I 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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How do i delete a row from datagridview and datasource that is populated by a class file?dding of item goes like this, but not not sure how to delete the item.
Dim dt As DvdEzyDataSet.DVDCopyDataTable = DvdCopyDB.getDvdCopyByID(CInt(txtCopyID.Text))
Dim dr As DvdEzyDataSet.DVDCopyRow = dt.Rows(0)
Dim dt1 As DvdEzyDataSet.DVDDataTable = DvdDB.getDvdByID(CInt(dr.FK_dvdID))
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I want to sort the dropdownlist by date, but i cant figure out how.
ddate.DataSource = myTable
ddate.DataTextField = "ddate7"
ddate.DataValueField = "ddate7"
ddate.DataBind()
I have a database in MSSQL that I'm using in a VB.NET project. Three of the fields are dates, so I leave the default DateTimePicker as the means of entry. The problem is, when I make a new record, the date from the DateTimePicker only makes it to the database if I select a date. If I leave it as the default(today), then the information does not record, leaving a NULL in the database.
View 3 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'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 RepliesI 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 use vb.net and windows form and sqlserver
I added Data Source(Microsoft SQL Server (SqlClient)) to my project. and now I need to change it to ODBC Data Source .
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.
I am working on a media player, and I would like to setup a local playlist feature. I am using a single ListBox and its "Display-" and "Value-Member" properties. The display is the song's Artist and Name, and the value is the song's file path (i.e 'C:UsersUSERMusicetc.').To write the file path to the .txt file, I believe I can use the following code:[code]
View 18 Replieshow to create Quick info and/or parameter info for own code?
View 6 RepliesI am making a program, obviously, and I require some assistance. I found an explanation on how to read information from a Text file and have modified it for my needs. Here is my (modded) version:
Public Function GetInfo(ByVal playlistname As String) As String
On Error Resume Next
Dim PlaylistInfo As String
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I'm making a database app. I've finish the search, add new, and add function. What I'm trying to do is to expand the functionality of the add new item function.
View 2 RepliesI am trying to do is fill out a form with certain info, put the info into an array, and write it to a listbox using loops, arrays, and maybe a function if I need one. This is for VB2010 and here is what I have so far... I think there are ways to make it shorter but I cannot figure it out.... maybe just brain dead from all the coffee I have been drinking!
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under my project I have the following
However when I use this code.
lblABOUT3.Text = "Version : "
lblABOUT3.Text += My.Application.Info.Version.Major.ToString()
lblABOUT3.Text += "." & My.Application.Info.Version.Minor.ToString
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how to correlate info from a textbox based on a listbox item selection. For example the user will select an item from the listbox, enter say the length of a song in the textbox say 2:00 for song #1, select say song #2, enter the song time for that song say 3:00, click on song #1 again and have the same textbox display the length of that song and be able to do that until there are no more songs on the list.
View 5 RepliesI have a combo box and onload I want the combobox to be populated with data in a field from the database. However, when I execute I receive an empty combo box please could someone look what am doing wrong..
Private Sub populatecmbprojtype()
Dim cmd As New SqlCommand
Dim conn As SqlConnection = GetDbConnection()
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I am having a strang problem with button event handlers that I am creating at runtime.Actually if I set the form as startup form everything is working fine but when I set the main apllication form as startup form the events for buttons created at runtime are not firing.I am posting the code so that you can have a better look and see whts wrong?I have two classes under spotlight here "Class1" and "Grid"I am creating an instance of grid in class 1 and in a sub in grid I am creating buttons dynamically as follows and adding event handlers
For i As Integer = lIndex To uIndex
Dim btn As New Button
btn.Name = ds.Tables(tblName).Rows(i)(btnName).ToString
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In the code below in the btnAmountEarnedClick event, the lblResults is not being populated.
Private Sub cboRecycleSelection_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboRecycleSelection.SelectedIndexChanged
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I have several combo controls that need to be populated with a specific ID and name. I want the user to choose the name and have the ID in the background. Later when the data is exported from the database the specific ID's are exported and not the names.
I see that I can create the items in the combobox rather easily using their names. However, how can I associate the ID number for each of the items. Private Sub frmReceipts_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' Add receipt types to combo box
cboReceipt.Items.Add("Monetary")
cboReceipt.Items.Add("Inkind")
cboReceipt.Items.Add("NSF")
End Sub
I thought it would be better to have a seperate table with the different receipt types and then somehow connect/link the contents of this new table to the combo box on this form. However, I am at a loss on how to do this.
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I tried binding a DataGridView to a DataSet using the DataSource property but no data appeared in the DataGridView. I placed a DataGridView in an empty form, making no property changes except for the name. I did not create columns in the DataGridView. In the form's load event I placed the following code for loading a dataset named ds Executing in debug mode, I confirmed that there was data in that dataset. No column headings or data appeared in the DataGridView. What am I doing wrongly? There are 34 fields (columns) in the DataSet - maybe it exceeds the capacity of a DataGridView.
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