Refresh ComboBox After Adding New Values Via A Separate Form
Feb 15, 2012how can i Refresh ComboBox After Adding New Values via a Seperate Form in vbnet.
View 13 Replieshow can i Refresh ComboBox After Adding New Values via a Seperate Form in vbnet.
View 13 Replieson a windows form i have a combobox called currency, it is populated by a table-adapter called exchan-gerate which is turn populated by a dataset called mydataset. on form load, i issue update commands to the back-end database that holds the table which populates the dataset - they work. if i look at the update to the combobox, they are not reflected until i exit and restart the app - then they're fine. further down the form load i've tried:
Me.exchangerate.Update(Me.DataSet.Currency)
Me.CurrencyComboBox.Refresh()
am i missing something silly to have the values in the combobox change and refresh at the time of the update to the database? as i said, an exit and restart of the app displays the accurate data.
I have picture boxes added to a FlowLayout panel and a ContextMenu strip (associated with picture boxes) with 'Add description' item.
When I right click on a PictureBox and select 'Add description', a new form pops with large preview of the picture and a text box to write the description.
How can I preserve the text written by the user on the new form, after it's closed, so if user wants to edit the description, he doesn't have to type it from scratch again?
I figured I'd have to store the description somewhere and load it into the form when user clicks on the same picture again, but how can I know what picture he clicked on?
I have a form with several tabpages. on each tabpage a datagridview and some textboxes or comboboxes. i add, delete and update truough this. i magaed to refresh the datagridview after adding something or deleteing or updating but i haven't managed to refresh the comboboxes and the other datagridviews.
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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?
View 4 RepliesI'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
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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.
i am currently making a project which is to make a cinema screen booking system. My main problem is that although i have most of what is working i need to find a formula to give the full result (overall price) in a label. My other problem is the fact that when i interact with my form certain things dont auto refresh when i change certain values e.g i change number of seats but it doesn't auto refresh the price or anything OR i click one discount then another but nothing changes and it keeps the old value.
Okay in my menu i have a CombBox (ComboBoxScreen) for choosing the film and there are 3 films to choose from in the drop menu each with their own price. I also have a Textbox (NumberSeats) for inputting a number of seats you want to book for chosen film. And lastly there are 3 radio buttons each with different discounts. e.g No discount, 10% off and 25% off. A formula to work out the overall price uses all three functions/tools above. [Code]
I need some help with coding that is attached to a reset button. I need it to reset the form's controls (textbox,combobox,etc.. to it's default values, but I can find what to use. I've found information on clearing the values which I don't want to do. I just want to reset them as if the form just loaded.
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I'll get straight to my problem - I'm currently coding in Visual Studio.I have a table (countries) with the columns ID | Name. The table is filled with around 28 records.I also have a form with 4 combo boxes (set up as 1,2,3 & 4) that I want the user to select. These combo boxes will display the names from the table countries. I then want to use the selected names in the combo boxes to Insert into their corresponding ID into another table. For example England would have the ID 1, USA the ID 2 etc.So, is it possible to have separate combo boxes that will give separate ID values but using the same table? At the moment I can't seem to find a solution.Eventually the form will have more than 4 combo boxes so I don't want to use separate bindingsources for each combo box.
View 5 RepliesI have several labels that bind to my query adapter and I need to update (not TO the database but FROM the database) as data changes on database by another application.I only need to either check data on my database that changed or reload the data.I'm using data set, table adapters and tableadapter.queryadapter to query data (tantalization) from my database.all I want is to refresh/ update this values on my controls in my windows form I'm using VB.NET on VS2010.
View 12 RepliesI have a few forms that have a lot of really intensive updating along with a great deal of user interface (text boxes, button clicking etc) Is it possible to open a separate form as a separate UI thread from the start up form that called it to "show" or open or whatever the new method might be?
View 6 RepliesI am using VB.NET together with ADO.NET to create a program. I have set my TableAdapters as needed and bound the correct tables-columns to my comboboxes.My problem though is this:My combobox2 item is bound to a datatable. The table adapter's Fill method (the select command basicaly) includes a public variable in the where clause to fetch the correct results. I ll put some code here to clarify it a bit more.Public Class Frm_inv
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how to load the combo box'values from one form to another form's combobox
Example:
form1:
cust(table name)
no(textbox)
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now i load the form1's name which is the combo values .. to form 2's combo box whixh is name of 'CName'
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,
Lets say i label "label1" , and 2 buttons named "button1" and "btnRefresh " [code]So , when user press the button 1 , the text will change. But what should i put inside btnRefresh to reload the forms ? and display the default label.text = "Form Load" ???
View 9 RepliesI have a databound combobox that displays a list of items, and I have a windows form that opens after clicking a button that allows me to make changes to the table that the combobox gets it's values from. When I make the changes and save them (successfully) and return to the parent window, the changes aren't reflected in the combobox. If I exit the app and launch it again the changes are reflected perfectly. I've tried me.combobox.refresh() on the forms GotFocus event, but no luck.
View 3 RepliesI have a combobox and a group of textboxes on a windows form. I'm using a binding source to bind a dataset from an access database to these controls. To add a new row, I'm adding a row to the dataset. This adds to the database fine, but on the screen, it adds the new entry to my form, but it also overwrites the textboxes of what ever item was currently selected with the values of the new row I just added. If I quit and re-enter the program everything is correct.[code]...
View 5 RepliesFor some reason, the following code is causing me some issues. This code pulls lockout status data from AD and contains the data within a datatable. An event is raised from the threaded procedure to add the data to a listview control. For some reason one row of data gets added to the listview control and when you run the procedure gain, 2 rows of the same data gets added, and then 3 rows, etc.
This code calls the procedure "CallGetUserLockout"
GetLockoutStatusToolStripMenuItem.DropDownItems.Add("For Current User - " & User, Nothing, AddressOf CallGetUserLockout)
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i add data in run time i could not see it in datagride till i have to close application and open it, so how can i do a refresh for datagrid just after adding data
View 17 RepliesI have combobox binded to binding source (NastavniciBindingSource). I wan't to refresh combobox when I add new data.
Dim str As String = InputBox("Enter name:")
Me.NastavniciTableAdapter.Insert(str, "", "", "", "")
Me.Validate()
Me.NastavniciBindingSource.EndEdit()
Me.NastavniciTableAdapter.Update(Me.StudentDSET.Tables("Nastavnici"))
' here I need the code to refresh combobox
I just had a question because I cannot seem to find the answers anywhere on the internet... also we are not upto this part in class yet.. Say I have 2 combo boxs... cmb1 and cmb2.. both are datasets from an access table.. how do I make it so cmb2 refreshes based on the value of cmb1? eg; if cmb1 is say, period 1, then i want cmb2 to only show results bases on items I have in period 1?
View 2 RepliesI have a datagridview (datagridview1) on my form which onload displays all the records from the bindingsource (bindingsource1) via an sql connection to a table in sql server called "article".
I also have a combobox on the same form which displays the name column from the same "customer" table -
Me.ComboBox1.DataSource = customerTable
Me.ComboBox1.DisplayMember = "custname"
Me.ComboBox1.ValueMember = "custid"
I would like to enable my combobox to filter the datagridview via itsSelectedIndexChanged event . So if custname "xxxone" is selected in the combobox then the datagrid shows only the results for custname "xxxone".
So far I have worked out how to enable the combobox to move to the position in the datagridview depending on which custnameis selected-
Me.myBindingSource.Position = Me.ComboBox1.SelectedIndex
But this method still shows the other titles,it doesnt filter them out, it just points to the selected custname. I cannot find how to filter the datagridview so ONLY the selected custname is shown.
I will be changing the field names, I have used custname and custid just to describe what I am trying to do.
I read the other threads but i didn`t understood and none of the codes worked.I`m using VB 2005 and SQL Server 2005. I have 1 form with a DataGridView bounded to the table Produse and 3 texboxes and 1 Save button.
In the save button i`ve putted the code :
Using con As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=H:ProjectsWindowsApplication1WindowsApplication1Database1.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True")
Try
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The code works fine , it saves the data i`ve enterd in the textboxes , but in order to view the changes in the table i need to restart my application to see the changes.
I am trying to create a simple Word doc that when the user presses the button it takes the information in the boxes and tosses it into a template style paragraph. But my issue is that I have two combo list boxes as seen in the picture. I want to have two values in the drop down list as seen in the labels next to them but for the life of me I can't figure out how to do this in Word 2007. In Visual Studio this is much easier but I am work and need to snap this out for the folks at work. Is there an option that I can choose in the properties where I type in the values for each drop down or do I have to add them in at run time?
View 1 RepliesI am trying to make a simple smtp client and I would like to have it so it can add more then one recipient to the emailso I wanted to learn how to split a string using delimiters. I have only used delimeters in batch with a FOR loop but I don't know howThis is a sample I found on the net.
Private Function SplitStringIntoWords() As Integer
Dim strComplete As String = "This-is a complete sentence"
Dim strWords() As String
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I'm using VS2008, VB.Net and WinForms. I cannot get the combobox droplist to display the most recently added item unless I quit the app and restart. I've searched thru several forums for answers but cannot get any to work for me
Private Sub cboSpecialty1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles cboSpecialty1.KeyDown
Dim objCommand As SqlCommand = New SqlCommand
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Is it at all possible to reset the existing set selected index properties for a combo box?or example if the user selects the first selected index option an action occurs, the combo box then loads in another set of options and the selected index properties are then resetIf the user then selects the first option in the combo box again, it will perform a different action to the previous one.
View 2 RepliesI have a class, called myClass.vb. I have a sub in it. this sub has a string variable, which has got some value. Now, i want this value to be transferred to the button_click event of a very seperate form called myForm.vb.
View 3 RepliesI've got a variable which contains a string like: dim test as string
test="bjcbhiabab,1,1,50,0,1,telepathie2,1,60,0"
Now I need to seperate all those values (each seperated by a comma) into new variables let's say value1 to value9 What's the most easy to use coding for this? I haven't got a clue which coding to use for this :S
I have been trying to find out how to do this for days now, so I am finally asking how. I am newish to programming. Here is my problem.
I am trying to extract x,y,z coordinates from a text file arranged as such:
x,y,z
x,y,z
x,y,z
etc.
I need to be able to extract the x column into an array, the y into an array, and the z into an array. I learned how to pull it into a string, and how to split for every line, but i don't know how to split after each comma and separate them.