Algar

Ahh great, thanks

Sorry, whats CLR ? I am closing, disposing, setting all object to Nothing, forcing the collect at the end of the load, and its still the exact same.

Ok, well then that explains the vast difference, but still leaves the question of how could 1 small form take up 22 megs right after being loaded ?

I have a small VB.Net application, couple small forms. Main form has a ListView, Listbox, statusbar, main menu and a 100k jpg. The load event populates the listbox and listview controls with 2-3 items each from an access db. The following is the memory at variouse stages: After Load: 21 megs Move form around screen: 22 megs Minize form:600k Maximize form: 4 megs Move form around screen: 4.1 megs Minimize form:600k Maximize form: 4 megs etc... The Virtual Memory remains a constant 10.5 megs at all times. I dispose the connection object and close the DB reader... why does it hog so much at first and reduce so much when minimimzed ? I read a previous post from a long time ago about someone having the same problem as myself, though it never really got solved so I thought I'd try now.

Ok, sorry, time to reduce font size :) thanks a lot !

In VB6 the combo or listbox control had a drop down style. I don't see a dropdown style in .net, and the only control I could find is for web forms. Is there another way or do I need to prevent editing of a combobox somehow ?

Ok, I guess the form designer code managed to trigger something cause I put a boolean var holding the db operation till the end of the form load and it works fine now.

To be more accurate, the error is: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values. with the line: sSql = "SELECT * FROM Courses WHERE Name = '" & cboCourses.Items(0) & "'"

Doh, thats the first thing I tried :) Brings around more problems then.... I have a sql string using ComboBox1.Items(0) during the form load which is giving me an out of bounds error, but its after the code which populates the list. If I call MsgBox (ComboBox1.Items(0)) after the form is loaded it works fine giving me the first Item in the list. How is this possible ?

VB.NET ComboBox I am trying to get the Text of a Combobox item by refferencing the index of the item. Sounds pretty easy but ive been fooling with it for half an hour now and no luck. Thanks in advance.

Ok so I forgot about IsNumeric.... my bad :)

sorry thats http://www.allapi.net

You can find all the API's you need as well as download the API list/viewer at http://www.allapi.com

With all these new .NET things im wondering whats the best way to test if a textbox contains any non-numbers. The best I came up with was: Dim i As Integer = TexBox.Text.Length Dim ctr As Integer For ctr = 1 To i If Asc(TextBox.Text.Chars(ctr - 1)) > 57 Or Asc(sender.Text.Chars(ctr - 1)) < 48 Then 'its not a number End If Next Seems like there must be a way to improve on this ?

Ahhh im pretty new to .NET. I didn't know about Strict, or the object methods. Thanks a lot !

Ok, everything works now after I removed the outside Trim. CInt(Trim(txtH1R.Text)) rather then: Trim(CInt(Trim(txtH1R.Text))) Not sure why exactly though, does the Trim return strings only ? If thats the case how would it allow putting a string into a Long variable ?

I have 9 Textboxes which hold numbers. I want to add the 9 numbers together and put the total in a 10th Testbox Dim R1 As Long R1 = Trim(CInt(Trim(txtH1R.Text))) + Trim(CInt(Trim(txtH2R.Text))) + Trim(CInt(Trim(txtH3R.Text))) + Trim(CInt(Trim(txtH4R.Text))) + Trim(CInt(Trim(txtH5R.Text))) + Trim(CInt(Trim(txtH6R.Text))) + Trim(CInt(Trim(txtH7R.Text))) + Trim(CInt(Trim(txtH8R.Text))) + Trim(CInt(Trim(txtH9R.Text))) txtTotal.Text = Trim(CStr(R1)) As far as I know "+" only appends when theres 2 strings. The CInt should take care of that, but for some reason its appending all 9 numbers togther. Anyone have any ideas ?

Very informative, though the second method was probably best, the third suited my needs well. Thanks a lot !

I have a "score card" type form, with 117 text boxes on it and I want to be able to change the focus to the next textbox after 3 characters have been typed in any of the boxes, as well as some other things... In Vb6 I beleive it would be something like as follows: Private Sub TextBox_Click (Index as *something*) If len(TextBox(Index)) = 3 then TextBox(Index + 1).SetFocus End If End Sub I've visted many websites that discuss control array's and provide work-arounds for .NET. One added a class that creates and removes buttons, other just say to make a routine that 'handles' all the controls you need, but the problem is I need to be able to reference other controls. (As seen above with .setfocus) If anyone knows a way this might be possible, please let me know. Thanks

I am have the following code: Dim Conn As OleDb.OleDbConnection Dim sConn = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & _ System.Windows.Forms.Application.ExecutablePath & "\db.mdb" Conn.ConnectionString = sConn Conn.Open() This I figured out on my own just playing with things. Seems like I have created a connection object, set the connection parameters and opened the connection. Now I can't for the life of me find how to create a recordset or query the database at all. These simple functions are what I really need right now, but also if anyone has a website (other then msdn, which has already confused me enough for a lifetime) that covers all these basics it would be greatly appreciated, thank you.

Ok, thanks a lot, works great ! I had already figured out that regraphing on the move event worked, but your way is much less resource intensive

I am manualy drawing 2 graphs on a picturebox. I put the drawing code in a routine and call it front the _Paint() event. The problem is: When the form is first loaded its invisible, and when I move the form from halfway off the screen, it won't repaint fully. So basicaly I need a way to make this picturebox repaint no matter what happens Here is the relavent code: ======== Form Load ========= Private Sub frmMain_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load Call MakeGraph() Me.SetStyle(ControlStyles.ResizeRedraw, True) Me.SetStyle(ControlStyles.AllPaintingInWmPaint Or ControlStyles.UserPaint Or ControlStyles.DoubleBuffer, True) End Sub ======== Control Paint ========= Private Sub picGraph_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles picGraph.Paint Call MakeGraph() End Sub Also to note, it works with other controls, just doesn't seem to want to go with picturebox

MinSize is the control size I beleive but as I went to look I noticed the MinExtra property which is the size of the undocked area, exactly what I want. All these new properties in .net uuhhhh :) Thanks !

I am trying to move a splitter control at runtime to maintain a minimum Splitter.Top position during splitter movement and form resizing. I put the following code in a sub If split.Top < 685 Then split.Location = New System.Drawing.Point(0, 685) And im calling this sub from the form_resize, split_splittermoving and split_splittermoved events. When I go to move the splitter and split.Top becomes less then 685 is starts flashing beween where my mouse is currently dragging it, and the 685 position (during the _splittermoving event) but when I release the mouse it stays in its position above the 685. Also resizing the form after the splitter has been released at a position higher then 685 does not reposition it. Thanks in advance for any help provided.

Btw Archer, love the sign :)