DB/Reporting :: Use A Databounded Combobox For Control Customer Statuses
Mar 11, 2009
I have a very simple database project. I made some project before, and now I can't find the error in my project. So I have two database, one for customers, and one for customer statuses. I want to use a databounded combobox for control customer statuses. But this combobox isn't working. I made everything, like in my other projects, I used datbounded comboboxes before. I attached my project, and my .mdf file. Copy the .mdf into C: root. MY project's language is not english, but the whole project is very little.
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Apr 24, 2008
I want to print one of my databounded datagrid. I found this code in knowledgebase here: [URL]
Can i ask about this datagridprinter usage?
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Oct 4, 2011
I have the following problem: I select a customer from a dropdownlist and then the gridview should load all items of all orders of that customer. I have the following query:
Dim allorders = From ord In db.Orders
Where ord.CustomerID = Convert.ToInt32(CustomerDropDownList.SelectedValue)
[CODE]..............
I also tried to modify the query as follows:
Dim orderitems = From oi In db.OrderItems
Where oi.OrderNumber = (From From ord In db.Orders
[CODE]...........
But this does not work. I just started using LINQ.
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Oct 5, 2011
A registeration sys using a Microsoft acres database I have a table named customer info to store customer details when registering and I need coding that will add the following to my table customer I'd , firstname, lastname , phonenumber and user also has to make selection between radio buttons male or female.
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Jan 5, 2010
I am trying to autocomplete customer surnames direct from the Customer Datatable, using the code below which I got from another thread, but nothing is happening.
[Code]...
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Mar 26, 2008
I have Combobox "Combo5" with a string value selected by the user.
How would I assign that selected value to another variable that I want to use later on or how od I refer to a combobox value that is currently selected?
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Feb 20, 2012
I have a tab control application, each tab loads a particular user control and each of those user controls will then add other user controls that are used amongst other the user controls. For example, I have an "ucQuotes" page and an "ucInventory" page, when the specific tab is selected, the "uc****" user control is loaded on that page, and in the case of "ucQuotes" and "ucInventory" they both use a control called "ucPartNumber"; a user control consisting of a combobox, textbox, and button. I have no issues reusing the shared user controls, in this case. My problem arises with my "ucQuickPrice" control, as it is always present at the bottom of the tab control form (separate from the tabcontrol, but on the same form), and it too uses ucPartnumber.
Here's my issue, as I type into the ucPartnumber combobox, the text I type does not appear in the combobox, it appears in the textbox of the ucPartnumber control that is being used on the tabcontrol page. There are no shared instances of ucPartNumber, nor do I have this issue between typing on one tab page and the text showing on the user control of another tab page.I tried just creating the ucPartNumber controls on the ucQuickPrice control, not adding a new instance of ucPartnumber on the .Load event, and the issue persists.
The combobox(s) in question are bound programmatically with about 40,000 items, ".datasource = dataset.tablename" not to a bindingsource. Autocomplete is set to none, I added code to utilize tool tips and the basic combobox filtering functionality. Is this a bug, or is there something I'm neglecting? I'm about 95% complete with this application, and this just happened today. I made the decision, to just reuse the ucPartNumber control on the ucQuickPrice control (originallly it's size and orientation would not fit, but I added some coding to detect what parent is adding ucPartNumber and to change its appearance accordingly). Before, I made this change, I did not have this problem. And, in trying to go back to how I had things set up before the change, the problem will not go away. if the whole control within a control verbage I used is a bit confusing, let me know and I'll try to better explain what is happening. At this point, I'm going to close and reopen vbexpress, as when I started this ordeal, vb started acting weird and wanted me to save all my work, it usually does this before locking up.
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Jan 19, 2010
In a manufacturing environment I'm using an Access database to store properties of manufactured parts. I've queried a table to fill a datatable, which then populates the attached form.
[Code]...
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Dec 15, 2011
I used this code:
Code:
Friend Sub PopulateCB(ByRef mycontrol As ComboBox, _
ByVal expressionSQL As String)
' DMBD is my data-handling class:
[code]...
Nevertheless, mycontrol remains empty after this.
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Mar 10, 2008
I have a combobox that is bound to a database.After I click "New Record" to insert a new record, I want to default to the first item in the Combobox list. This will speed up user input.any ideas. I have tried most ways but this should work correct:
cmbAssetLocation.text = cmbAssetLocation.Items.Item(1)
But nothing throws an error.
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Jan 31, 2009
I have VS2005, Microsoft Access 2003
ComboA is binded to the Customerstbl and displays the CustomerNames. ComboB is Binded to the CustomerContactstbl for the selected customer above and displays all Contacts for that customer is a second cbobox.
I am having a hell of a time with this, When I select a customers name in ComboA, I want ComboB to automattically query the contacts in ComboB based on ComboA's selection. where do I create the query for getting the contacts for that customer?
In the Customer or Contacts tbl?
Is this something that would be better hard coding or is VS2005 that much improved that its ok to use these binding features?
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Apr 17, 2009
populate a simple combobox with a query to a MySql database. I Just want the combobox to show the results of the query:
SELET DISTINCT models from Cars
I am using VB 2008 with Datasets, how can I achieve this?
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Aug 4, 2009
There is a connection in my program to SQL Server and there is a query which is bound to a combo box, to pull out values from the database. For some reason, I get an error message during run-time, saying that the syntax is incorrect.
Here's the query:
'The SQL Command to be executed:
projs = New SqlCommand("use " & Me.ComboBox1.Text & "''" & _
"go" & _
"select name from projects where condition = 'Y'", cnn1)
cnn1 is the name of my SQL Client connection.
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Mar 22, 2009
I'm currently coding an ATM system in VB, and when a user picks a card to 'log on' with, they have 3 attempts to log on before the card is confiscated. The card numbers are in a combobox (which are retreived from an SQL database using the DataAdapter), and each card has a boolean 'confiscated' field in the database.
[Code]...
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Jan 21, 2010
i make this code to achive what i need[code]but in datagridview what i make when i want to convert to use in dgv
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Apr 3, 2009
I'm running into a little problem making one combo box dependent on the selection of another combo box. I'm using a access back-end to this project. I have two tables: MajorCategoryTbl and MinorCategoryTbl , MajorCategoryTbl has PK and description field, MinorCategoryTbl has a PK, MajorID (foreign key), and description field. I have two combo boxes on my form, one that displays the Major description, and one that displays the MinorCategoryTbl description, but the stored value is the PK for both. I want the selection of the minor category combobox to depend on what was selected in the major category combobox.
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Mar 18, 2008
How Do I show the values from the dataset to the text box based on the selection from the combobox list i already populated the combobox my code is. [code]
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Oct 6, 2008
At work we have this really old excel spreadsheet with movable points in it.This feature no longer works in '07 so I have decided to try and make a VB form to replicate it's functionality.I have the concept down of what I'm gonna do, I'm using sliders for the movable points and I'm using a data grid view for all of the numbers they are just going to type in, and then I have a button that saves all of the data to the database that it links with.I've figured out how to get everything working except the button that saves the data. So there are 4 separate databases attached to sliders and another one that is part of the data grid view. What am I going to have to put into that button under the click event in order to make it save the values in all of these databases?
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Dec 20, 2010
I have a datagrid that I use to display data from a SQL 2000 table. I am trying to write back any changes the user makes to the datagrid data back to the original table but don't know the proper method to do this.
[Code]...
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Jun 3, 2012
i am using webbrowser control as reporting tool ( instead of exporting the data to excel or other COM interface )i have built some HTML table structure and rows headings etc.
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Apr 9, 2008
A portion of my code is below. I am making a database application using FlexGrid and an ADO Control. I get errors on the statements following .saying that "Overload resolution failed because no accessible 'Fields' accepts this number of Arguments". Can someone explain this error and also a fix for it? I am using Visual Basic 2008.
[Code]...
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May 31, 2008
I have a parent form that has a combobox. Whn the form loads I get the data from the db and bind to the combobox. that works fine and here is the code I use in form load to cause this to happen: [code] Now if there is not an Account Type, I have a button that will pull up a small form to allow the addition of an account type. The popup form adds the data back to the database just fine, but I am now trying to get the combobox to refresh its data. So I call a public Sub that is located in the parent form to from the popup form to accomplish this task and I have walked the code and the sub is called and appears to work correctly, but the new data never appears in the combobox. Here is my public sub that i call to try and refresh the combobox on the parent form. [code] But when I go back to the parent form, the combobox is not updated with the new account. How can i get the combobox to refresh from the database with the new data?
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Apr 27, 2008
I have just installed VB.Net 2005 to do my Uni project at home.Why cant I find the Data Control in the the tool box and nothing when I press CTRL and T..I need to define the ado control name but having no luck as yet.
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Apr 20, 2008
I need to display a graphical representation of database(access) in vb 2005. is there any way to do it. I dont mind how I just need to display barchart but data is in Ms Access.
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Mar 31, 2011
I am creating a reporting app that pulls information off of a Sql database and populates the data in a datagridview control (DVG). I am using tab pages (Tabcontrol), and I have about 10 tabs with within the control. What I have done is created a dynamic control that will populate in each tab page once the tab is selected. I am using a split container and in my split container.panel 1 is where all my buttons and search functionality will be. In my split container.panel2 to is where the main DGV control will be. I have got this to function properly, however now I am unable to add anything to my split container.panel1. I would like to add diffrent labels and buttons in the panel1 one without putting another panel on top of the split container.panel1, and also if i do this when I resize my container the panel will just sit there. I am using the selected index changed event to get my split container to show in each of the diffrent tabs
Private Sub searchTab_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles searchTab.SelectedIndexChanged
searchTab.TabPages(searchTab.TabPages.IndexOf(searchTab.SelectedTab)).Controls.Add(splitContainer1)
[code]...
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Oct 7, 2010
I have an issue with a combobox control highlighting the wrong item when the dropdown menu is clicked. This occoured first in a project so I tried to reproduce it on its own and indeed it seems to be a problem with the control itself.If there is an item in the list above the selected item that starts with the same characters at the selected item, the combobox will hightlight that item.eg. If you select an item on the 5th row 'XX' when there is an item on the 3rd row 'XXG' then control will highlight the 3rd row when the dropdown menu is clicked again not the 5th row - even though the control shows 'XX' and the selectedindex is 4.This can be recreated in Visual Studio 2010 / Visual Basic:In a blank windows forms project create a single combobox control (ComboBox1) and paste this code:
Imports System.Data
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code]....
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Feb 3, 2010
If have a control that acts like a record selector from a database, say, for example, customers. The control must act in certain ways allowing the user to type the name, the alias or the code of the customer, and the control will select the correct one, or offer a list of possible candidates, and other behaviors. I have tried to inherit from ComboBox, but there are some ComboBox behaviors that make it difficult or impossible to do what I want, so I'm better starting from scratch, with a TextBox and Button.
The questions are: Do you know some open-source component so I don't have to start from zero? Have you already done something like this and want to share methodologies or tips? Am I good with a TextBox, a Button and a PopUp control?
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Dec 9, 2009
I am trying to create a sub routine that I can use to clear all items on various ComboBoxes on a Form; this is the code I was trying to use [To no avail]:
Public Sub Clear_ComboBoxes(ByVal ComboBox_Name as String)
if Controls(ComboBox_Name).Items.Count > Nothing then
Controls(ComboBox_Name).Items.Clear
end if
End Sub
I am writing the code on a seperate module to the Form; which means I can't use ME.Controls; but Form_Name.Controls doesn't seem to work either.
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Dec 15, 2009
ok, so what i need to know is how to control a combobox which is into the web page I want to know how to control the combobox into the webpage, change the selected option and so.
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Feb 25, 2010
I'm trying to create a ComboBox control with a TreeView style. I have been giving a link to an article by MSDN forums which include a sample as a starting point. [url] I downloaded the sample and convert its C# code to VB. The sample is a windows forms application so I moved the controls of the sample to a new Windows control library. I also modify and added some of the code to try to make it the way I want. Now I'm facing a problem with this control and I need your help to understand why it not behaving the right way. I'm trying to learn and build a ComboBox with a TreeView style.
The control inherits from the windows ComboBox control and when I place it on a form for the first time it look exactly as a CompbBox control but once I run the application for the first time the control appearance become deferent and it's not drowning its self as the windows ComboBox do. When I try to expand its width by dragging one of its sides by the mouse it doesn't work properly. I struggled understand why its behaving this way and how I can correct this behavior but unfortunately I couldn't. [Code]
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