VS 2010 Clearing All Listboxes In A Tabcontrol?
Apr 5, 2011
Am just goin on 3 weeks of teaching myself vb2010 and have found a long way to do a simple task. Well it seems it should be a simple task. I have about 12 different listboxes spread over 3 different tabcontrols. There are 3 buttons that load all the listboxes according to which tabcontrol they are in. I found that when populating the listboxes it would not clear before loading the information so it would basically double post, triple post etc. I've figured out one way to do it that I've put in a sub and call the line before the tabcontrols are populated with their listboxes. Here is the sub:
[Code]...
It seems like a longwinded way to do this is their an easier way to have one command clear all listboxes within all tabpages within all tabcontrols on the form??
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Jan 12, 2010
I have developed a simple form with some checkboxes, textboxes, radiobuttons, and textboxes inside a groupbox. Initially I had all of this inside 3 tabs. I created a button to clear all selections so user can restart the process of selection if so choses. It does not work (see below). I thought it is the tabs - so I went on and removed them (by coping the groupbox - deleting the tabs and then pasting the groubox into the main form). The code still does not work. Is there a setting that I must change or something else because a created a simple form with a couple of groupboxes that had all the above mentioned and it works just fine - all of them clear. Just in my form it does not work
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Sep 6, 2011
I'd like to display the same data in 6 different listboxes but with different queries.The data is formatted as so:
ExptStage
expt1Expt List
expt2Ready to Print
[code].....
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Nov 30, 2011
I have multiple textboxes that I clear once the task is done to be ready for the next set of information to be populated into the textboxes when the user opens the next file.In the textbox_TextChanged event I check to make sure there is some text in the textbox before running the code. Since I am clearing the textbox this fires the TextChanged event and causes me an error:
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Jul 22, 2011
I have a program that has to store a pre-made array that contains strings (moviename, moviegenre).
I setup all the items in the array already, example:
moviearray(0,0) = "Green Lantern"
moviearray(0,1) = "Action"
For this example, if the user selected "Green Lantern" from my listbox, then the label needs to display "Action". So yeah, it's a 2-column array: first column = movie name, 2nd column = movie genre. Now, I have a listbox containing all of the movie names (not entered by the array, but entered through the Item property of the listbox). When a selection is made in the listbox and a button is clicked, I need to have the genre of the movie output to a label. That is where I am stuck, I just can't figure out to compare what's in the list box with the first column of the array to output the 2nd column to the label.
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Mar 13, 2012
I've problem with clearing the drawing in PictureBox. The parts of a drawing are created with PictureBox1_ Paint Event like this: Name is one of the Subs (just part of a drawing). I've created a second event Timer1_Tick in which I want to clear the drawing created before but I can't reach it just with g.Clear(Color.White).
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Mar 18, 2011
I'm doing an assignment for Uni and in my VB.NET form I have some checkboxes, I'm trying to loop through and clear them (I have a button which will clear the form). My problem is that there seems to be no property I can use to set the state of a checkbox when not explicitly telling VB which checkbox I want to use. for example, I can go
WineCheckBox.Checked = False
That will check the box, but I wand to DRY the code up a bit and not have to repeat this for each check box I have, this is what I was trying to do:
If TypeOf element Is CheckBox Then
element.Checked = False
End If
I've tried using element.CheckState and element.Checked and both times I get "Checked (or CheckState) is not a member of System.Windows.Forms.Control".
This is the whole block of code:
'clear the controls
For Each element As Control In Me.Controls
If TypeOf element Is TextBox Then
[Code] .....
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Sep 24, 2011
Basically I have a list box with a collection of strings. The way it works is you select an item from the list box then enter an integer into a text box and it calculates, straight forward.Where I'm getting tripped up is I'm trying to implement a 'Reset' button to reset the list box and text box. The text box is straight forward as is clearing the selection in the listbox:[code]I understand that since there is nothing selected the index is getting tripped up or whatever but I don't know how to stop this. I'm new to VB and programming in general and have been googling for days trying to get this fixed to no avail.
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Mar 29, 2011
I am adding data to two listboxes: listbox1 and listbox2. Now i want so sort Listbox 1, witch i can do with listbox1.sorted = true. But then listbox 2 has to be sorted the same way. (The data has to be matched) How can i do this?
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Jun 19, 2011
how to compare two list boxes and remove identical values or add them to a 3rd list box, but for some reason it's not working when I retrieve the data from a mySQL database using ADODB, here's my work cut down by a fair bit for it to be easy to understand.
For k As Integer = lstFriends.Items.Count - 1 To 0 Step -1
If lstDBFriends.Items.Contains(lstFriends.Items(k)) Then
lstFriends.Items.RemoveAt(k)
End If
Next
I've tried everything from changing the data type on the mySQL database to storing the retrieved data from the database to String declaration and it simply wont compare the two listboxes
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Nov 7, 2011
Issue: The .xls file has about 800 records but it's only importing about 480 records. I step through each row and find out that some rows have null values.After spending some time I believe I figured out why this is happening. My first field is a SKU value. The first x rows have all numeric values. Then it gets to a SKU like '1234-SE' and this row doesn't have data. So it's like it takes on the field type of the first data type.Question: Is there a way to order the data before I populate the dataset? I tried to do an order by but didn't work.My current code that is not working as I want.**NOTE: I have tried 'ORDER BY SKU ASC' and didn't work as well.
Sub FillDataSet(ByVal sFile As String, ByVal sTab As String)
Dim containsHDR As String = "Yes" 'Change to "No" if it doesn't
Dim strConn As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source='" & _
[code].....
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Jul 5, 2010
the application I'm building is ALMOST done. The ONLY final feature I NEED to add is the ability to receive email. Now I'm using VB 2010. How would I go about doing this? Would I use 2 listboxes and a form with labels on it to display the message. I haven't any code yet. How in the world do I do this??
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Jan 2, 2012
I have developping a litle aplication that have a listbox named Mes and a TabControl named Tabelas with two Tabs.In Mes I have the months of the year.In Tabelas I have one Tab named Norm (to display data about Normal Work) and one named Extra (to display data about Extraordinary Work).All I want is, if the second tab (Extra) is selected, that the one tab (Norm) will be selected when Mes index became changed by the user.
[Code]...
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May 12, 2011
I have hit a brick wall with my latest project.In essence the entire tab control is created on the fly, i have successfully added any number of tabs with the tabpage title being filled correctly. my problem however is when i add the content itself to the correct page, i have no item displayed on any tabs and however i can retrieve the contents and change them with code.
My code takes a pricelist xml file from my works website and my code is supposed to allow this content to be edited and returned to the server with adjusted prices to reflect updates in our costing. All the code works except the part to display the data, and consequently the code to use this data to update the array used for the xml while the program is running is not written.
[Code]...
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Mar 12, 2009
I Have a MDI TabControl in my web browser and I want to untab the tab that I drag Up or Down (Left And Right Are for reordering tabs).I don't have any codes and I have no Idea how to go about doing this so please I need a code that can solve my problem or atleast a website link that talks about this proble
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Feb 21, 2012
I have a problem with summing up the number od TextBox-es placed on several TabPages of a TabControl. The next line works fine without TabControl:
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Apr 11, 2011
I have a Tabcontrol, and when the program loads it adds a tab. Inside this tab goes a panel (url, back, etc buttons to be added to it) and a webbrowser control.Problem is the panel docks to the top and when you fill the webrowser control the webbrowser goes behind the panel and not under it so the top is cut off.[code]Or anyone know how to remove the tabcontrol from the tabpages so theres a gap in-between to input this panel.
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Jun 25, 2011
In my VB application I have a tabcontrol, with 3 pages, the first page is for some contact data, the second page wil show the website of your contact and the third page shows the location of you contact (I used the webcontrol). when I switch from page 1 to page 2 or wathever, the text in my textboxes disapears en my first page. It happens most of the times, sometimes it just works but most of the time it freaks out.
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Aug 22, 2010
How i can do once I click on node1 that change to tab 3 for example
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Feb 17, 2012
i watched a tutorial on youtube, how to make a tabbed web-browser in vb 2010 and he didn't use WebBrowser tool he used TabControl.
[Code]...
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Nov 17, 2010
I couldt find an event that I can use to determinate which tab page is selected. I couldt find SelectIndexChanged
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Aug 29, 2010
I have a custom (inherited) TabControl which adds Drag/Drop functionality to it, so that one can drag the tabs around, either within the same control (to re-order them) or to and from other TabControls. I've noticed some time ago that my TabControl however was not raising its MouseClick and MouseUp events (or actually: it is not calling its OnMouseClick and OnMouseUp methods, which comes down to the same thing). I've been struggling with this problem for a long while and I finally figured out what is happening. I'm no closer to figuring out what to do about it though... The problem seems related to the drag drop functionality. I have this code in the OnMouseDown method (which is raised as usual):
[Code]...
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Jan 2, 2012
I am loading forms into a TabControl creating a new tab page each time the form is loaded. ** I would like to point out that I am using UC instead of a from**
Now, I can easily have many tabs with the same form loaded. On the form I have a 'Search Button' So my question is, after clicking the search button how can I tell which instance of the form the 'Search Button' was clicked? Hope this makes sense
[code]...
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Aug 1, 2011
I'm using a TabControl and have overridden the DrawItem event to produce my own background and foreground colors for the header text. It looks good but there's still grey color around each header. I thought maybe the Padding property could be set to (0,0) but that seemed to have no effect.
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Jun 10, 2011
I'm storing images in a List Of Image. When I want to clear/remove all the images it contains should I dispose & set each item to nothing before using .Clear? Or can you just call .Clear? I'm doing it like this for now...
' remove all images in list of image named "images".
For i As Integer = 0 to images.Count - 1
images(i).Dispose()
images(i) = Nothing
Next
images.Clear()
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Jul 20, 2010
I have a tab control in my Main Form which has 2 tab pages, each of which are a different form. I create them as:
Dim UserManagementForm As New UserManagement()
Dim FileManagementForm As New FileManagement()
Then set them up via:
UserManagementForm.TopLevel = False
UserManagementForm.Parent = TabControl1.TabPages(0)
UserManagementForm.FormBorderStyle = FormBorderStyle.None
UserManagementForm.Dock = DockStyle.Fill
[code]....
I have a PrintForm component on my form and I am trying to send the currently active tab page to the print form and then send it to the appropriate dialog. However, I keep getting the document contains no images. Any ideas how I pass the tab page to the print form component?
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Jul 14, 2011
"Warning1Could not resolve this reference. Could not locate the assembly "Dotnetrix.TabControl". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors." and i have no idea how to fix it. i need to use the dotnetrix.tabcontrol.dll for what im trying to do, but i can't build the program. i can debug it though. haha i am a complete newbie to visual basic but this seems to be my only problem so far.
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Mar 19, 2012
I am creating a programme in which the user searches a file by typing into a textbox. if the search terms match anything in the file, it will be displayed in the list box. I understand this may be unclear so i will include an example:If the user enters "Oliver" into the textbox, the programme will search the file for any records that include "Oliver".The records are stored in structures:[code]The user will then click the desired record (several may appear)how would i get the integer and perform simple addition and subtractions on it?
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Nov 8, 2011
i keep getting this very wierd problem were i put in audio into my forms and (Design) but when i put in a 4'th song, it stops working and comes up with a error. I havn't limited my audio to how much songs i can play but for some reason it just stops playing them. This code below is the code i use for this form
Public Class Form1
[Code]...
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Nov 15, 2011
First my prog scan a specific path "C:music" which contain Mp3. Then it takes the MD5# of all mp3 and put it in a listbox1. Also on the formload it does open a ".txt" which also contain MD5# that goes into listbox2.Now this is what i am looking to have :When i click my button it compare each line of my listbox1 to listbox2. If , for exemple , the first line of listbox1 is already in the listbox2 then it delete the first line of listbox1 (listbox1.items.removeat(0)). And Do until listbox1.items.count = "0".
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