............... surname............... age
------------------------------------------------
asdsa..............asdasdasd................21
sadsad..............asdasdasd...............23
sadsad...............adasdasd...............24
I just want to add all the numbers of age column so I can find the total sum of ages of the students. I want, when I clicked my button It makes my textbox's text = 68 for this example.
I am working with a list of points. It is declared as a global in my form.[code]the only issue is that instead of New Point(100,100) i need to be able to navigate to the previous 4 records in the list. pull out the 4 x vals the 4 y vals and boom there you go. In the old days id make a simple loop and get r done but im not sure the syntax to step through the list that way.
View 8 RepliesI'm using VB 2008 and windows vista. I'm using a listview in my application.(view=details) I assign an image list to listview.smallimagelist. when user try to sort the listview by clicking the column header i use the imageindex property to set an icon for that column header, this works fine. When user clicks another column to sort the listview by that, I use listview.columns(PreviousColumnIndex).imageindex=-1 to remove the sort order icon from the previously selected columnheader, but it does not remove the picture from the previous columnheader. How should I remove the icon(picture) from the previous column header?
View 7 Repliesi got a DataGridView with a various number of columns, depending on the user's selection.
My problem is that if I want to print the DataGridView, it does not fit on one page
How can the column header be printed vertically?
Has anyone an idea (or better) a code-snippet?
I wonder if it is possible to find a specific row and specific columns in data base file (Access) . You see , I am using a DataGridView control to show only SOME of the columns (fields) of a table from an Access file . For example , lets say that in the DataGridView control I only show the following fields :Field1 , Field2 and Field3 .Now , when the user selects an entry in the DataGridView control , I want to insert the text from Field4 into a text box on the form .
The problem , however , is that I don't know how to get the specific row in the data base file and also I don't know how to get the text in column (field) Field4 of that row .One thing that might be important is that the index of the row in the data base file is not necessarily the same with the index of the current row in the DataGridView control . This is because in the DataGridView control the rows are order by the contents in the ID Field .ol .
I have one dimensional array that is being returned by an NVP function, the problem is that I want to count the number of ID's returned by the array to set the limit. For instance the array comes in this format ID0, ID1, ID3.... IDn, Name0, Name1, ...., Namen, Surname0, surname1, ...., surnamen etc... I want to know the n+1 number of ID's so that I can set it as the upper limit of my array to be able to loop through without setting an arbitrary number.
View 2 RepliesI have a series of files in different folders. Is there any way to open these files automatically search for lines containing fullBod and delete them completely? Then, close the file and save the changes? This tool should be able to process several files at once in a directory. clock [t= 83] SetSwitch [figure= fullBod switch= walk_across state= 01]
View 3 RepliesI'm trying to drag an item between two Groups in the same ListView called 'listTasks'.
Private Sub listTasks_ItemDrag(ByVal sender As Object, ByVal e As ItemDragEventArgs) Handles listTasks.ItemDrag
listTasks.DoDragDrop(listTasks.SelectedItems, DragDropEffects.Move)
End Sub
Private Sub listTasks_DragEnter(ByVal sender As Object, ByVal e As DragEventArgs) Handles listTasks.DragEnter
[Code]...
With listTasks.PointToClient(New Point(e.X, e.Y)) you could use listTasks.GetItemAt(p.X, p.Y) to get the ListView item you're over. Is there something like this for Groups? Or perhaps a better way to determine what group is the target of a drag-drop?
I have a situation where I have a hierarchy. I'm trying to use LINQ to get all of the items throughout the hierarchy as opposed to For Each loops. I spent some time looking for examples, but most where C# using lambdas, and I'm not quite sure I understand it. I'd like to try to get all of the Items for a specific system, the levels of items could be n-levels deep.
Code:
System
SubSystem1
Item1
Item99
Item100
Item2
Item121
Item3
SubSystem2
Itemx
Itemy
Itemz
I want to set different context menu for datagridview cells, rowheaders and columnheaders.The idea is that when I right-click any of these items, a different context menu is displayed. How do i do this?
View 2 RepliesDoes anyone have a trick to catch when the mouse is over a listview column header ? As you know there is no native handler that would fire such event...
I have build a small routine that will be able to tell over which column the mouse actually is, the problem remains in which event to put it..