Is there an easy one line way to select all items in an array and clear them? I've tried:
Array(-1) = Nothing
but it doesn't work. I've tried the Array.Clear but the array length can be as big as it wants. Besides the For loop is there another way to select all of the items and set them to the same value?
I have following code to fill a datagridview:
Public Sub VulMedewerkerGegevens()
Dim SQL_Medewerker As String = "SELECT " & _
"tblMEDEWERKER.Medewerker_ID,
[Code]....
As you can see in my code I dont want Geslacht_ID, Nationaliteit_ID to be displayed in my DGV. But I still can see it when I run the code.
I used the given below code to find the items of listview in my form[code]...
View 2 RepliesScenario: Writing a scanning program, thing is I can't have duplicate file names(which I generate). The img file paths r saved in a database.I'm trying to write a function that will return all the records I need using a SQL SELECT. To make this work I need to put all the retrieved records(just the one field from the database) into an array.My Problem: I have no idea how to put the retrieved SQL query into an array and then return it.
Private Function fileNameAcquisition(ByVal path As String, ByVal id As Integer) As String
Dim conn As New SqlConnection
Dim dr As SqlDataReader
[code].....
I'm in the middle of making a battleship game, and I'm trying to get picture boxes .visible=True based on the coordinates (that have already been given a nice Try/Catch/Finally error handeling block) of the ships. Example: I have picture boxes in a grid formation that are all red, and my naming convention for them is picR00 for the coordinates (0,0), picR01 for the coordinates (0,1)... et al. Because I'm using a(10,10) for my boolean array, I want the stuff thats false (not marked), those coordinates' red picture box to become visible, and the true have the green ones become visible. Here is what i have so far:
Dim a(10, 10) As Boolean, b(10, 10) As Boolean, c As Integer, x As Integer, y As Integer, ox As Integer, oy As Integer
For c = 1 To 3
[Code].....
Im using VB 2008 is it possible to set array items with one line code?for example, can i do something like: Dim array = Array("a", "b", "c", "d")
[code]...
I am a beginer in vb.net. For a school project, i have chosen inventory control as the subject. WIth help from videos, i have developed some basic forms with adding/updating.
The product table design is like this:
Name
Type
Size
[Code]...
Now, i am designing the purchase/sales screens. I am showing the items name, qty, price in a datagrid. From the products table, I am able to select the 'ProductName' by giving it a combobox . I want the ProductSellingPrice also to appear in the next column of the grid.
I have a program that re-sizes items in an array but I can't get it to work. I have:
[Code]...
It gets to the Remove but it just doesn't delete the characters from the string.
If i click "chose items" to select some controls to new tab in toolbox, VS 2008 SP1 closed automaticaly. what might be the problem?
View 2 RepliesI just started dealing with XML files. I can already create an xml document that accepts data from a vb.net form (textBoxes, etc...) What I need to do is to open an already saved xml document and fill the respective fields in the form with data from the xml document. Tried using the xmlReader method, but that yields the entire xml document at once. How can I select certain elements from xml? Here is an example of my xml code:
[Code]...
i using VB.Net to developing my application.in forms i have comobox, in combobox datas are filled by using datasource from process layer.i want '--Select--' is first items in all combobox. but i tried my ways, i cann't bring it.
View 2 RepliesI have a button, if I press the button, new picturebox will appear in my main form.How to add picturebox name in the listbox? how to select picturebox name from a listbox for deleting the selected picturebox?
View 5 Replieshow do I add items to a select column? Say I have ColumnA and ColumnB, how do I add items to ColumnA then add items to ColumnB? I have:
lvlist.Columns.Add("Cars", 150, HorizontalAlignment.Left)
lvlist.Items.Add("Car1")
lvlist.Items.Add("Car2")
lvlist.Items.Add("Car3")
[code]....
I have a Listbox1 Who Contains A TO Z English Alphabets.
I want to Change Selection One BY One WIth TIMER Like:
A
B
C
D
E
F
etc...
I'm interested in select all items in checkedlistbox, have anyone code?
View 22 RepliesI have made a ListView control with an "Add" button so I can add itemsthey should be picture files, and i want to be able to dissect the text result from the OpenFileDialog into three parts:
The name (e.g. "my pic")
the file location (e.g. "C:\Users\Me\Pictures\")
the file extension (e.g "jpg")
[code].....
how can i find the item or column in a datagridview..
View 1 RepliesI use the following loop to add the Item "email" of the first 10 rows to a listbox.
For i = 0 To 10
s = ETAPDataSet.Tables(DBTable).Rows(i).Item("Email")
lstContacts.Items.Add(s.ToLower().Trim())
[code].....
I am working on my listview as I want to tick and untick on my listview items. When I select on the checkbox to tick or untick on one or more than one listview items while I do not tick or untick on the other listview items, how do the program suppose to know which listview items I am select on the correct listview items to tick and untick?
View 4 RepliesI am trying to automatically select items in a listbox when i populate it.
see the code below listbSizeRun is a listbox
Dim sizelist As New Generic.List(Of stLib.clsRecall.sizeRunInfoVO)
sizelist = recall.getDistinctSizeGL()
listbSizeRun.DataSource = sizelist
[Code].....
I have a ListView box on my project, which is filled with another function.I need it so that when you press Button1, messageboxes pop up with all of the selected items in it.
So basically, I select multiple items in my ListView, press Button1, and the MsgBox appears showing me what I've selected.[code...]
I have a listbox that displays SSRS report names and a separate listbox for displaying email addresses. Both report names and email addresses reside in separate SQL tables. This application allows my users to select an SSRS report, report parameters, export method and email a URL link to one or multiple recipients. This part works very well. One particular report has 6 recipients and I have been trying to come up with a way to automatically select these 6 email addresses whenever this one report is selected but I haven't had any luck being the neophyte .Net programmer that I am.
View 6 RepliesI 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've got a listView item, and it has Multiselect enabled. I need to program a button to select everything in the listView and another to deselect everything. I don't know how to use SelectedIndices and SelectedItems and all that
View 1 RepliesHow would I go about programatically selecting items in a litsbox? I need a quick way for the user to be able to select all items in the list.
View 6 RepliesI have set up a class to hold song information - artist, title. I then created another class that containg a BindingList(of clsSong). I use this binding list to create a data object that can be used to create an RDLC report. This all works. Now I am trying to remove duplicates from the binding list so they don't show up twice on the report. I can't figure out how to get a distinct list for my report. [code]...
View 3 RepliesI want to know that when a user select the items on the listview to tick and untick on the checkboxes while a user do not select on the other listview items, how do the program suppose to know which listview items that a user have selected after tick and untick on the checkboxes?
Something like this:
Code:
For Each checkeditems As ListViewItem In listView1.SelectedItems
If checkeditems.Selected = True Then
If checkeditems.Checked = True Then
[Code]....
I need to know how to do this because I want to send the information of substring text to my php server.
I'm working on a program that will randomly select a loadout(weapon, perks, etc), but the user enters their current level to get the loadout. This is important because certain guns unlock at certain levels, so i don't want someone getting something they can't use.
I'm not sure what the best way of approaching this is. All i can think of is either getting a random item, checking if the user's level is high enough then if it's not high enough do it again.
In the form, I have 6 textbox and a combobox. What I am doing is that when the form is run, the user have to insert the particulars in each of the textbox and select the items that have in the combobox and it will stored in the database.Here is the code that I am using. For the combobox, I am not quite sure so could anyone help me? What I mean is help me with the combobox part.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
conn.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = G:MajorProjectFileProjectSampleUser.mdb"
sql = "SELECT * FROM customer"
da = New OleDb.OleDbDataAdapter(Sql, conn)
[code]....
I have a program that will compare an array of grocery list items glist and an array of coupon item clist.When I compare the two and if there is a match somewhere in the array I want to have a picturebox visible.When there is no match, I want the picture box not to be visible. [code] The code seems to work great until I come to the else statement.When the code finds a match it displays the picture box and the msgbox without error, but as soon as the message box is cleared, even though i've input it as an ELSE statement, the picturebox goes false again.Does anyone have any idea of how I can "hold" the picturebox to stay visible while the match between the arrays exists?
View 18 Replies