I am trying to add items from a text file into a list box...I got that far. Now I want to click on the item in the listbox and have coresponding information appear in a textbox. How might I do this? I know it has to look something like this>
lstbxdisplay.Items(lstbxdisplay.SelectedIndex) = Textfile information Then textbox1 = " "
how do you go about to Save Items that are added to a List Box into a Text File, with the Users Details, from when they log in?
View 12 RepliesI need to load a large txt file that is in a fixed width format. There are over 45K lines, so speed is important.I need to load one of the fields into a dropdown box and have another field (label) display the text of another field in the related line.I could import the file to an access db if needed, but would rather not as i also want the txt file to update from a link on a regular bases. So having it in a DB would be more work to process that part.[code]
View 1 RepliesI know this must be more simple than i'm making it out to be, but it's not working for me.I have a listbox with items that are set up in a specific order and need to be kept in that order when going into the text box line by line.
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Is there a way to wrap the text on the list box items, i.e. go to the next line, when they're too long for the box.
View 2 Replieshow to set the value of the text that is displayed for each item of a list control, such as a checkbox list, but really this applies to most list controls, not just the checklistbox control.
I have a checklistbox control,
Friend WithEvents clstTasks As System.Windows.Forms.CheckedListBox
that I usually want to populate with a list of task names. I call the add method to add a Task object to the list. I know that if I override the ToString method, whatever value is returned by that function will be displayed as the text for the list item.
However, in rare situations, I want to display something else other than just the name. For example, perhaps I want to display the name and the value of another property, such as the value of the Boolean property "Optional" shown in parenthesis following the name.
The best that I can think of is to define a property which is set in the GUI layer and then used by the ToString function to determine how it should behave when called. If the controlling property is set to one value, the ToString will return the Name, else it will return the Name followed by the value of the Optional flag. This seems a little disjoint a kludged to me.
The other alternative which seems a little overkill is to define a new class which inherits from Task, for example TaskOptional, which overrides the Tostring method on the base class. In this subclass, the ToString function would return the Name/Optional flag value. However, this, too, seems a little nuts to have to come up with a new class just to modify how the text is being displayed in the presentation layer. I feel that I should be able to control this in the presentation layer without changing the business object or creating a new derived object.
What is the best way to accomplish this?
For Each CurrentTask As Task In _MasterTaskList
clstTasks.Items.Add(CurrentTask, True)
Next
[Code]....
adding value to items in text box from list box in order to calc
View 3 Repliesim trying to do is find out the command to compare itemview items with textbox, so i dont end up with 2 of the same customers when i add a new entry, if anyone could give me some advice i would be greatful just a hobby, bold line is my problem in script, need to try and replace.
Public Class Form1
Private Sub ButtonAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonAdd.Click
[Code]....
This is a WinForms Application in VB. In my application I am trying to make it easier for the user to pick out items in a list quickly based on the items text color.. So I am trying to assign the color to each item using a select case statement as below... The problem is that I am getting an error saying "Public member 'Attributes' on type 'String' not found." VB flags the lines with the Attribute.Add param with this error.. Here is the code that I currently have...
For Each u In _units
_counter += 1
u_lookupNumber_box.Items.Add((Convert.ToString(u.UnitId)) + " - " + (Convert.ToString(u.perMonthCost)))
[Code].....
I did notice that when I did the .attributes part when I hit "." and typed "att" it did not appear in the intelisense box in vb.. Which makes me think I need to assign the name "attributes" somehow to the dropdownbox first.. It should be noted that u_lookupNumber_box is the name of the drop down box on my form..
winform not webpage is it possible.i need to ping ip addresess from a list of items that are in an xml file and displayed in a datarepeater.and then return the response to a non-databound textbox inside each "record" in the datarepeater.i can ping fine if i hard code ip adresses into the program, but haven't been able to access anything inside the datarepeater.
just as a test i set a messagebox to give me the text of a label i have inside the repeater, even though on screen the label says server02 the message box shows the label.text as being "label15".
I'm dealing with image files so I need to have the image with the item.
I have an image list which is called img and the open file dialog is ofd1.
Hi, I'm working on a program that reads text entered into a textbox and creates a list of items by separating entries by commas. Everything is working fine, except, because I am using an array to store the items in the list, I have a limited number of entries. This is only a problem because, as it is written currently, each comma counts as an individual entry. Therefore, users can enter ",,," for example, and it would use up 3 places in the array.
I'm looking for a way to check to make sure there is text after the comma before adding an entry. I've attempted to use the .substring command to check the character after, which works until it gets to the last character. Because there is no character after that, it will give an error.
Here is my code for extra clarity:
Public Class frmMain
Dim intCounter As Integer 'Stores the # of commas in the string
Dim Messages(49) As MessageProperties
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1.In my program I have 2 textboxes.In first textbox user need to put some number.Let's say he put number 10, then in other textbox program need to write numbers from 1 - 10, like this:
1,2,3,4,5,6,7,8,9,10
If he put 20 in first textbox, in second textbox it should be:
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
2.I need to do this...Import text file to listbox.Export items in listbox as text file.
How can I remove lines from a text file at the index of a listbox's selectedindex?
View 4 RepliesI have a checked list box that is populated with the text from a text file. I started off with this code:
Dim FileToLoad As String
FileToLoad = TextBox3.Text
Dim fs As FileStream = New FileStream(FileToLoad, FileMode.Open)
[code].....
I want to append a text file with items from a listbox. I tried to search for a code to do that, but couldn't find anything(most likely I don't know what I am looking for). But I wrote this code and got it to work, but after looking at the code, it looks sloppy and I'm sure could have bugs I didn't catch....my question is, is there a better code than the one I made, or will my code work fine. I am eager to write code correctly, not just get the code to work.
Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
Dim save As New SaveFileDialog
save.ShowDialog()
Dim saveFile As String = save.FileName
[code]....
I'm trying to take items from a list box, add them to an array and then output the array items to a text file using Visual Basic 2008 express.The number of items in the list is unknown so I can't set the array size to start.[code]I'm sure this is easier than I'm thinking but after searching google, finding multiple different "methods" and having none of them work for me,
View 3 RepliesI've been trying to figure out how to do this correctly for some time now, and I have seen no insight. I'm trying to successfully save all of the items in a listbox without saving items that are not there. What I mean by saving items that are not there is when it saves, it seems that blanks magically appear in the text file.Here is a sample of my current code to save.
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I'm not completely sure if it's the loading or the saving that's causing problems, but what would happen is it would add a blank item to the listbox that I do not want.Here's a picture before the listbox is saved, look to the bottom left.Now here is what it looks like after: (notice the red oval)Does any one have any idea what could be wrong?If you want me to attach the text file, just ask.
I have my list box full of urls and what i waana do is save it to my pc as .txt file this is what my code looks like [code]...
View 12 RepliesI have a checkboxlist named cblLike and I need to know how I can get all the values of the checked item and send them to a text file. I currently have other controls on the form that are being sent to a text file, so all I need to know if how to get all the values of the checkboxlist that are checked and then how to send those in the array I already have so that it will save them in the text file along with all the other values being sent.
View 1 RepliesLet me preface this by saying that I'm very much a novice coder. I'm currently working on a small project to practice with Visual Basic and have experienced some issues during my save and load process using text files. I think I can solve the issue by changing the way my text file is initially saved. I want to see if I can sort the items and change the order in which they are written to the text file based of the value in one of the lines.[code]....
View 5 RepliesI'm looping all the properties in an object via reflection:
For Each p As PropertyInfo In values.[GetType]().GetProperties()
If p.CanRead Then
'Do stuff
End If
Next
how to determine whether the property in question is a generic List(Of T)? If it is I need to loop the list itself.
I've experimented with GetType and TypeOf but have not managed to get anything working.
To clarify, I want to keep this generic. I do not want to specify the type of T, I need to loop the list items and call the ToString method on each item. T could be one of a number of different types (application specific reference types). Is it possible to do this without specifying types?
(VB.NET 2005 with .Net 2.0)
This program is supposed to allow the user to check items in a checked list box. If the item is checked, it goes into the Completed List Box on the right. The program then adds the unchecked items to the Pending list box on the left. I keep getting placement values (e.g. O,1,2) instead of the strings (e.g. "Key Returned") in the list box results (see photo attached)
Public Class frmCheckOut
Dim i As Integer
Dim cleaning As String = "Cleaning Inspection"
Dim damage As String = "Damage Repaired"
[code].....
Another program I am working on for fun, I am basically shuffling a list inside a listbox, what I want to do is delete the rest but not sure how to go through with that. At the moment I have this: [code] Just contains the code, declarations outside weren't included.So anyway, once clicked, it will call on the function to basically shuffle in a for loop, I was wondering if I should (or how should) create another function and call it in the click button or have just a loop in the click button so it deletes half the list. What I am doing is I have 20 list of items, I want the program to shuffle the items and then deleting the lower 10, meaning, if I had 10 items and wanted 5 top, I'd want: 0, 1, 2, 3, 4 and deleting 5, 6, 7, 8, 9.
View 7 RepliesI have a text file and a list box. what Im wondering is how I would get the listbox to list the text from the text file. sure, easy, but wait! in my text file, I listed web addresses and dates with tags in front of them. for example my file would be like: [Code] what would the best way of reading the tags and displaying it right in the list box?
View 2 RepliesI am attempting to read the results from a SQL query into a List(Of) and I can see the List.count while adding items to the List increments, however in another part of my code when I am attempting to read the List the List.Count returns 0. My List is as follows:
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i want to delete an item on a listview, this is my code
If ListView1.SelectedItems.Count > 0 AndAlso MessageBox.Show("Do you want to delete this item?", "Confirm", MessageBoxButtons.YesNo) = Windows.Forms.DialogResult.Yes Then 'make sure there is a selected item to delete
ListView1.SelectedItems(0).Remove()
End If
now my problem is i want to delete that item on the text file line
( using streamreader and streamwriter)
in resources there is a text file with items like number 1
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How can I save all the data stored into a ListView? (All the text stored in a row)
View 12 RepliesI am using this code for save the items into a text file:[code]I want to save the items without blank lines like
-item1
-item2
-item3