VB Desktop App- XML To DataGrid W/ DataGridViewComboBoxColumn?
Jun 12, 2011
I'm trying to create a simple GUI application (VB Desktop) that will allow me to modify an XML file's nodes which contains the program settings and table definitions for an application.The GUI application's datagridview contains three columns: colA, colB, colC.ColA should be the direct value from an XML Node. ColB and ColC are values retrieved from XML but should be expressed as a selected value from a drop down list embedded into the column for each row of the datagridview.
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May 31, 2012
Is it possible to (without a mile of code) Drag and drop files from a datagrid to the desktop or open folder?
I have tried this:
Dim sFile As String = "D: est.pdf"
C1Grid_Documents.DoDragDrop(New DataObject(DataFormats.FileDrop, sFile), DragDropEffects.Copy)
But no file is created.
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Jun 11, 2012
We have a Windows Forms VB.NET application running on Windows Server 2008. Users access this app using Remote desktop.The app displays information in Excel, but Excel opens on the server.Is there a way for the .NET app to launch Excel on the users local desktop?
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Sep 5, 2011
Some of u already know I'm making a 'virtual desktop'- thing.Only one problem. When switching to a new desktop it starts a new instance of my app in that desktop (works) and on the form load event it says process.start("explorer.exe") <- here is the problem. It only shows a window not the actually bar.Also this may be important it shows the window, but when I navigate to explorer.exe 'C:Windowsexplorer.exe' and open it there. The explorer bar does show up.
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May 17, 2009
I'm working on one of my applications and I'm trying to find a way to use the "Go To Desktop" function that goes directly to the desktop without minimizing any window (This can be achieved by clicking on the Win + D buttons or on the desktop icon in the quick launch toolbar), but how can I activate it using vb? I thought about sending keys but I guess there is more offical ways to do it.
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Feb 4, 2009
i'm working in VB.net,i'm newto vb.net. i have Datagridviewcomboxcolumn in my project, i want open a form at run time it should open when i press F2 key onDatagridviewcomboxcolumn. but Datagridviewcomboxcolumn has no any events. how
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Mar 29, 2011
I have datagridview containing 4 columns with 2 combobox. With the initial loading of datagridview I could select an item with the combobox, but when I tried to select an item with other combobox I've got an error showing "System.ArgumentException: DataGridViewComboBoxCell Value is not valid. To replace this default dialog please handle the dataerror event" . When ever I click it's always shows this message.
[Code]...
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Oct 15, 2009
i add a datagridviewcomboboxcolumn to my datatagridview and fill it with data like this: 1:a 2:b now, when user select an item i want to display only the number for value?what can i do? this is the project:download
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Dec 7, 2011
I have a dataGridView control with a DataGridViewComboBoxColumn column, the question is Which event of the dataGridView I must use to detect when the user change the selected value of a particular DataGridViewComboBoxColumn?
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Mar 29, 2011
I have datagridview containing 4 columns with 2 combobox. With the initial loading of datagridview I could select an item with the combobox, but when I tried to select an item with other combobox I've got an error showing "System.ArgumentException: DataGridViewComboBoxCell Value is not valid. To replace this default dialog please handle the dataerror event" . When ever I click it's always shows this message.
[Code]...
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Feb 19, 2009
I have a datagridviewcomboboxcolumn which has its .DataPropertyName set to a int field, its .DisplayMember set to a nvarchar field and its .ValueMember set to a int field on a lookup table. I have captured a dataerror which states that the control is trying to push the .DisplayMember(nvarchar) to the .DataPropertyName(int) field. When I load existing data it works fine. When I try to leave the datagridviewcomboboxcolumn after selecting a different value in it or leave it when I add a new row, I get the error. What am I doing wrong?
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Nov 1, 2009
i want a datagridviewcomboboxcolumn with 2 column.see the name in colum1 and choose code in column2 or something like this:see the name and code but on select just show code?!
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Jun 24, 2011
I need to get the selected value of a ComboBox in a DataGridView. I have it partially working, but I get a Null Reference Exception if I change a another ComboBox in the grid.[code]...
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Jan 18, 2010
i have a bound dgv. i populate a datagridviewcomboboxcolumn like this and add it to my dgv:
With comboboxcolumn
.DataPropertyName = "JobID"
.DataSource = RetrieveAllJobs()
.ValueMember = "JobID"
.DisplayMember = "Description"
[Code]...
I have one record in my Job table stored as <None>. How can i set that record to be a default value for each row?
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Apr 14, 2009
i have a datagridviewcomboboxcolumn that i am trying to populate. i set up the DataSource property using the wizard, there after i selected the DisplayMember from a corresponding drop down of fields from the table set up in the DataSource and then lastly i selected a field to be the ValueMember. problem is when i run my program datagridviewcomboboxcolumn is not populated.there is no drop down at all. what should i do to see my drop down or perhaps i need to set up in code.
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Apr 7, 2009
I read a lot topic in this forum about how to set a SelectedValue in aDataGridViewComboBoxColumn but nothing was useful for me. I dont know why, maaybe I dont know understand the problem.ets see: I have a DataGridView where one column is a DataGridViewComboboxColum. filled it. know read the selectedIndex with a EventHandelr and one Delegate created in the DataGridView EditingControlShowing event.This is the class with I Fill the DataSet for the ComboBox.
Public Class Expample1
Private code As String
Private name As String
[code].....
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Feb 15, 2012
Before I get started let me tell you guys that I have googled and read the documentation from the codebank. Especially jmcilhinney's post. Here is my problem. I have a nicely working datagridview on my form.
[Code]....
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Dec 9, 2010
how to get selected DataGridViewComboBoxColumn values in vb.net?
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Feb 15, 2012
I try to add now value to DataGridViewComboBoxColumn is already bound is there any way to do this at
its like add "AddNewItem" at the bottom of my dropdown list
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Jun 21, 2012
I'm trying to set the ValueMember property on a ComboBox column of a DataGridView, from the designer in VS2010.Every time I set the value, at the moment of leaving the cell, it revert to (none).Same thing happens with the DisplayMember property.
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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 9, 2009
I have datagridview containing 4 columns with 2 combobox. With the initial loading of datagridview I could select an item with the combobox, but when I tried to select an item with other combobox I've got an error showing "System.ArgumentException:
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Jul 11, 2010
I get the DataGridViewComboBoxColumn cell value is not valid only when the record in the ComboBox table does not exist. I have done quite a bit of searching on this and I can't find this particular situation mentioned.
I have a datagridview with a comboboxcolumn on it, both generated entirely in oledbdataadapter code. The datagridview is created, then the combobox is created, then the combobox is added to the datagridview, then the datasource of the datagridview is set. It works just fine. Except if there is no matching record in the combobox table I get the "DataGridViewComboBoxColumn cell value is not valid" error popup. I could trap the error but it seems to me a beter way would be to prevent it from happening. Is there some property I can set or something I could do to compensate for the situation where there is no match in the combobox?
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Oct 13, 2011
I have a dgv with several DataGridViewComboBoxColumns and when the user selects an item from one of these (product dropdown), i need it to repopulate another combobox (color dropdown) in the dgv for that same row - based on the value i get from the product dropdown. I've tried using the EditingControlShowing event; however, it only fires when I first select the dropdown .....?
Is this the right event I should be using? My other issue is that I don't know how to have the color dropdown re-populate for just the column and row I've selected. Here's my code so far for this event:
Private Sub DataGridView1_EditingControlShowing(ByVal sender As Object, ByVal e As DataGridViewEditingControlShowingEventArgs) Handles DataGridView1.EditingControlShowing
Dim myRowIndex As Integer = 0
[code]....
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May 25, 2011
I am using datagridviewcombobox column for the first time bound to a datasource.I have set the datasource, DisplayMember and ValueMember. The DGVcombobox is getting filled up from the datatable column content without any problem but unlike a normal combobox, it is not displaying the first item as the default text from its list.
So My question is how to display the first item, from the list as the default text so that the user don't have to select an item from the list for every row.
I am searching again and again but without any success, Please help me. Thanx.
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Jan 21, 2011
I have a DataGridViewComboBoxColumn that I allow the user to add new items to by typing in the ComboBox and hitting the 'Enter' key. That triggers CellValidating and I do the adding there by the following:
cmbColumn.Items.Add(e.FormattedValue)
All this works well, except that it leaves the DataGridViewComboBoxColumn blank. How can I set the DataGridViewComboBoxColumn to display the e.FormattedValue?
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Jul 31, 2008
I have a bit of a dilemma - in the ComboBoxColumn, I have added various numbers from 0 to 11. I need people to be able to type into the ComboBoxes in that column if the Combobox doesn't contain a value they need.I realise that I have to change the ComboBoxStyle to DropDown but am not sure how to. Also, for each row in the ComboBox, I believe I have to add the item that the user typed to the ComboBox list items for it to save but am also unsure how to do it.
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Aug 19, 2011
I am trying to bind a datagridview to a data source using a dataset.I am populating the grid view using the fill method however when I changed One of the columns to DataGridViewComboBoxColumn instead of a regular textbox It gave me errors. the user need to select numbers from that combobox and I want to set the first number that the user see from my database and then he can change the numbers as he wants after changing he can save the changes.Does someone knows how to populate the datagridview using the fill method and saving the changes using the insert or update method when the grid view contains a ComboBoxColumn
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Jun 13, 2011
I need to get the selected value of a ComboBox in a DataGridView. I have it partially working, but I get a Null Reference Exception if I change a another ComboBox in the grid.ere's my code:
Private Sub dgvSampleList_EditingControlShowing(ByVal sender As Object, ByVal e As DataGridViewEditingControlShowingEventArgs) Handles dgvSampleList.EditingControlShowing
Dim comboBox As ComboBox = CType(e.Control, ComboBox)
[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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