VS 2008 DataGridView ComboBox Columns?
Nov 9, 2010
So i have a datagridview with two combos, when the form it's created i fill the first one with all the MainValues, and the second one with all possible values for the MainValues (called SecondValues) (1..N).Now my issue, when the user selects one value from the first combo i want to fill the second combo with all values related to the selected MainValue, i can do this for example by filling the datatable again with a parameter that filters the data, but if the previous rows have different main values, the dgv throws errors because it doesn't find the binded ones in the new filtered datatable.
How can i handle this? One datatable for each line?! Other thing, i'm using the SelectionChangeCommited event for handling the values change (in theEditingControlShowing), but if the user uses the keyboard to select the values the event doesn't behave in the same way or the way that i need. The values in the combo are numeric values (1001,1020,2010,3010), when the user select one of the values, i need to fill another cell in the same row with the number selected plus some string, example combo:1001 cell:1001XPTO. So if the user presses 1 in the keyboard the combobox selects the 1001 and fills the cell with 1001XPTO, but if i keep pressing the keyboard to select the 1020, by pressing 0 and 2, i get the 1020 selected in the combo, but the cell remains with the 1001XPTO.
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Dec 14, 2010
I am working with an Unbound DataGridView. I would like to vary the contents of a second combobox based on what is selected in the first. I have code to add the columns and populate the first combobox, but I can't figure out how to do the second one since it can (and usually will) have a different list for each row AND the list must change when the selection in the first is changed.
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Dec 13, 2010
I have a datagridview that has 1 combobox column (it will eventually have between 1 and 3 more) but I can't find anything anywhere on how to add rows to this column. I create the columns:
[Code]...
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Oct 26, 2011
The user picks x amount of scenarios from the combobox, and x amount of columns appear in the datagridview. If the user changes the number of columns from x amount to y amount, the columns should be added/removed respectively but currently when y amount is chosen x amount of columns are in the datagridview.
I'm not sure how to do this, I've tried using an IF statement under the .SelectedIndexChanged event but the code adds columns until it reaches as high as it can go, then pulls an error saying too many columns.
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Apr 2, 2010
i just finally got my code, with the help of you guys, working to fetch column values from my database and display it in a ComboBox.
Now i am thinking to myself that simply displaying a customer's surname just is not enough due to repetitive issues etc. What i propose that i should do is have multiple column values in a the combo box. For example
CustomerID, Surname, Firstname
My current code is:
con = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:My DropboxDocumentsTaxi Service ProjectDatabaseTaxiProjectDatabase.accdb;")
con.Open()
[code]....
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May 11, 2009
I have this code here:
[Code]...
I know there is MyDataTable.columns How can I get it to put the columns into a ComboBox so i can select them?
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Mar 26, 2009
How do I sort a DGV by 2 columns? The DGV is not bound.
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Apr 1, 2009
Because I have been trying for ages, and each time it returns to default. Under the 'Properties' window, I have taken this image to show what I have done. I have also tried resizing it as it is running, but the next time it is opened it returns to default size.[URL]
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May 18, 2010
what's the best way to add some space between some columns, just to aid the user to read/understand the data (i have more than 50 columns).In this particular case i'm using a data bound dgv and one approach that i'm using currently, it's in the SQL statement add a new column named SPACE1, SPACE2, etc...Something like:
SQL
SELECT col1,col2,NULL AS SPACE1,col3,NULL AS SPACE2...
I know that i can add columns at runtime, and handle the cell paint event to change the left and rigt margins... But i don't know what option should i use, does anyone know a better way or in the above three it's the best one?
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Oct 26, 2011
I'm using VB.net 2005. I have working programs that I populate DataGridViews with something like the following:
[Code]...
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Jan 4, 2012
Is it possible to show vertical columns lines for datagridview, also for empty area, as VFP grid,as in image?
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Mar 5, 2010
I am entering data in a dataGridView, I have a column named with 6 characters.The first 3 characters are always "HHH"When I enter in this cell, Is there any way to put automatically these 3 characters and start to write in the fourth one?
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Mar 6, 2010
I can't seem to add data in my DatagridView by having set the Columns, this what my datagridView looks like:he combobox you see where filled by this
ReaderQuery("Select ChargType from ChargeType")
cmbCharge.Items.Clear()
While dr.Read
[code].....
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Jun 15, 2009
Is there a way to programmatically send information from a text box into specific columns in a DataGridView? I tried
vb.net
Column1.Text = TextBox1.Text
and it obviously does not work.
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May 13, 2009
I want to be able to have a dozen or so text boxes be emptied into separate columns in a row of a datagridview. This way the text boxes can be cleared and have new values entered then save the new values as a second row in the datagridview. This is so my VB gui which which runs everything through an old cmd line program, can do batches instead of one run at a time.
The problem is I have absolutely no idea how datagridview works. I've tried searching google and only found some vague things and stuff about databases. I also tried the MSDN library and that was of no help either, couldn't find anything on simply adding stuff and if I had it'd probably be to complicated to be of use to me.
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Mar 5, 2009
how to create a datagridview with the "main" datasource one table, and one column of this table it's a column (combobox) related with another table.I'm doing this all by code, but i have several doubts how to achieve this.First i had allready created the datatables in memory, the first one have only 3 fields (pk,info,size) the size field it's the field that's related to the the other table (id_size,size_text). Then i inserted the only roms that i need in the second table (dtUni)...In the previous steps i don't have any problem, but now if i try to add a constraint to relate the columns, something like this:VBdsTemp.Relations.Add("fkRel", dtAcess.Columns("id_size"),dtUni.Columns("size")) I get an error saying that the column doesn't exists in dtAcess.
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Dec 10, 2009
I have a datagridview for the transactions table. On the datagridview there is a combobox column for the type id field in the transactions table. This combobox displays the transaction type name from the transaction types table and puts the transaction type id into the transactions table. That much is okay. But each transaction type belongs to one of several categories. I have a categories table. The category id field in the transaction type record points to the id of the categories table. The category id is not in the transactions table, it is in the transactions types table. I need to know how to link the categories combo box on the datagridview to the category id in the transactions types combobox, which isn't even there right now. At present the transaction types combobox does not display the category id. It displays the transactions type name. Do I need to add another combobox to link the categories combo to the types combo?
I need to have it first and foremost so it will display the correct category when existing records are pulled up. I think I could do this with a join to the transactions type table in the categories combobox. But that wouldn't cause the transaction type combo to filter by category when a new entry is made.
Can someone advise as to the correct way to link comboboxes in this type of heirarchy?
I am using VB.NET 2008 and an Access database.
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Nov 2, 2010
I have tried searching on if it is capable to do autocomplete in a combobox in the datagridview control. I was planning to use the combobox in the grid itself. There is a property to set autocomplete true/false but I cannot get the cb to let me enter text to find. It only selects on the first character of items in the list.
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May 22, 2010
I have a form with a DGV bound to a SQL database. the DB has three colums: ItemCode, ItemName, Status. The Itemcode field is a combobox complex binded (if this matters). How can I have the ItemName colum auto insert the text for the ItemName colum when I select the associated ItemCode with the combo box.
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Sep 25, 2009
I have a column in a datagridview that is a combobox with 4 items in it. I can use this code to see the text value of the selected item:
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Feb 7, 2012
I have a form with a DataGridView and ComboBox, both of which are populated with data from an Excel spreadsheet, the source is unbound. My problem is in repopulating the DataGridView with data from another worksheet in the same Excel file when the user selects the corresponding value from the ComboBox. For example if they were to select January from the ComboBox then the DataGridView would load in and display the data contained on say Sheet2, selecting February would load Sheet 3 and so on. I am running Visual Studio 2008.
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Jan 12, 2010
i use this to populate my datagridview:
[Code]...
to replace this default dialog please handle dataerror event and the combos value then changes to the id of the job i select
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Jun 3, 2010
I just spent over an hour looking up on the internet how to fill a combobox for each row in a datagridview that is unbound. I am adding the rows manually by code. The columns are already there and one of them is set to a combobox.
how to add two items to the combobox? Each row will have the same items available in the combobox.
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Jan 19, 2009
I have a datagridview and a bindingsource. The first column is a comboboxcolumn which is bound to a table field and then the rest of the items are populated from another datatable. What I have on my other forms is a textbox called txtfilter and on the textchanged event I have this
Me.ProductBindingSource.Filter = "BatchNo LIKE '" & txtFilter.Text & "*'" that works great. Now I want to filter the combobox columns just like this.
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May 7, 2010
I have this test form where I'm testing the idea, but ran into a snag. Now the main idea is to load all the data from a dataset into the one column of the datagridview. This works perfectly as shown in the image. Now there is something that I want to happen, but just can't get it right. when on the DataGridViewComboBox Column I also want to be able to type in my own data if the one I want is not available in the combobox.
Also if there are 50 values in my combobox and 2 of them are:
jacky, jacson
When I type jac, I want the combobox to only give me the options starting with "jac"
Here is the code that I'm currently using:
Dim dt As DataTable
Dim dsNewDataset As New DataSet()
Dim i = 0, intSetArray As Integer = 0
Public Function JT_PullDataWithCOLUMNS1(ByVal Cols As String, ByVal TableName As String) As DataTable
[Code] .....
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May 11, 2010
I have ComboBoxes and DatagridViews for which I've written code to automatically adjust the width of the ComboBox dropdown list or DataGridView columns depending upon the available space for them and certain conditions.The problem is when a vertical scrollbar appears. I then need to adjust for the width it takes, but am not able to find how to detect this using code.Ive been looking at .ScrollBars, but with this I can only set/get for them to be able to be there or not.
For the ComboBox:
-How can I detect if it has a vertical scrollbar before opening its dropdownlist, if at all possible?
-If not, how do I check using code if it has a vertical scrollbar?
For the DataGridView:
-How do I detect using code if it has a vertical scrollbar
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Jan 14, 2011
I am using this to populate column1 combobox from a text file and it works fine.[code]I tried to add a number range using this to populate columns 4 and 5..[code]The number range populates the combobox(CB) fine but when i select a number from the CB it causes a error and selects the first item, the error loops evertime the mouse hovers over the CB..[code]
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Jul 1, 2011
am Working on VB.NET 08 Windows Appl. Present i am Working on the DataGridViewCombobox Column. When i click the Combobox ,Clear the Items Which are having the Combobox and add New Items Manually.
For Example: In the Load Event For each Combobox cells Having a,b,c Items. But When i Click the Combobox cell in the DataGridView the Items (a,b,c) delete and Add new Items X,Y,Z .
How can i delete and add new items when click on the Combobox cell in the DataGridView??
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Sep 6, 2006
I'm filling a combobox from a dataset that has three columns, DealerID, DealerName, DealerState. I can only get one column to display. show two or more columns in a combobox? My code follows:
adapter.Fill(datList, "tblDealerID"))
Dim drDealer as DataRow
For Each drDealer in datList.Tables("tblDealerID").Rows
cboDealer.Items.Add(drDealer("DealerID"))
Next
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Jan 29, 2010
Does anyone know how I can go about concatenating multiple columns from a table to populate into a combobox? I have 4 columns from which I need the data to show up in 1 line when clicking on the dropdown/combobox list. I'm not sure if I have to deal with the display member or the value member.
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