Swapping Values In A Combobox?

Nov 6, 2009

I display some values in a combobox that come from an array.By default the selected index of the combobox should be the first item.

If cboAtt.Items.Count = 0 Then
For i = 0 To nums(att)
cboAtt.Items.Add(cat(att)(i))
Next

[code]....

This works perfectly, but now I want the combobox to display the new (initial) value that is swapped, except than when I do that the cboAtt_SelectedIndexChanged event is triggered which results to an infinite loop --> crash.

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Create A Combobox With Values Depending On Values?

Jun 24, 2009

I have filled a DVG with information and added another column to index(8) pragmatically Now i want to create a combobox with values depending on values in other cells on the same row so each row will have a combo box with different selections. below i have placed the code and hoped someone would have some input on how to approach this. i have tried datagridviewcolumn but that fills every row with the same information regaurdless of a if statement

[Code]...

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Swapping Of Two Integer Variable Without Using Third?

Apr 27, 2012

In my assignment, i need to Swap of two integer variable without using third with VB.NET code. But, i still have no idea of how to do.

How can i do this with coding?

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Swapping Adjacent Letters In A String ?

Nov 19, 2008

Im programming a simple console application for the hell of it that performs a simple encryption on a string entered by the user. The encryption is simply swapping the 2 adjacent letters throughout the string. i.e encryption would become nercpyitno.

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Vb 2008 Drag And Drop Swapping Between 4 Textboxes?

May 20, 2011

vb 2008 drag and drop replacing text in txt1 with text intxt2 and replacing txt2 with txt1 and all the other textboxes. more than one time. So far I h get it to swap the text from txt1 to txt2. example txt1 = "one" and txt2 = "two" after drag and drop txt1 = "two" and txt2 = "one" now we need to keep swapping with 2 more textboxes. Here is the sode so far.

Public
Class Form1
Dim textboxes()

[code]......

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VS 2005 Swapping Collection Members' Positions?

Jul 22, 2009

This I'm almost certain is an easy problem for those with more experience than me. I just need a routine that trades the places of 2 members of a collection class.

For example: If there are 5 objects stored in a CList of() collection class, I want to swap item # 3 and #5 (or any pair of indexes), what would be the code?

This simple problem has my head spinning because once you remove a member all the indexes change.

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Datagrid View Binding Swapping Cols/rows?

May 7, 2012

I have a client who needs a database to display products.He would like to have the product attributes in the rows headers and new records added to the columns. I have a collection of a class that would contain the products and am binding it as a data source. however all I can get is the attributes to show up in the columns and the records to show up in the rows.

[Code]...

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VS 2008 User Submitted Array - Swapping Arrays?

Apr 22, 2012

Create two arrays, ask the user to populate them and display both arrays Swap the contents of the arrays using loops and then display the content.

What is the best method to have the end user populate an array? I am doing this as a windows form. Have multiple text boxes that they have to fill out? Set the elements of the array to the text box values? And how to swap the contents at run time is something I am not sure of. Isn't there a Array Swap function or something? Here is what I have so far:

Note: the bottom section was a test..and it isn't working as expected.

HTML

CODE:

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Swapping The Maximize And Restore Icons In A WinForms Title Bar In Code

Nov 8, 2010

We have a form that hosts a collection of user controls in either a 4 by 1 or 2 by 2 configuration. So the form appears something along these lines

[Code]...

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Swapping User Controls - Closing Main Menu Screen?

Feb 19, 2010

I have a project (Written in Visual Basic, using Visual Studio 2005) which has several user controls. I have had no problem setting it up where you click a button and it load a user control, but I cannot get it to remove the control that is currently open. For example The program opens on a starts screen, which has the choices, Control1, Control2, and exit. When you click Control1 button it should open up a screen to display an inventory. It does this just fine, but it does not close the main menu screen.

Here is the code for the initial startup of the project:
Public Class Form4
Public Sub Form4Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim CtrlMain As New ControlMain()
With CtrlMain
.Location = New Point(0, 0
[Code] .....

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Asp.net - Swapping A Connection String To Access A Test Database For Unit Testing?

Jun 22, 2009

I've set up a test database to begin unit-testing an app that I've recently been added to. It is a 3-tier design (presentation layer, BOL and DAL) and this is my first time writing unit tests. I've decided to start at the BOL and I figure the best way is to swap out the ConnectionString (which has been passed along as a Shared String) with one that points to my new test database. However, I don't wish to change any production code. I simply wish to somehow redirect the app to the test database during unit tests.

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Combobox - Allow Values That Are Not In The List?

Dec 4, 2009

I was useing VB a lot for some years ago and now I have started again..then, think I was useing VB3 or VB4 there was a property on ComboBox and listboxes that allows only to select the values in the Combox.. Not able to write own values..

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Combobox Get Values From Sqlcedatareader?

Jan 10, 2010

This is so confusing, i've been trying all day but it doesn't seem to work.

IN my database i have Vendor tables, i have 2 records

VendorName
a
b

I'm trying to get the comboxbox to get "a" and "b"

[Code]...

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ListView Values To ComboBox?

Nov 7, 2011

I have an XML file, and a ListView control shows the data through aDataGridView control as shown below.Now,This Japanese web site helps me understand how to get cell values.And I'm trying to populate ListBox and ComboBox with the values from ListView's
Column 2.

For j As Integer = 0 To ListView1.Items.Count - 1
ComboBox1.Items.Add(ListView1.Items(j).SubItems(1).Text)
Next j

[code].....

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Set Default Values In Combobox?

May 29, 2010

i am developing vb.net windows application. i have a combobox. In that i added items in its properties as follows

<- - - select- - - >
school
hospital
office
others

when i run my application i need to display the selected item as "<- - - select- - - >" but it display empty.....

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Set Values For Combobox Item?

Nov 28, 2009

Im trying to set values for every combox item for example if I have an item name of "currentyear" it should return the year.

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Setup Values For Combobox?

Mar 20, 2010

I want to setup values for a combobox in vb.net through code. But I don't know what's the code for setting it up. I want to do something like this:

if combobox1.selecteditem="1" then
combobox2.values=("x", "y", "z")
end if

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Type Values In Combobox?

Oct 24, 2009

Is there any way to type a value to comobox which is not on the list of item in the combobox I have tried but it always throws an exception

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Unable To Add Values In Second Combobox

Oct 27, 2010

Here is my code.

for example TextBox1.Text= 12,34,45,67,67
Dim process_string As String() = TextBox1.Text.Split(New Char() {","})
Dim process As Integer

[Code]....

i want to add values in reversed order in combobox2 that are available in combobox1
but when i run the application the second combobox remains empty and not showing any value.

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Updating Values In Combobox In .net?

Mar 17, 2010

When I update but do not really made any changes to the value and press the update button, the data becomes null. And it will seem that I deleted the value.I've taught of a solution, that is to add both combobox1.selectedtext and combobox1.selecteditem to the function. But it doesn't work.

combobox1.selecteditem is working when you try to alter the values when you update. But will save a null value when you don't alter the values using the combobox combobox1.selectedtext will save the data into the database even without altering.But will not save the data if you try to alter it.-And I incorporated both of them, but still only one is performing, and I think it is the one that I added first:

Dim shikai As New Updater

Try
shikai.id = TextBox1.Text
shikai.fname = TextBox2.Text
shikai.mi = TextBox3.Text

[code]....

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Adding Values From Field To ComboBox?

May 1, 2012

I'm using ms access 03 to fill a datagridview no problem. I have 4 fields(id, first, last, points), but I just want to fill one in a combobox I have. Here is what I'm using to fill the datagridview:

Dim con As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsPC #6My Documentsstudent.mdb")
Dim sql As String = "Select first,last,points from student"
Dim oledbAdapter As OleDbDataAdapter
Dim ds As New DataSet
[Code] .....

How could I get a combobox to just display just one field, like idk if I'm explaining myself correctly, like a SQL statement look like this:
Dim sql As String = "Select first from student" but just for my combobox.

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Basing ComboBox Values On Selection Of Another One

Mar 7, 2011

Is it possible to have a different selection of values in the 2nd combobox depending what was picked on the first combobox? For example an American state is picked in the first combo box and the second combo box loads the cities in that state? I'm just using a basic form in Visual basic 2010 there is no database behind it.

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Binding Combobox With Concatenated Values?

Jun 3, 2011

My code is:

sqlsub = "SELECT distinct field1, field2"
sqlsub += " FROM tbl I
Dim da As OleDbDataAdapter
Dim lsdataset As New DataSet

[code].....

My prob is how should I bind the combo with field1+"("+ thpr+ ")" thpr is the string i get from function by passing field value 2 from query my combobox should be displayed as field1 + (thpr).

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Checking Combobox Values In Datagridview?

Nov 4, 2008

I want to check if two combobox values are equal. The comboboxes are in a datagridview.I found you need to use datagridview_EditingControlShowing to add a handler to the comobo boxes for selectedindexchanged. I can do this with this code.

Code:
Private Sub dgridRegisters_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles dgridRegisters.EditingControlShowing
Dim combo As ComboBox = CType(e.Control, ComboBox)

[code]....

However, the message box comes up for every combobox in my datagrid when I change the index, not just the cmbPort2. I would like to have something like this...

If cmbPort1.selectedindex == cmbport2.selectedindex then
'do something
endif

..but it doesn't seem possible.

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Checking Text To Values In ComboBox

Jan 22, 2009

How I could go about checking a typed value in a combo to the values in the combo box. I am making a system to select lockerID and Supplier ID I want the user to be able to enter the value in the combo box as well as select the value form the list in the combo box. Here is the code I have been trying.

If cboStockID.Text = "" And cboStockID.Text <> cboStockID.Items.ToString Then
MsgBox("Please enter Stock ID")
Exit Sub
ElseIf cboSupplierID.Text = "" Then
MsgBox("Please Enter Supplier ID")
Exit Sub
End If

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Combobox Is Displaying Null Values?

May 19, 2012

the combox is bound database table,but it is not displaying the contents of table in database,instead it is displaying corresponding null values(blank).it is showing just "select" and the blank spaces corresponding to the number of items in database

here is my

Function combobfill() As DataSet
addconnection.Open()
Dim selectstring As String = "select materialsname from materialtype_table"

[Code]....

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Combobox Not Updating Or Change The Values In It

Jul 9, 2009

I have a form with a number of controls based on those controls and a database i filter what data i want to be in AllowableHeightsCombobox. I am using an Arraylist to hold the data. The problem i am encountering is that after filling allowableHeightsCombobox once, it will not update or change the values in it. this is the only place where i change the AllowableHeightscombox's datasource.

[Code]...

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Combobox That Gets Its Values From A SQL Express Tabl

Jul 13, 2010

In a VS2008 VB project, I have a combobox that gets its values from a SQL Express table. This table has three columns. I want to display the value from one column in the combobox, and obviously the user will select from this. I want to then write the value of the selected record from a second column back to a different table, and I also want to change the value of a radio button (on the same form as the combobox) based on the value of the third column of the selected record.I'm setting the ComboBox.Text value to be the first column, the ComboBox.SelectedValue to be the second column, but how would I change the radio buttons in the most efficient way? If it was VB6, I'd probably make another trip to the database to find the value of the third column based on the selected value from the combobox. I'm not familiar enough with the tableadapter concept but I suspect I should use them to do what I need.

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Different Values Of Combobox On The Multi Same Form?

Mar 26, 2010

Is possible to have different values of combobox on the multi same form?

Actually I want to make a multi same form, but with one combobox to set the authority. When different persons to use this same form, I will have different selection limited on this combobox,

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Displaying Values From A Single Combobox?

Jun 6, 2011

the code display 2 colunms in one combo box from a table. i have table with 2 columns account_type and account_name. the account_type is an abbreviation(codes) which would be stored in a new table when selected. I want the code when the combo is click, would display the code-account_type and account_name in the same combo box.

Private Sub cboAccount_type_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboAccount_type.SelectedIndexChanged
Dim cn As New SqlConnection(ConnectionString)
Dim query As String = "Select Concat(Account_type, ' - ', Account_Name) As AccountDesc, Account_type from Accounts"

[code]....

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