I have multiple items in a checklistbox. In the page load, I'm trying to check specific items in the list (2,4,8)
I've tried cbl1.items.Item(2).checked, and different combinations of this and I can't get anything to work.
My application is in VS2008 coded in vb.net.I have a form with a datagridview which loads data from databaase.there is one column where data is stored separated by comma's.Like Name,Surname,LastName name this column as Testing.I have a checklistbox on another of my form.When the user selects a particular row from datagridview another form open and the row selected records are populated in the control of my other form.My issue is i want to check those items of my checkbox that are present in my Testing Column.I have used and array im able to fetch the records just im not able to check the items in my checklistbox that are present in the column
Below is my code
chkList is my checklistbox controls
FORM1 is my form that has datagridview
Below is the code of my second form that has checklistbox
Dim classesChecked As String() = FORM1.DATAGRIDVIEW.Item(10,FORM1.DATAGRIDVIEW.CurrentCell.RowIndex).Value.ToString.Split(",")
For i As Integer = 0 To classesChecked.Length - 1
Next
how can i check the items of my checklistbox.
Is it possible to check or uncheck all items in a checklistbox with a short command?
or is it needed to set up a for..next loop with some command or other inside the loop?
my new problem is how can i uncheck all items in a checklistbox
if tried the .items.item:
.items
checkeditems.
can't find anyware that will allow me to uncheck or change checked state
I have a CheckListBoxthat is filled with items from an array. I want the user to be able to select the items they want to remove then press a button and have the items be removed from the array. I have never worked with a CheckListBoxthat before so I'm not really sure how to go about this. Here is what I have tried so far:
Private Sub btnRemove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRemove.Click
Dim TempNameList As New ArrayList
If cmbRemove.SelectedIndex = 0 Then
TempNameList.AddRange(NameList)
Array.Clear(NameList, 0, NameList.Length)
When I re-display the array into the CheckListBoxthat it shows that nothing was removed from the array.
I've searched the forums and have only found similar things for ASP but not this exact function in VB.
I've got a checklistbox in my program which has 8 choices. I'd like to append the selected indices (the text not the index number) to a textbox on my form. How would I do this?
i am trying to add subjects and their corresponding grades to a table in you database. the table has these fields: Table1(subjCode,stdID,Grade1,Grade2,Grade3,Grade4,Grade5,Grade5,Grade6,Grade7,Grade8)And i have a checked listbox for the subjects and another for the grades. for each subject, the re are 8 items in the chklistbox, checked. The code should insert into the database a subject and its coresponding 8 grades
but when i try to Save i gives me an exception that index out of range(index was out of the bounds of the array)
[Code]...
I have a chechlistbox and i have 10 items. and items are checks randomly.
i want to determine which items in checklistbox is check.
I have a check list box. i am displaying the course names in that. user can check the courses they want to follow. they are allowed to select maximum of three courses. how can i get the checked course names into a string variable array.
View 2 Repliesi have a check list box. i am displaying the course names in that. user can check thecourses they want to follow. they are allowed to select maximum of three courses. how can i get the checked course names into a string variable array.
View 1 RepliesCan i select multiple items in a Checked list Box? I have been tryng for soemtime now but I just dont seem to get the multipe selectd items even when I put it in a loop! Listbox has the member of being Selected. A checklistBox doesn't why? I need to select mulitple items in a CheckedListBox and save it in a database.
View 2 RepliesLinking Comb Box Items to a Button to load a new formCombo box 3 has 2 items.....Item 1, Item 2i want it so if you click on the button when item 1 is selected it will load form3 and if item 2 is selected the same button will load form 4
View 1 RepliesMy application is like this : i have to search my data from database with some check box and text box when user select check box specific function go on and then when user enters some range of value in textbox then the result will shown in data grid view after that i can print it by selecting data
my vb.net code is as follow:
Imports System.Data
Imports System.Data.SqlClient
Public Class XtraForm1
[CODE]............
I m also pasting the demo picture.
Is there a way to check specific pixels in a picturebox to check the color? Basically what I have is a black square with some white dots, and I want to find the position's in the picture of the white dots.
View 2 RepliesA couple of questions about check list boxes:
How to check/decheck all the item in the list How do you copy or delete all checked items in the list
Imports System.Collections.GenericI
mports System.Net
Imports System.IO
Public Class Form2
'Dim filename As String
Public ftpSettings As FtpClient
[Code]...
I don't know what's wrong, i can only move the 1st item but the second and so on doesn't make any changes. It remains in a listbox.
I have a menu strip. In the menu strip I have something for some saved urls in the database, I called it Bookmarks. So I'm trying to fetch the items from the database and have it load in to the menu items.. but it keeps adding items and I only want them added once.
[Code]
We have an application that has a main form with a map on it. Right now the paradigm is to have forms that are displayed using menu items to display information to the user. Most of these forms are modal forms, but a couple are non-modal forms that interact with the map. For some of the forms, it really would make for a better user experience if we could dock them in the main form of the app and allow the user to see both the form and the map. For instance. We could have a list of map features in a docked window, and select one of the items on the list and have the map zoom to that feature. Or do the reverse: let the users select a map item and have a docked window that shows details of the feature. Sounds great, but I wonder about what sort of gotchas we may encounter. In particular, what if we have two windows docked at the same time? Could we get tangled up in our event code?
View 2 RepliesWhy is this code having the opposite effect? If It's checked in the checkedlistbox it's not check in my view, if it's not check in my checkedlistbox it is checked in the grid.
EDIT: More specifically. The CheckState.Checked is always the opposite. .Checked means it's not checked.
Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles CheckedListBox1.ItemCheck
Try
[Code]....
Im trying to load a text file from a specific location. What I need to do is find a way to allow my code to open a textfile from specific folder, basically what im trying to do it make it open to the desktop then assignment1 folder and thats it( the files in there) the only problem is, im going to have to zip the file (with the textbox in it) and the other person is going to have to reopen it. What I want tot do is open right to the textbox and no where else,[code]..
View 1 RepliesI'm using this code to load a text file into list box.
r = New IO.StreamReader(str)
While (r.Peek() > -1)
ListBox1.Items.Add(r.ReadLine)
End While
r.Close()
But it loads the whole file into list box. I only want to load those lines of text that contain following number: 2008. It doesn't matter if the "2008" is at the beginning, middle or the end of a line.
I have a password protected database (.mdb) which has 2 different tables, and a DataGridView What I want to do is:
[Code]...
you would think that this would be simple, but with some sample code i found i could only get it to load and not save, or it would be written for a datagrid and not a datagridview.
I have an VB application in which all UI controls are displaying in english language, i wanted to convert them into Chinese language.I was able to create Chinese locale specific resource files which has file extension as zh-CHS using a tool,
View 2 RepliesI have this situation where LoadWithPartialName appears to be the only good alternative, although it is marked as Obsolete. I work in a very tight dev environment with versioning and deployment policies that cannot be easily changed or bypassed. Let's say there's a .NET executable that I have no control on (from another division). Let's call this the client AppA application. AppA's version is 10.11.12.x. Application AppA has a direct reference to one of our class library that provides some service to the caller (returns some information).
Let's call it SvcB and the version is also 10.11.12.x. Now, AppA's division does not need to update their system as often as we do, so AppA's version will stay 10.11.12.x for some time, probably until we decide to change the format of the class that is exchanged between us. Our division needs to change the logic behind the service SvcB more often and the version must change with every major deployement.
So let's say we change the logic and we deploy a new version of SvcB, 11.02.11.x. AppA will still reference the old version, so the logic being used is now incorrect. We are thinking of creating a new "facade" to our service. Let's call it SvcFrontB. SvcFrontB's version will stay the same, in sync with the AppA's own version. Now I need SvcFrontB to load the most recent version of SvcB through reflection. This way, I am sure the latest logic is always used. How do I achieve that without using LoadWithPartialName ?
I 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 RepliesHow would I go about referring to specific listview items directly.
Under certain circumstances I want to check a specific listviewitem, but i can't seem to refer to the specific item of the listview...
any method that can check for specific value of a string whether it exists in the string and if it does then that whole string will be captured with that specific text.
View 15 Replies
