Add Items In The DatagridViewComboboxColumn Of DatagridView During Runtime?
Oct 13, 2011
I have a datagridview with three columns which is filled using Datareader. There is a DatagridViewComboboxcolumn in the datagridView.
I want this DatagridViewComboboxcolumn should also be filled using datareader.
how can i add items to DatagridViewComboboxcolumn using Datareader. Below is the code that i have tried.
Here dr is SqlDatareader
Datagridview.Rows.Add(dr("Column1").ToString, dr("Column2"),dr("DatagridViewComboboxcolumn "))
But when i add this way im getting error on the DatagridViewComboboxcolumn Column.
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Oct 11, 2011
My application is in VS2008 and coded in VB.net.
I have a datagridView(DGV) on one of my form.DGV contains a column of type DatagridViewComboboxColumn.I have another column of SrNo.
Consider Table1 to be the table from where my DatagridView is filled which contains following fields SrNo,Value1,Value2.
My requirement is i want to fill the values in my DatagridViewComboboxColumn from Table1.The DatagridViewComboboxColumn's combobox should contain values of columns Value1,Value2 of Table1.
Sample data of Table1
SrNo Value1 Value2
1 2 3
2 4 5
As data in datagridView is filled from Table1 the data of SrNo column of Table1 is also populated in one of the column of DGV.
Now my DatagridViewComboboxColumn combobox should contain the values of Value1 and Value2 of Respective SrNo.
Like Row one of my DGV has SrNo 1 as first value,so the Value1 and Value2 of SrNo 1 should be added to the row's DatagridViewComboboxColumn.
Select distinct Value1,Value2 From Table1 where SrNo=DGV.items(0,DGV.currentcell.rowIndex).value.H ope this Query willl make things more clear
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Apr 2, 2011
I have a ListBox1, a Button1 and a DataGridView1 How can I achieve, than everytime I push the Button1, the items from ListBox1 will also reveal in the DataGridViewComboBoxColumn's dropdown menu.... I'm using Visual Studio 2010.
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Feb 11, 2010
I've added a DataGridViewComboBoxColumn to a datagridview and it displays items ok but what I want to do now is have a default item selected, rather than show up empty or as a "Please select" message.
[Code]...
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Sep 28, 2011
I have a DataGrid, with several columns. One of them is DataGridViewComboBoxColumn. I have a lot of items in this column - more than 1000 - and I need all of them. So grouping is not an option - all items must be there, users must be able to select from all.The problem is, DataGridViewComboBoxColumn becomes painfully slow, when number of items is about 1000, and above. This issues is well known to Microsoft, it dates back to Visual Studio 2005: [URL]...The problem is still present in Visual Studio 2010. Any ideas how to solve this?
Is it possible to fill DataGridViewComboBoxColumn with data partially? I mean (that was functionality fully working in Access), when you click DataGridViewComboBoxColumn, some items are displayed (lets say, 100 items). When you scroll down to the latest item, others are loaded (another 100) and so on. I don't see any other option to make DataGridViewComboBoxColumn working faster? Problem is, how to implement this? Has anyone meet that problem before?
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Sep 28, 2011
I have a DataGrid, with several columns. One of them is DataGridViewComboBoxColumn. I have a lot of items in this column - more than 1000 - and I need all of them. So grouping is not an option - all items must be there, users must be able to select from all. The problem is, DataGridViewComboBoxColumn becomes painfully slow, when number of items is about 1000, and above. This issues is well known to Microsoft, it dates back to Visual Studio 2005:Is it possible to fill DataGridViewComboBoxColumn with data partially? I mean (that was functionality fully working in Access), when you click DataGridViewComboBoxColumn, some items are displayed (lets say, 100 items). When you scroll down to the latest
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Sep 19, 2011
Using a DataGridViewComboBoxColumn, the goal is to make the ComboBoxes accept user's new items and also the possibility of choosing items that are already present.I'm aware of using EditingControlShowing event of the DataGridView to change the DropDownStyle of the DataGridViewComboBoxEditingControl at run time to allow this, but I'm wondering if this can be done at a lower level.
What I'm doing now is extending DataGridViewComboBoxColumn, DataGridViewComboBoxCell and DataGridViewComboBoxEditingControl, hoping to change the EditingControl's DropDownStyle in the moment I instantiate it. So far, no luck.The debugger shows the right assignment is being executed, but nonetheless, the DropDownStyle is popping at the EditingControlShowing (using the event for debugging purposes) as DropBoxList, not DropBox, which is the intent.
Here follow the classes:
Public Class DataGridViewComboBoxColumnALT
Inherits System.Windows.Forms.DataGridViewComboBoxColumn
Public Sub New()
[code]....
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Aug 10, 2011
I am trying to create a basic quoting tool but got stuck on how to clear and change the item collection from within a combobox for a datagrid.What we have is a list of 4 columns like a. Device b.TypeofService c.State d.Price Inside a sql database. Data is also structure like above as well.
I have a datagridview where the user will populate a,b,c and the price will be display and a total at the end. However a,b, and c aren't related in my current application. The combobox will show all possible dinstinct values for each column.
This works fine but I want to refine the application to only show the values of b. which are in the database after the user select the value for a. I have tried searching on how to do this as I assume to the Contry/State/City situation but could not find anything for a datagridview control in VB.NET.
Can anyone point me in the right direction? If I cannot do this dynamically from within a datagridview I was thinking of maybe creating three combo box outside and having it populating the datagridview afterwards but it wouldn't be as nice.
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Aug 15, 2011
My application is in VS2008 coded in Vb.net I have a datagridView on one of my form.This is filled from the database at the load event of the form.The datagridView also has a column of type DatagridViewComboboxcolumn. This DatagridViewComboboxcolumn already has 4 values added to it in its collection during design time.My requirement is when the data is loaded in the datagridview, the corresponding record which is supposed to be loaded in DatagridViewComboboxcolumn should compare its value with the value of DatagridViewComboboxcolumn.And if the value matches than that value should get selected in DatagridViewComboboxcolumn. The database will have the any of the 4 values that are already in DatagridViewComboboxcolumn.It just has to compare both values and select the matching value. Below is my Code
query= "Select Record1,Record2,Record3 from TableName"
cmd = New SqlCommand(query, connection)
dr = cmd.ExecuteReader()
[Code].....
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Jul 20, 2010
I am having trouble with a comboboxcolumn in a datagridview. I have a MySQL table with "products" which i have managed to populate the combobox with, but i would like it so when a user picks a product from the combo list, the rest of the fields in that row are populated with the product information, price etc.
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Feb 18, 2011
I have a DataGridViewComboBoxColumn in my DataGridView. I want to programatically drop down the list box so that the items arte displayed. With a normal combo box this is done with ComboBox1.DroppedDown = True. The problem is that the DataGridViewComboBoxColumn doesn't have the attribute DroppedDown.
[Code]...
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Oct 17, 2009
I have a datagridview with the datasource property set to a datatable (via dataAdapter -> dataset) now within this dataview I have columns I want to change a select few of the cell types to a combobox and datetimepicker when the user ADDS new data (They cannot EDIT existing rows). I know I could manually setup each columns (see below) datasource and its type.
Dim ComboBoxColumn1 As New DataGridViewComboBoxColumn
With ComboBoxColumn1
.HeaderText = "ITEM #"
.DataPropertyName = "item_id"
[Code]...
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Oct 24, 2011
Im gettin this error when I try and insert values from my datagridview to my database: "Index was out of range. Must be non-negative and less than the size of the collection.
[Code]...
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Jan 24, 2010
I have a standard DataGridView. One of the columns is a DataGridViewComboBoxColumn. When I select one of the ComboBox items, I want to trap the change and add additional columns based on the item selected in the ComboBox. I've tried using CellValueChanged for the DataGridView column, and a bunch of other events, but none of them is fired when the DataGridViewComboBox value is changed. What event can I trap to make this happen? Right now as I said, I am using CellValueChanged, but of course the event doesn't fire until I click on another cell...
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Jan 24, 2010
I have a standard DataGridView. One of the columns is a DataGridViewComboBoxColumn. When I select one of the ComboBox items, I want to trap the change and add additional columns based on the item selected in the ComboBox. I've tried using CellValueChanged for the DataGridView column, and a bunch of other events, but none of them is fired when the DataGridViewComboBox value is changed. What event can I trap to make this happen? Right now as I said, I am using CellValueChanged, but of course the event doesn't fire until I click on another cell...
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Jan 24, 2010
I have a standard DataGridView. One of the columns is a DataGridViewComboBoxColumn. When I select one of the ComboBox items, I want to trap the change and add additional columns based on the item selected in the ComboBox. I've tried using CellValueChanged for the DataGridView column, and a bunch of other events, but none of them is fired when the DataGridViewComboBox value is changed. What event can I trap to make this happen?
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Jun 4, 2010
I have a DataGridView that is bound to a DataSet I created from a database table named Contacts. The Contacts table contains a field called StatusId. StatusId is a foreign key to a table called Status. The Status table contains StatusId and StatusName.
[Code]...
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Oct 3, 2009
in vb 6.0 Dim cnview As New ADODB.connection
Dim rsview As New ADODB.recordset
Call connection(cnview, App.Path & "aa.mdb", "")
Call recordset(rsview, cnview, "SELECT id FROM emp")
With rsview
[Code]...
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Jan 4, 2010
Is it possible to add items to a contextmenustrip during runtime in a certain order?I have a program that is very flexible, it can do one instance to any number of instances of whatever, but I want the menu to be able to also display links to each instance.So like
Check
Display
Instance 1
[code].....
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Jul 21, 2009
I am looking to be able to add items to a combox in a gridview at runtime. The only code that I have found is for an editable datagrid combobox not one that items can be added on runtime. Is anyone now of a free datagridview control that does this?
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Jan 25, 2012
Is it possible to add items to a toolstrip menu at runtime? Or to a menu strip?
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Jan 19, 2009
i have taken one combobox in form1, another in form2. when i want to add an item permanently in combobox in form1 it should automatically added in the form2's combobox permanently and at the same time it should be added into the database(ms access) also.
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Jul 2, 2010
I found this in the internet to add values to a combobox:
Private Sub ComboBox_Matricula_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles ComboBox_Matricula.KeyPress
If e.KeyChar = Chr(Keys.Enter) Then
[code]....
how can I remove this by marking/ touching with mouse one value and click on the keyboard "del"?
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Feb 22, 2010
I have 16 comboboxes with a naming convention of:
c1d2
c2d2
c3d2
c4d2
c16d2
These will all contain the same items and I need to add them at runtime. I know how to loop through the controls, but not sure how to make sure I'm only editing the correct comboboxes. (I will have to do this for 2 more sets of comboboxes with similar naming conventions as well)
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Jun 11, 2011
i am able to add items in listview at runtime ,but not able to add this items and subitems in database?
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Mar 18, 2006
I am using VS 2005. My que. is that how to add column into datagridview at runtime?
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Feb 12, 2009
I have a situation where i'm populating records in datagridview from a table where first column is the ParameterName, Second Column is ParameterValue and third column is ParameterType.When i click on second column in any row as per the records, it should show the control type in this cell as per the third column parameterType.[code]
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Jan 15, 2012
i nid to create a program that assigns a student to the available section. i want to populate my data in datagridview using mySql as database..while populating these data.. the datagridview should create a new checkbox column to select/deselect records.
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Oct 8, 2009
I have a project with widnow forms. On a form i hava a textbox, datagridview and a button. My datagridview is bounded to my database. I will like some help with updating datagridview with text that i add with my button to database. I tried the update and refresh on my datagridview but there is no update seen when form is active. If i close and open the form then the changes are being seen on datagridview. This is my code for button click event:
[Code]...
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Jun 15, 2009
I am using the follwoing code to generate Menustrip at runtime.
Dim dgv1 As DataGridView
dgv1 = Me.MenuDataGridView
ReadMenuInGridView(dgv1)
Dim MItems As New SortedList(Of String, ToolStripMenuItem)
For Each dgr As DataGridViewRow In dgv1.Rows
[Code] .....
Where the sub "ReadMenuInGridView" passes the DGV by reference and populates it with the menu item from the database. My question is,, the program as it is in the form listed above works fine (where I have a DGV "MenuDataGridView" created at design time), however, if I want to make it 100% dynamic and use a DGV created at run time I will not get the menu? Actually the program will not get in to the For loop?
Simply to do that we can replace the first 2 statement with:
Dim dgv1 As New DataGridView
'dgv1 = Me.MenuDataGridView
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