(I'm using VS2005)Instead of using a bindingnavigator, I'm setting one field as a databound combo box with the display member and selected value set to the field.Then the other fields are text boxes and change based on the selected value of the combo box.The problem is that when I run the app, the form won't close.
View 6 RepliesI have a combo box which is databound at run time & I need to iterate through it to get all the values in it (not display items) & then add these to an array or collection.
View 2 RepliesThis ought to be relatively simple... I have a Jet database that contains the table of interest, tblCategory. tblCategory has three attributes of interest for this issue: fldCategoryID, fldParentCategoryID, and fldName. There is a self-join from fldCategoryID to fldParentCategoryID (one-to-many). On my form I wish to have a combobox display all the categories available (shows the fldName attribute of tblCategory) and assign the selected value to fldParentCategoryID.
So, my form is based on a dataset that is attached to tblCategory in the normal way. That works just fine. To facilitate the combobox, I created another dataset that simply contains fldCategoryID and fldName attributes and is non-editable - imaginatively named dsLUCategory (dataset lookup Category).
[Code]...
I was using a data bound combo box pretty well before, now on my new project i get this error:
Public ReadOnly Property DataConnectionString() As String
[code]...
Configuration system failed to initialize System.Configuration.ConfigurationErrorsException was unhandled
This is in Settings.Designer.vb I'm using VB2010
None of the Microsoft videos I have watched, or the other posts I have seen, have given me the pieces I need to understand this process. This is the one key piece of understanding that I need to finish about 4 different programs I have started in the last 2 years. All of them key on understanding the following processes:
View 1 RepliesI have a combo box that is bound to a dataset using the IDE. When I add a row to the table it does not reflect the change in the combo box until after I close the program down and restart it back up.To update the underlying table I open a form from the main form and ask the user for information to add.Then I call the following function to add the info.[code]My binding source for the combo box in the IDE is set to Tb lDrivers BindingSource which gets its info from the above tblDrivers table
View 12 RepliesOn a Windows form, is there a way to have 2 combo boxes bound to the same bindingsource, but allow the boxes to display different values? The bindingsource is basically customer number and name. I want two combo boxes so the user can choose a starting and ending customer range. When both boxes are bound to the same bindingsource, when either combobox value changes, both boxes get the same value. I am using VS2008, .Net 2.0. Two bindingsources would likely work but seems highly inefficient since the data is the same. The list of customers could potentially be 50,000 records or more. Is there a better way to implement this range option besides combo boxes?
View 4 RepliesVisual studio 2005 - vb.net..I have a user control on a form containing 15 combo boxes.All contain Y, N, and blank (for Yes, No, or blank) in the Items Collection property.Each of the combo boxes have a binding source to the same table, different fields.When you select a value Y, N, or blank for any of the fields and do a save, the values save while the application is open.Once you close and reopen, the values are gone.It appears the dataset does not recognize the change, so the values are not getting stored in the database table. Is there something I can do or put in one of the events that would identify this as a change.
View 3 RepliesI have an Address Book project with a listbox. The listbox is bound to the database via the little arrow pop-up box in the corner of the listbox. I have the DisplayMember set to FirstName, and obviously only display the First Name of the contact in the ListBox. Is there an easy way to change it so that it displays the First and Last names? I can't change the binding because I need it to get the ID of the record selected.Here's the basis of my code...
Private Sub MainForm_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'CompanyDataSet.Contacts' table. You can move,
[code].....
I want it so every time I click an ITEM in the Listbox it displays ALL the data into the textbox. I know there's an easy way using table adapters and binding the listbox, but I'd prefer to do it this way for my project.
So this is what I got.
Lst.DataSource = ds
Lst.DisplayMember = "tblStudent.FirstName"
Lst.ValueMember = "tblStudent.StudentID"
[code]....
It only adds the first rows details to the text box when I click the second record the first rows details are still there.
I have a drop down box that I want bound to "TicketBindingSource - InvoiceStatus". However I want to have the text bound only. The choices I would like to specify from my own list (Invoiced, Needs Invoice...) When the user clicks on a choice I want it to update the database. [code]...
View 22 RepliesI have a data bound combo box which i want to open at a certain row in the table
i can't set the selectedvalue because it is databound
I want to allow blanks in BOUND textboxes that are bound to int and money columns.
It's not letting me - apparently it knows to force digits...
Is there anyone who can tell me the code for the below? Receive a lower bound and an upper bound of a range. Also receive a number of random numbers to generate. You must validate
1) the numbers are integers
2) the lower bound is less than or equal to the upper bound
3) the number to generate is positive (i.e., > 0).
Generate this many numbers in the specified range and keep track of how many of each are generated in an array of counters. Once all the numbers have been generated, display in a List Box the number, the raw count data, and the percentage of how many times the number was generated displayed with two decimal places of precision.
I've got a simple upload form. Here's my code:
<form id="Form1" method="post" enctype="multipart/form-data" runat="server"
<asp:label id="lblMsg" runat="server" CssClass="msg" />
<span class="msg">Select Gallery:</span>
[Code].....
I have a dgvAssetsSummary which holds data queried from the database, it hold's the AssetType column and Total column, it's grouped by AssetType, giving a summary of all the totals and what assettype they belong to.I'd like the Total column to be formatted so that there are no decimals and with commas, at present each total has four decimal places and no commas, this needs to be able to be read easily by clients. I've tried using the following code to format the column after I query the database, but to no avail.
dgvAssetsSummary.Columns("Total").DefaultCellStyle.Format = "#,#"
how to do this, I've had a bit of a look around but I can't find much. I'm currently looking at a couple of pages from the msdn library about it.
I have some custom code in an extender that can be enabled on textboxes to determine whether or not to display scrollbars based on font, size, and textbox size. It works great, so long as the text box isn't data-bound. Once it is data-bound, I get some weird behavior. The text suddenly selects when the scrollbar is turned on. I am using VS 2005, VB.NET.
[Code]...
I have a class which I'm binding to a series of textboxes, date pickers and so on. When I change text in the text boxes, the object updates just fine, and when I then save the data, it has the changes. My problem seems to be with the RTB ... if I bind to the .Text property, it works just fine and updates like any normal text box. However... when I bind to the RTF property... changes to the object don't happen unless I first click out of the RTB... quite annoying. If I edit the text or change the formatting, and hit the save button, the changes don't get reflected in my object. I've even tried using debug statements to track when the property is changed, and I'm not getting the results I desire.
View 7 RepliesI have a DataViewGrid1 that has two hidden fields that the user cannot view. Code and Name.Code is a primary key field and must be manually set prior to inserting into table. It is currently giving me an error saying that code cannot be NULL. The following is the code that I have:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.SIZERUNSTableAdapter1.Fill(Me.Corkys_ProdDataSet.SIZERUNS)
[code].....
I have a few bound data controls on a form. However, there are certain data fields in the same table from which this data is coming from which I would like to be able to access in memory but which is not bound to a control. I have tried looking through the properties of my datanavigator, my dataadapter and my databindingsource and can't seem to find out how to sort this.
In simple terms, I have a data navigator to iterate through various fields in my dataset. I want to be able to access to the contactID of the currently visible / selected contact. The contact ID exists in the data source but I do not want to show it, just access it. How do I do so without issuing a manual SQL call to the database again?
I am a programmer from Uruguay. I have read the other similar questions about my problem, but nobody has given the answer I need. I use VB .net 2005 and its datagridview. I bind it to a dataset which is populated with a table of MySql. And when I sort the numeric columns, it sorts them as string, not numbers. I have tried casting the data to integer in the sql statement, but it doesn`t work. I changed the format of the column of the datagridview to single or long but it didn't worked either. I really can't believe it is happening, it is a so common need! I thingk It should be totally automatic.
View 12 RepliesBelow code creates a set of comboboxes which are bound to the data table. This works almost fine with one exception. Whenever i change selection in one of these comboboxes, any other combo changes it's selection too.[code]...
View 4 RepliesI have a datagridview control that will be used to allow the user to input records. The control uses a combobox column to select a type of service. There is a rate associated with the type of service that I then want to display in the grid. The user then enters a quantity and the last column mulitplies the rate and quantity to get a total. I have the combobox , quantity and total columns figured out but I don't know how to get the rate column to automatically be selected when the type of service is selected. Below is the code.... sets up the datagridview
Dim dv As New DataView(LookupManager.Lookups.LookupServiceType)
Dim Column1 As New DataGridViewComboBoxColumn
With Column1
[code].....
Assuming rnameTxt is a textbox and is bound to a field is a DataSet named "TableData".
rnameTxt.DataBindings.Add(New Binding("Text", TableData, "Customer.rname", True))
I have a form developed using the Dataform wizard (VS 2003). The Form shows Master-Detail data. The details are showen in a Datagrid. The form automatically loads the data in the Form_load event. Now I want to store the data from the datagrid to a datatable. I am using following code to get the details showen in the datagrid into a dataview. The objdsInvoice is the dataset that holds the Invoice And Invoice_Item data.
Dim DV As DataView
Dim tempDT As DataTable
tempDT = objdsInvoice.Tables("INVOICE_ITEM").Copy
[Code].....
Is there any better way to get the datagird values that are currently displayed into a datatable. The datagrid is bound to the details table in the Master-detail type dataset.
Is there a VB.net function that tells me the data type (e.g., DateTime, Integer, Varchar) of a bound textbox?
View 4 RepliesHow to update data in a table bound to a datagridview? Using Visual Basic 8.
View 1 RepliesI have a form which has my main data. On the form is a button to open another form called AccountNotes.
The table keys are as follows:
tblAccounts
pkAccountID
AccountDetail
etc etc
tblAccountNotes
pkAccountNotes
NotesDetail
fkAccountID
When I open the form AccountNotes how do I ensure it is tied or bound to the main form record I am viewing?
I have a windows form with multiple TextBoxes that are bound to a DataSet of type XML. I load text into the textboxes using DataSet.ReadXML method in the form's load event.
I have another windows forms application which edits the XML contents in that XML file.
How do I force the textBox controls on this form to refresh once the XML datasource file items are changed?
I have created a search/query facility after watching one of Beth Messi's videos. I notice that we can convert the textboxes on the auto generated search toolstrip to buttons, comboxes, etc. So, when we wanna search for a data in the datagridview, we enter a keyword. I wonder if it is possible to change the textboxes to comboboxes and make it bind to the datasources, so that users can use the drop down, instead of typing?
View 6 Replies