I'm posting a new thread to ask the following. I've added into a datagridview control a column that has DatagridViewCombobox style, in order to display specific values. Here is the code.[code]...
View 8 RepliesThe code below works as it is now. It creates a datagridview with a combobox on it. The combobox updates a common field called personid.
My problem is I need to add a new column to the left of the combobox. If I just add this field to the sql (right after "SELECT") for the dgv it doesn't work. It does work if I put it after the combo but I need to have this column to the left of the combo.
How do I go about doing this? The dgv is created entirely in code and this cannot be changed.
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I have a datagridview with datagridviewcomboboxcolumn bind to a nullableinteger datatable field
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I have a DataGridView that has a column defined as a ComboBox. When I select a value from this ComboBox, I'm not sure which Event I need to check. Ultimately, I need to read a DB Table to retrieve data based on the value selected from the ComboBox.
View 2 RepliesI have added a DataGridViewComboBox to my DataGridView during design time. It has 0 items in it and I need to add a bunch of items to it during runtime.
In most controls, they have some kind of direct method like ".Items.Add("etc")", but for the life of me, I can't figure out how to access the DataGridViewColumn programmatically.
I can create a new ComboBox during runtime and add it to the DataGridView, but that's not what I need to do.
I played around with IntelliSense, I've searched on Google and I've looked through the documentation. The only thing I could find on MSDN was DataGridViewControlCollection, but I didn't see anything that would allow me to directly access that control.
I have a DataGridViewComboBox in a dgv and I need to detect when the user changes the value....I thought I could use the CellContentClick; however, it doesn't fire when I select from the dropdown in my dgv so thinking I need a different method to choose from.
View 8 RepliesDoes anyone know how to trap f.i. the SelectedIndexChanged event in order to read the SelectedValue from the ComboBoxColumn?
View 8 RepliesI have an issue with VS 2008 datagridview combobox control.
The combo box in question closes immediately after the CellValidation method that I wrote invalidates the input in the combo box cell. What I mean by closes immediately is that when the drop down arrow is left-clicked, once I remove my finger from the left clicking of the mouse instead of staying down so that the user can see the selection options the combo box just closes.
I'm currently using EditOnEnter as my EditMode style. (I've tried switching between the different option the same behavior exists). The datagridview is bound to a dataset which was created from my database in MS Sql Server 2005.
This problem exists on two different forms and occurs exactly the same way. I don't know what other settings to mention to help in the troubleshooting of this error, but please feel free to ask me any questions so that I may resolve this issue. By the way both forms use datagridviews tied to the same dataset, just different tables and table adapters.
box withing a modal form. The combobox shows a list of ingredients where the displaymember is the IngredientName and the valuemember is the IngredientID, and a user would select an ingredient in the combobox and the returning value would be the ID for that ingredient. My issue is that within this same datagridview, i'd like to prepopulate it with items already existing in the database. However i'd like to set the display value in the combobox using the id value from the database. So if "Pasta" was the ingredient name and 101 was the ID, i'd set the value as 101 and it display Pasta in the combobox.
Here's what i have so far:
For Each row As ListViewItem In listIngView.Items
Dim i As Integer = dgvIngEdit.Rows.Add()
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There is a multicolumn in datagridviewcombobox? what is code?
View 2 RepliesI am adding a DataGridViewComboBox Column to a DataGridView. The column is added But when I click onto the dropdown arrow, nothing show up in the cell.
Dim lstCol As New DataGridViewComboBoxColumn
lstCol.HeaderText = "Type"
lstCol.DisplayIndex = 0
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I migrated a project from VB 2005 to VB 2010. I have a datagridview binded to a dataset populated by the MySql Connector. One of the columns, with integer values, is displayed in a datagridviewcombobox type column. In VB 2005 it worked perfectly. But now, once migrated to VB 2010, the column doesn´t show anything. If I change the type a a textboxcolumn type, it does show the data. The column in the dataset is Integer, and the column in the datagridview is Integer also. But, strangely, although the value of the cell (when debugging) is Integer 1, the formatted value is String "" (empty). If I add integer items to the combo manually, the formatted value is the first added item, but still string, and not equal to the value property. It is the same whether the column is designed and added programatically or visually with the editor of the datagridview. It seems a bug in the combobox type.
View 14 RepliesI wanted to visualize to the user the diffrence if they opted for certain values. In mycase certain choises would show phonenumbers on intranet.To show how I wil leave the control names default. To recreate the the project. Start a windows form application, place a datagridview, and 2 bindingsources on the form To start we need some data to show and a list to choose from.To make a simple example I chosen to make a person class containing an Id, Name and Position.Id If the Position is a staff position it should be blue others should remain the default style.But lets start with the colorScheme Interface so we can store the colorscheme we want to show for a certain positionitem in the datagrdview It wil need back and forecolors but also colors for teh item whilst selected. To show the Displaymember we want to see I've also added the toString property that should shadow the toString of the object.[code]
View 2 RepliesThe form opens a simple form to accept a password if a name is selected from a dropdown. The form is opened modally from the validating event. If I select an item, fill in the password, close the modal form , it will not let the parent form close depending on how I exit the dropdown. When I look at the closing event cancel is set to true implying that the control still thinks it needs vaidating.
It works if i leave the dropdown cell in focus when I hit close.
If I click (even just once so the dropdown still is highlighted but just closed) on another cell in the grid the form will not close. It corrects itself if I repeats the first method.
Even worse if I press enter twice it crashes without going through any of my code when the grid tries to do its own commit edit on the editableControl but seems to have a wrong reference as it tries to use the DataGridViewComboBox as the editablecontrol and gets a cannot cast exception
Updated as I have found the cause.
The pop up password form is a home brewed modal form by disabling all open forms but leaves some menu items active.(mdi is used). It is the disable form that causes the issue. Without that it always works. So it seems the grid cant handle being disabled while changing cells.
A solution that works is to use ShowDialog but that changes the systems behaviour so I may not be allowed to do that.
Cannot get list box to display each increment and cannot get data to save correctly in order to display.
Public Class Projectile_Motion
Dim initialHeight As Double ' Holds beginning height
Dim initialVelocity As Double ' holds velocity
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I have a problem in timers, I want to display 2 forms each one after 3 and 5, how to do that? I mean when the first form appears, after 3 seconds another one will appear, then after 5 seconds the second will appear. I have a code where someone gave me here but its for message box only, thus I modify it to put a form still does not work. Here the code I put in the timer below:
Private Sub frmblabla_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
tmrnote.Start()
Private Sub tmrnote_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrnote.Tick[code]....
I still have problem when the message box stops, it displays all the forms together. All I want is when the message box stops, then it display the first form then stop to display the second then stop to display the last. The first form must stay for 3 seconds on the screen, then after 3 seconds the second appears then after 5 seconds the last appears.
In trying to test some graphic features, I am trying to get them to display on load so button doesn't have to be pressed. I used the following code as suggested from forum. Message boxes run but ellipses aren't displayed until button is clicked which is what I am trying to avoid!
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Button1.PerformClick()
Button1_Click(Nothing, Nothing)
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Im trying to make a custom splash screen , but i cant seem to get it to work. Im trying to display a welcome screen for 3 seconds then close and display form1 (main form).Heres my current code.
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i have to create a mortgage calculator (I know we have killed this mortgage calculator). Has to display an amortization table to display the list after doing the calculation. Here is the actual assignment:
Write the program in VB.Net (not Web based) and have it accept user input of the amount, term and interest rate. Display the mortgage payment amount. Then, list the loan balance and interest paid for each payment over the term of the loan. The list will be longer than the screen, so use loops to display a partial list, hesitate, and then display more of the list. Insert comments to document the program.
I have created 4 buttons. Calculate, Clear, List, and Exit. The buttons all work, but the list does not. Not sure what i am doing wrong.
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QuoteI would like to display my password from database (MS Access)into datagrid but in invisible. Below is my coding retrieve data from database, but my password is visible,
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = " & connectionpath
con.Open()
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i databind combobox with datasource ,set display member=name and value member=id....insert into datagridview and then id value are stored in database that is ok.actualy i want to display name in datagridview, not id and insert id in database ,not display name
View 1 RepliesI have a datagrdview with a large number of columns, but I want to always display it showing the most right handside data columns, as if the horizontal scroll bar was set to the far right - how do I do this?VB2005 starter
View 3 RepliesI do also want to know how can I Display Text on Pole Display. I write the code with VB.net 2008. Sample Code that I write is:
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I have a label that is supposed to display a word for 5 seconds and then move down the list in a text file and display the next word.I'm oddly able to make it work in random mode, but not going down the list in order.. random would be ok if used words didn't come up again.
Code:
Dim DurHold As String = My.Computer.FileSystem.ReadAllText(Application.StartupPath & "FlashWords.txt")
Dim DurDelimiters() As String = {vbNewLine}
Dim DurTextLines() As String = DurHold.Split(DurDelimiters, StringSplitOptions.RemoveEmptyEntries)
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my homework question is to display the selected items from a listbox (multi-extended) in a label. I need to display all the selected names in a label. the simplest most uncluttered way of doing this. This is what I've got but it doesn't work.
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i am developing a software using microsoft visual studio basic 2010. I set up a connection string to my server and take the data from there. I am using gridcontrolview and put my "product" table in here. It contain 4 column: systemid, system, actualid, description. I want to display only system column (it's easy, just hide the others column) But, In "system" column, there are a lot of similar data, i want to display only distinct data from this column in the grid
example, the column consist: STSTEM
topaz
topaz
topaz
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i try to user "add query", buat if i get rid of the other 3 column, there will be error message like "the output is different with the schema"
write the code to print to lblmessage:
"you won" if score is greater than or equal to 100 "Good try" if score is less than 100 and "practice more." if score is less than 50 i did it like,
if score => 100 then
lblMessage.text = "you won"
elseif score < 100 then
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I have a textbox on a form with an expression:
The expression is =DLookUp("[RestrictedView]","Seats","[SeatNumber]=[cboAvailableSeats]")
it returns the value 0 and 1 because feild RestrictedView in table Seats is Data Type Yes/No
How do I get it display Yes and No in the textbox of the form in Form View?
How can i get label1 or even a msgbox to display the results og this wmi function??Here the function code:
Public Function GetHDDFreeSpace(ByVal drive As String) As Double
If drive = "" OrElse drive Is Nothing Then
drive = "C"
End If
Dim disk As New ManagementObject("Win32_LogicalDisk.DeviceID=""" + drive + ":""")
disk.[Get]()
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I have a datagridview with several combobox columns.I've filled these with data from a database.But the combobox standard displays as empty. You have to click/select it and choose the right value.But what I want is that the first value is displayed and selected automatically. With a normal combobox you can do this by setting the selectedindex to 0.However this seems not to be possible with a datagridview combobox.Is there a way to display the first value anyway?
View 3 Replies