Replicate Select Number Of Comboboxes
Feb 24, 2009
I have not worked with VB in so long that I might as well be a newb.I know this can be done, and if I remember correctly, it is fairly simple, but for the life of me, I can't remember how.I have a textbox that will be used for entering a number.I have a combobox with a list of precreated options.I need to create the combobox as many times as the number entered in the textbox. Essentially I'm creating a list of items, the number of which is determined by the textbox value, the values of which will be chosen from the comboboxes. This means that the comboboxes all need to be linked as a group with sequential numbering.
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May 13, 2009
I have 5 combo boxes all connected to a database by datasets.
The user should be able to select different items but for some reason when one combobox item is selected, the same item becomes selected for every combobox.
I haven't coded anything regarding the cbx's so why is it doing this?
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Apr 7, 2011
I need to build a SQL statement.
I have 3 ComboBoxes that i need to use for my SELECT statement. This means that if the user selects ONE of them the SQL statement will be different than when he chooses TWO or THREE.
If none is select, then ALL data is displayed.
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Feb 15, 2012
I am having a problem with the if statement that I created in my code. The condition should be:
- Select Both Comboboxes (1&2) to print out a text in TextBox1
- If only One Combobox or No Combobox was selected, an error message appears and Nothing is printed in TextBox1.
The code I wrote did not function as I wanted. It prints out a text after I select Combobox1 which isn't the way it should be. [code]
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May 12, 2009
I have a windows form on which there is a textbox and a command button. When user inputs an integer in the textbox and clicks on the button, the userform grows and adds that many number of comboboxes and textboxes in a panel.
how to add variable number of comboboxes and textboxes at run time.
The maximum value of that integer would be 10.
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Mar 29, 2011
i am trying to auto select the email value from a 2nd cbobox when the user selects a name from the first cbobox using the first cbobox's index. (the values all line up with each other just fine)This is my current code:
Private Sub cmbAnalyst_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmbAnalyst.SelectedIndexChanged
theAName = cmbAnalyst.Text
[code].....
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Apr 24, 2012
this is a subset of a previously posted problem, I have narrowed down my issue and am reposting a question from this thread: [URL] I have apparently confused the compiler by renaming some comboboxes in Visual Basic .net express? (See relevant code below) I think the confusion is in who should handle what, with two routines named with variations of ComboBox1 and one handling the other ( it confuses me just trying to interpret it mentally):
[Code]...
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Oct 28, 2011
I have a form with 4 comboboxes and a button. The first combobox is enabled, but the rest of the controls are disabled. When the form is opened I fill the first combobox (cbxMethod) with a datatable. When the user selects something in cbxMethod the next combobox (cbxStudy) will be filled and so on. When the last combobox (cbxAnalyte) has a selected value I want to enable the button and give it focus so the user can move forward with the program. I basically want to force the user to move from one combobox to the other, until all are filled.I am currently using the SelectionValueChange event, but this event only fires when the user changes the value with their mouse or hits the Enter key, not when the user hits the Tab key.
Public Class frmCalculatedAnalyte
Private cv_dt As New DataTable
Public Sub New()
[code]....
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Feb 5, 2010
I would like to bind a DataGridView to a different LINQ query every time (in order to reuse the same form/DGV for different queries), like this:
[Code]....
but the "Qry", and the number of comboboxes, and their field names would change every time.
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Jul 10, 2010
have string "super" May i know is there a function in vb where i can repeat the string like using the below code and return "supersupersuper"
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Jan 22, 2009
I have created data reports with Group. IF my group details are splitted in 2 pages (say page 1 has 5 records of the group and page 2 has 2 records) the i want to replicate the group header in the top of page 2.
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Jun 14, 2012
Suppose in VB.NET you have:
Try
Debug.Print("Trying...")
Catch ex as Exception
throw new Exception("Exception", ex)
Finally
Debug.Print("Finally...")
End Try
How would you write this using the "On Error Goto" construct? (please no questions asking why I would want to do this, just curious if it can be done).
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May 13, 2010
Does the IO.File.Copy method preserve file attributes? Especially, if I have a write-protected file, will the copy be write-protected to?
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Nov 25, 2010
I am building a winform project. It has 3 tabbed pages with 1 datagrid on each tab.I have customised the first datagrid to my liking and now wish to replicate this customistaion to the other 2 datagrids.What is the easiest/best to replicate the customisation code for Datagrid 2 and Datagrid 3. Is copying the code the only way and modifying it to point at Datagrid 2 & 3?
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Mar 11, 2010
I have a project where I need to add TabPages to a TabControl. I have a Panel with 10 checkboxes on it and I want to replicate that onto each TabPage as it is added.What I get is it is added to the first page, then when I add a second tabpage, the panel is moved there and not replicationed even though I used the (Add) method.
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Nov 19, 2010
I need to replicate the ping in command prompt. I'm currently using the following:
Try
If My.Computer.Network.Ping(mtbIPAddress.Text) Then
rtbLog.AppendText("Response")
Else
rtbLog.AppendText("Reject")
End If
Catch ex As Exception
rtbLog.AppendText("Reject")
End Try
But I need to get the same response as the ping in command prompt i.e..
Pinging www.l.google.com [74.125.71.104] with 32 bytes of data:
Reply from 74.125.71.104: bytes=32 time=240ms TTL=53
Reply from 74.125.71.104: bytes=32 time=313ms TTL=53
Reply from 74.125.71.104: bytes=32 time=256ms TTL=53
Request timed out.
Reply from 74.125.71.104: bytes=32 time=251ms TTL=53
How do I get the bytes, time and TTL?
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Mar 2, 2009
i have a website, and a combobox how can i select value number 3?
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Apr 9, 2009
Ive been trying to replicate a listbox type control that ive seen on applications such as: Limewire, excel, etc where there is a Heading in limewires case lets say name, that you can resize to how ever big you want the colomn name to be (like a splitter) is there a control I can easily add or should I keep on working on buttons and resizing =)
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Apr 4, 2012
I am referencing a project so I can create a messaging system on my website. [URL] how I would replicate this function in my dal and bll so that I can get the same output. In the example they use a datacontext. I mostly return datatables in frim my DAL.
public List<MessageWithRecipient> GetMessagesByAccountID(Int32 AccountID, Int32 PageNumber, MessageFolders Folder)
{
List<MessageWithRecipient> result = new List<MessageWithRecipient>();
using(FisharooDataContext dc = conn.GetContext())
[code]....
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Jun 1, 2012
This update command works in updating my mysql database. Another database I have doesn't have a idnum field. I'm looking for a command to select a row number in the database. For example, update row #5. How would I modify this command?
SQL = "UPDATE " & table_name & " SET " & _
"title='" & TextBox3.Text & _
"' WHERE idnum =" & TextBox2.Text
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Aug 3, 2009
I am using it in conjunction with SQL2005. I am trying to replicate some simple activex script to create a new excel file that can be used as a data dump from a database.
[code]...
I have changed the file location references to make it easier to read. I have googled all morning but cannot find something that helps me. I think it has something to do with references?
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Jan 18, 2010
I have a listview where I can show a tooltip over each item and displays fine.However, I can't replicate for a Button.
Private Sub AddListview()
Dim lView As ListView = New ListView
'enable it[code]....
I have tried all different variations, but nothing really seems to work. The tooltip flickers on the button, but is constant on the listview.
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Jun 4, 2012
trying to calculate the partitions for 8 portions, and putting in select statement for row number,something like,
If Not (dstotal.Tables(0).Rows(0)("totalrecord") = 0) Then
dPartition = CInt(dstotal.Tables(0).Rows(0)("totalrecord")) / 8
End If
[code]....
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Apr 12, 2011
how would you select a row in a datagridview if the number of rows = 1
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May 23, 2011
I have 25 labels (Label1 - Label25). How can i randomly make the background of 1 label blue?I can set a random number in a variable, but I can't find out what to do next. It has to be something like this:[code]
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Apr 15, 2009
If I have say 5 numbers: 1, 29, 53, 95, 103 What would be the VB.net code for randomly selecting a number of those 5.
i.e) The random number has to be 1, 29, 53, 95, or 103 and has to be randomly generated.
I've tried using the Int(Rnd() * 104), but I do not know how to make it choose only these 5 numbers!
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May 15, 2012
I am a bonehead for even attempting to write script. that's why I do as little of it as possible however I starting to figure out the vb doesn't know what i am thinking. so here is my code and my problem. I made an update form for a data set in my program My Main Data Gridd View is on Form1.vb and the update form is called EditLoad.vb. the data set is called I_FactorDataSet. When I select a loadID number and edit it in the EditLoad.vb form i click save and get an error of InvalidOperationException" "Update requires a valid update comand when passed DataRow collection collection with modified rows"
[Code]...
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May 25, 2009
I have a question about Select Case. My code (psuedocode) is this
[Select Case name
Case number
name=Remove(num, 1, " ") ]
What this needs to do is to remove spaces at the end of a number and lets say that the number would look like this "C12345" but what I want is for the number to look like this "12345". I have it as a hyperlike but for some reason when at the link in the code it had added some spaces at the end of the number and I do not know why. What I want to have happen is when the hyperlink is click that it will go right to that number but it does not. When you click it you have to go to the top of the page (where the http is at) to to the end of the link and back space. Once you have done that it will go to the page that you want.
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Jun 2, 2012
I am creating an application in Visual Basic '08 with four available checkboxes. Is it possible to limit the number of checkboxes you may select down to 2, and how may I go about doing this?
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Dec 7, 2010
I would like to select a number of rows from a table and out of those I need away of selecting a column from the last row?
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