Find Index Of Value Member In Combobox?
Aug 11, 2010How should i find the index of the value member in an combobox?
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Placing Value Member Of A Combobox In The Display Member Of Another Combobox
Jan 14, 2012I have been battling with this problem for months with virtually no success. I am using Visual Studio 2008 Professional. The database is Microsoft SQL 2005.
I have two combo boxes - both bound to database tables. These are: Combo box 1 is for "VAT" and is bound to the VAT table. This table has 3 columns configured as shown below:
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The commented out code was my pathetic attempt to put the Value member of one combo box into the display of the other. This obviously does not work and my web browser, when using Google, is full of purple headers showing the sites that I have visited looking for an answer.
When I have this working, I want to use the feature in a datagridview which may make a difference to how the problem is approached.
ComboBox / Binding / Display Member & Value Member
Aug 31, 2011I know I have done this before and as I remember it should be really easy. But for some strange reason I can't do it now and I am about to jump off the building.I will make it simple:Two tables, one is just a list of products and their code.The other table: "details" has a field named product. I want to store only the code there.In the second table's entry form, I am putting a combobox. This combo box should display the list of products, their names, but depending on which one is selected, the code is what is passed to the table "details". Currently If I set the display member to product and the value member to code it still pases the product to the binded data source.
View 3 RepliesSql - Unable To Find Specified Column In Result Set Index Out Of Bounds Index Out Of Range Exception
Apr 23, 2012i am having trouble putting a value in a textbox. Each time a ticket is sold i put the total price in a textbox, each time a ticket is sold for the same concert it increases by adding its self to the total price. It works at the first sale, but after that it breaks down. here is the code
Private Function DisplayMoneyTaken() As Integer
Dim totalMoney As Integer
'open the database connection
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ComboBox / ListBox Additem - Error 'additem' Is Not A Member Of 'System.Windows.Forms.ComboBox'
Feb 10, 2009I am using .net 2008. I have placed a ComboBox on the form and I do not have an additem.
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Access Of Shared Member, Constant Member, Enum Member Or Nested Type Through An Instance; Qualifying Expression Will Not Be Evaluated
Jun 2, 2011how do I overcome it? I have created a class and compiled into .dll This code
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Access Of Shared Member - Constant Member - Enum Member Or Nested Type Through An Insta
Aug 13, 2009In Visual Studio 2008, if I do this:
[Code]....
Does anyone here know how to get the above to work WITHOUT warnings being generated?
Warning 1: Access Of Shared Member, Constant Member, Enum Member Or Nested Type Through An Instance; Qualifying Expression Will Not Be Evaluated
May 31, 2010In the following code i get a warning at line 59:Warning 1: Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated.and.. At line 78 I get this Warning:
Warning 2 Property 'SelectedCustomer' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.
The program compiles and runs well, but i cant' undesrtand the reason for these warnings. Any Idea ?
1: Public Class Form1
2:
3: 'Form level members
4: Private objCustomers As New ArrayList
[code]....
Get Value Member Of Combobox?
Dec 28, 2009Let's say I bound a combobox to a datatable. How can I get the valuemember of the currently selected item in the combobox (for example, when I have to save the data, I need to get the valuemember - PatronTypePK - of the currently selected item in cmbPatronType)? And can anyone check if I made the code correctly or if there are any programming practice errors/inconsistencies? I wanted to fetch two tables into a single dataset (Patron, PatronType). Do I have to make a datatable for each, or can I simply use the dataadapter?[code]...
View 8 RepliesVS 2005 Access Of Shared Member, Constant Member, Enum Member?
Apr 28, 2011Cannot appear to be able to get this function to not have the above error.Private Function GetIncidentActions(ByVal FromAgentID As Integer, ByVal ToAgentID As Integer, ByVal incidentAction As Integer, ByVal ActionDate As Date) As String
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Get Value Member Of Gridview Combobox Column?
Oct 3, 2011how can i get value member of gridview combobox column? i am displaying product name in combo and want to access selected value of combo on my form to assign pproperty
View 8 RepliesCombobox Error:'Cannot Bind To The New Value Member. Parameter Name: Value'
Jun 30, 2011I actually have three combobox bind to diffrent table. and I got such the error in my title. Bellow are my codes:
myCommand = New SqlCommand("SELECT (FirstName +' '+ LastName) AS FullName FROM tblVisitor", myConnection)
myAdapter = New SqlDataAdapter(myCommand)
[Code].....
Through this code, i got only the first comboboxthat display the query result, but the other two do not, and display the message 'Cannot bind to the new value member. Parameter name: value'.
Find If User Is Member Of Active Directory Group ASP.NET?
Jul 6, 2010I am using Active Directory to authenticate users for an intranet site. I would like to refine the users that are authenticated based on the group they are in in Active Directory. how to find what groups a user is in in ASP.NET 4.0 (VB)?
View 3 RepliesSelect Object Member From Combobox List Of Objects
Nov 16, 2011I have a combo box that is populated with a list of objects (corresponding to all employee rows from a database that meet the criteria IsTech). These are not entity objects though, I have created my own class that stores the member values of each row from the DB. I have set the DisplayMemberPath to EmployeeId so the Combo box display the EmployeeId ( an integer ) member of my object. Ie. right now there are only 2 IsTech employees in my DB so the combobox displays the numbers 3 and 8 ( their EmployeeIDs).
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VS 2008 - Concatenate Two Combobox Display Member Values?
Jul 15, 2010I'm trying to concatenate two combobox display member values using the following code
Dim CB2DM As String = ComboBox2.DisplayMember
Dim CB1DM As String = ComboBox1.DisplayMember
TextBox8.Text = Join(CB2DM & " " & CB1DM)
I keep getting an error.
VS 2005 Set And Read Member Variables Of Combobox Items Object?
Jun 12, 2010I have created a class called 'MyAddress' and in the form load event i am adding few objects of that class to the combobox. I want to know how should i set and read the values of the member variables of that selected item of the combobox. I have tried this and is working, but i am not sure whether it is the way to do
vb
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
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.net - Find Row Index On DataTable?
Feb 6, 2012Is it possible to get the row index of a DataTable so that you can access the previous and next row? For example I have a DataTable that contains two columns ChapterTitle and PageURL. This is for a table of contents of a book. ChapterTitle is the chapter name and PageURL is an HTML page that contains the chapter (chaptername.html). When going into one chapter of the book I want to be able to tell which is the next and previous chapter.
After finding the chapter that I'm currently in how can get the next and previous rows?
ChapterTable.Select("PageURL = '" & PageURL& "'")
.NET Cant Find The Index Of An Array?
Apr 15, 2010This is the code for my array (which is working)
Public numUsers As Integer
Public fNameUsers As String = ("......users.txt")
Public UserRecords As Usersclass() 'note... this line is in a module '
reader = New System.IO.StreamReader(fNameUsers)
numUsers = 0
'Split the array up at each delimiter of "," and add new objects '
Do While reader.Peek <> -1
ReDim Preserve UserRecords(numUsers)
oneline = reader.ReadLine
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Find An Index In A Listbox?
Jan 8, 2012Whenever I try to find an index in a listbox, i get the answer as -1.here's my code.
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Get A ComboBox To Remove The 6th String In The ComboBox Or An Index Of (5) But It Doesn't Remove It?
Feb 22, 2009I'm trying to get a ComboBox to remove the 6th string in the ComboBox or an index of (5) but it doesn't remove it here is the function I am using:
if ComboBox1.items.count = 6 then
ComboBox1.Items.RemoveAt(5)
End If
C#: Find Index Of A Multidimensional Array?
Mar 16, 2011if i have a multidimensional array:
dim test(,,) as string
how can i loop through the array to find if another variable is contained in the second dimension of the array
dim x as integer = test.indexof(OtherVariable)
obviously above won't work
Find Index In List(of String)
Jun 7, 2010I have an List(of String), i need to find the index of a particular string in that list. I have searched msdn , but i am confused over the predicate methods. I have never used predicates. This i what i have tried
vb
'on button1 click
Dim Heads As List(Of String) = Me.GetSelectedNodes()
Dim tmp As Integer
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Find Index When Connected With Ms-access2007?
Oct 15, 2011How to find index in vb.net when connected with ms-access2007:)
View 5 RepliesFind List Index For A Given Property Value?
Aug 15, 2011Ive got two lists (each representing a table in a DB, so they are related). lstTransaction has t_id, date, and cust_id. lstCustomer has Name, and cust_id.For each item in lstTransaction Id like to find the index in lstCustomer where lstCustomer.cust_id = lstTransaction.cust_id.
View 5 RepliesFind Selected Index Value Of ListBox?
Oct 10, 2011I have loaded datatable to listview.Now when i try to do a selected index and retrieve data to display in respective text box. I find some error "input string format incorrect".but when i directly load from folder it works fine.
Data that retrieved from Datatable.Im not able to find the index of the row. But from folder and listed in ListView.Index value is found.
Dim breakfast As ListView.SelectedListViewItemCollection = Me.LOV.SelectedItems
For Each item1 In breakfast
index += Double.Parse(item1.SubItems(1).Text)
Next
Find The Index Of A Char In String?
Aug 20, 2011I have a string that goes like "abcdefg..."
I would like to find the index where the letter d is at, so I can get the number 3.
I managed to do it by looping through each letter in the string, but that doesn't sound very convenient.
Find The Location Of Element By Index?
Jan 19, 2010i need to find the location of element by index
example i enter 5 numbers
1 2 3 4 5
search a number, i search 3 it should display the lindex location? for me to understand more about vb,,more on arrays..
How To Find Index For ListView Items
Jun 1, 2012How I can find the index for the listview on a listview click event to something like this:
Code:
Private Sub listView1_Click(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs)
MessageBox.Show(listView1.Items(e.Index).SubItems(1).Text)
End Sub
I don't want to use for each integer in the listview as i would keep getting the loops which I would hate to use it. I only want to use something like e.Index. I know that the index is not a member in e, but I don't want to use listview item check event due to loops. How I can find the index for the listview items without using for each integer as only using e.index?
How To Find Index Of Item In A Stack
May 26, 2009I am using the stack class to store a collection of lines. <code>Dim myStack As New Stack(Of Line)</code> I want to find out what the index is of one of the lines that are in the collection and I'm not sure how to do this. i tried to use array.indexOf:
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VS 2005 How To Find Listview Index
Jun 1, 2012How I can find the index for the listview on a listview click event to something like this:
Private Sub listView1_Click(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs)
MessageBox.Show(listView1.Items(e.Index).SubItems(1).Text)
End Sub
I don't want to use for each integer in the listview as i would keep getting the loops which I would hate to use it. I only want to use something like e.Index.
I know that the index is not a member in e, but I don't want to use listview item check event due to loops.
how I can find the index for the listview items without using for each integer as only using e.index?
