.NET Programmatically Generating Combobox In Datagridview?
Jun 21, 2010
For my application i'm trying to generate a datagridview with a comboboxcolumn in it. This combobox I wanna fill with some data from a table in my database.I've figured out how to add items to the combobox but I can't assign a value to it. The combobox is suposed to fill with product name items, and the value should be the weight of the product, so later on i can calculate the total weight.But now it's just displaying the product name, and the value is also the product name.
Dim palletds As New DataSet
Dim palletsql As String
Dim i As Integer
palletsql = "Select * from pallets"
[code]....
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May 21, 2010
I have a datagrid with first coloumn as combobox and second one as textbox. The combobox had datasource with displaymember and valuemember. The problem is when i try to retrieve value from database and put it into the grid i get exception
[Code]...
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Aug 12, 2011
Im Using a datagridview to display items in an invoice. when the user enters the data in, they use a DGVcombobox to select which particular item they want. what i want to know is. can i change the text of the combobox programatically after the items have been filled
Edit The DGV in question has 2 predefined columns one is a comboboxcell and the other is a text box cell im trying to fill it using
[Code]...
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Apr 8, 2009
i am programming in vb.net and i am still a novice. i need to know how to generate a new line in the grid view from code. i have an input field which accepts a value. when i hit enter it should populate a line in a gridview. how do i generate this new line as it appears i keep overwriting the first line.
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Mar 30, 2012
Major problems with the Schema. I am using the DataGrid and not the VB Express 2010 DataGridView. Using code to make a new DataSet and DataView. What is confusing me is when adding Items after right clicking the application in the Solution Explorer, the add items shows DataSet, Xml To Schema, and Xml File. It is obvious that I don't know how to generate an xsd file that I can read into a code generated DataSet. If someone is familiar with xml and VB Express2010. how to generate an xsd file using DataGrid instead of DataGridView that I can read into a code generated DataSet?
[Code]...
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Jul 11, 2009
i am trying to select the value of combobox programatically.. like my application has a form in that they can edit some field.. one of them can have only few values and they cant be edited.. i am populating them in combo box (dropdownlist type) and later ,
Dim cs As String = reader.Item("Category").ToString
ComboBox1.SelectedText = cs
reader is data reader.. when user click id, it loads all values in all text boxes.. then string cs gets value of that record but fails to select it.. in Main UI the Combo box is blank.. when i click drop down item all values are coming(that are defined previously, but i want only 1 values to be displayed that is associated with that id and its present in that drop down)..
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Apr 15, 2011
In a Windows Form application (VB.NET) I have a combo box and under certain conditions, when the user opens the DropDown list, I want to display a warning message.All of this works well: In the DropDown event, I check the conditions and if required I display the warning message.The problem is that when the user clicks on Yes on the warning message, I move to another tab on the main form and the drop down list still shows even though I've moved away from the tab containing the combo box.I've searched quite a bit and tried to set DroppedDown to False, call OnDropDownClosed, etc but nothing worked.It seems that when I try to close the drop down list from within the DropDown event, it doesn't work.
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Aug 21, 2009
Is there a way to loop through each constant in the ControlChars module programatically? I want to add each of the enumerated control characters to a combobox control.
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Sep 13, 2011
I have two datagridview's both are databound. First one shows items for sale and the second stores all the items that were sold. I am trying too transfer selected rows from one to the other but no matter what I keep getting told "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound."
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May 2, 2012
DataGridView TIPs has TextBoxes and ComboBoxes in it and the data comes from an SQL table. I see how to get or set the cell values that come from the ComboBoxes using Item, but how do I access the actual ComboBox events and properties?
[Code]...
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Apr 2, 2010
I want to add row to datagridview programmatically with this [code]...
the error i get is : Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound.
the datagrid is not data-bound. i used the same code in another form and it's working.
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Dec 5, 2010
I would like to manually insert values in a combobox colum of a datagridview.I am using the DGV as an UNBOUND control.
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Aug 8, 2011
in datagridview, how do I go to last page and last row programmatically?
I tried below, but it does not work:
Tried 1:
dgv.FirstDisplayedScrollingRowIndex = dgv.RowCount - 1;
dgv.ClearSelection();
dgv.Rows[dgv.Rows.Count - 1].Selected = true
[Code].....
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Apr 1, 2009
in datagridview, how do I go to last page and last row programmatically?I tried below, but it does not work:Tried 1:
dgv.FirstDisplayedScrollingRowIndex = dgv.RowCount - 1;
dgv.ClearSelection();
dgv.Rows[dgv.Rows.Count - 1].Selected = true
[code].....
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Sep 25, 2010
I have a DataGridView that I'm trying to populate using a For loop:
Dim serverName As String = SQLServerName + "" + Instance
Dim server As Server = New Server(serverName)
Dim Datatable1 As New DataTable
For Each database As Database In server.Databases
Dim row As DataRow = Datatable1.NewRow
[Code]...
The DGV has been designed with the designer (columns, layout etc). Using the above the DGV does not populate. I was using a ListView for this but I need images in a subitem so have switched to using a DGV.
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May 22, 2006
How can i scroll my datagridview to its last row in the underlying dataset.
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Nov 28, 2011
In vb.net2005 i want to add and delete records programatically from DataGridView using datasource from MSAccess 2007 , and database contains fields based on date/time and yes/no .for deleting rows i am using
Dim cmd As OleDbCommandBuilder
cmd = New OleDbCommandBuilder(da)
Dim dt As New DataTable
[code]....
both are working without date and yes/no fields ,but when these included then i am getting error,can i know how to add & delete when date included
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Jan 6, 2009
I have a datagridview which i getting populated by the following
Dim SQLCOMMAND As New SqlClient.SqlCommand("SELECT COMMAND")
SQLCOMMAND .Connection = New SqlClient.SqlConnection("connectionstring")
Dim dataset As New DataSet()
[code]....
now i want to programmatically add the rows to the datagrid.....bcoz i can't add an array as the error givesrogrammatically rows can't be added to the bound datagrid....
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Feb 22, 2009
I've a problem with DataGridView component when trying to set the value of the CurrentCell. What i'm trying to do is :
I've a DataGridView With values. I want to make a button in my forms and when clicking on it I want to change the selection from the current row to the next. To explain more, by clicking my Button I want to simulate the effect of a mouse click on a DataGridview.
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Aug 15, 2010
I am using Visual Basic 10/I have 2 datagridview tables. The main datagridview can be edited by the user; adding/removing rows, changing data in text/combo columns, sort, etc. 2 columns from the second datagridview are a carbon copy of 2 columns from the main datagridview. I have achieved this by binding both datagridviews to a dataset. So that when I edit the main datagridview the effects are automatically replicated in the second datagridview.
Before I bound the datagridviews to the dataset I had a fully functional system to save the content of the datagridview to a text file and read it back in. This has now stopped working with the error message 'Can't edit a bound datagridview programmatically'.
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Apr 9, 2009
I have a unbound datagridview for which i want to add a new row at the bottom when a user selects a value in the 2nd column of a 9 column DGV. The issue is that i have a default value (0.00) programmically entered into the last row once this 2nd column value is entered. When i call DGV.rows.add() it places the new row at teh top, but when the user enters or changes the last coulmn value then a new row is added at the bottom. I want my programmically added row to be at the bottom and have not found a way of doing this.
PS. What is the logic behind this different behavior on adding rows?
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Apr 25, 2012
If have a textbox that is used to search a datagrid when a user types into it. This seems to be working properly, as the correct row is highlighted when text is entered. However, something isn't quite triggering properly because if I try to get the selected row, using dgSchedule.CurrentCell.RowIndex, it always comes up with whatever the last row that was physically clicked on, rather than the row that is actually highlighted.[code]...
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Sep 15, 2011
at the textbox.textchanged event im looping trough the rows in a datagridview
For Each row As DataGridViewRow In grd.Rows
Dim svalue As String = row.Cells(0).Value.ToString
If Microsoft.VisualBasic.Left(svalue, txtSearch.Text.Length) = txtSearch.Text Then
[code].....
now how to scroll to the selected row ?
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Dec 17, 2009
how to connect a SQL Table to a DataGridView that was previously created programmatically. Basically, at run-time the user names and creates several empty SQL Tables and DataGridViews. After that the user selects from a combobox the name of the SQL Table and DataGridView that they want to import data into, then clicks a button named "Import"...after clicking "Import" the user navigates to an Excel file, chooses a worksheet, clicks a "Continue" button and then the code successfully connects to the Excel import file and SQLBulkCopies the data to the SQL Table...next I need the imported data in the SQL Table update to the DataGridView...this is the part I can't figure out.
The challenge is the datagridview isn't hard coded it was created and named programmatically at runtime. So now the user selects the name of the SQL Table the data resides in and the name of the DataGridView from the combobox "moduletableCB" and I need the code to update the datagridview.
[Code]...
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May 17, 2010
How do you change the column type in a datagridview programmatically? I have several tables that I want to allow the user to update using the same form. Depending on the table, I need to change the column type to a checkbox instead of text. Following is the code that I run (just exchanging the table name and column #). Everything works well as long as I don't try to change the column type.
Dim qry = From lst In dbCodes.Codes_InjuryBodyParts _
Select lst Order By lst.CodeDisplay
Me.bsCodes.DataSource = qry
[Code].....
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Feb 27, 2008
I am working on my media program which utilizes the amazon ecs web service. So far it does a search and pulls a list of image url's for the dvd covers.
Is what I want to do is take those image urls and somehow feed them into a datagridview, so that the user can scroll through the images and choose the right one.
Here's what I have so far
Code:
If item.IsSetLargeImage() Then
Dim largeImage As Image = item.LargeImage
If largeImage.IsSetURL() Then
[Code]......
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Dec 17, 2009
I have column memo in datagridview memo column cells has some time various number of words. If I put more words in memo column it gives scroll bar at the footer I don't know how to wrap text in them cells programmatically. Just want to fix column width and wrap text vertically. does it increase height of cell as well.
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Oct 1, 2009
I wish to programmatically change the value of a particular readonly column of a datagridview when any other column is edited. This is the code I use:
Private Sub gridViewPFI_CellValueChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles gridViewPFI.CellValueChanged
[Code]....
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Mar 15, 2012
I programmatically edit my datagridview cell values. I use the vertical scrollbar to find the row I want to edit, select the row then click an edit button that takes me to another form where changes to the record are made. I then click a button which saves the changes and returns me to the datagridview form. No problems here.
When I return to the grid, the records are displayed with the first record at the top of the grid. That is, the vertical scroll bar has repositioned itself to the very top.
Is it possible for the datagridview to "remember" the position of the vertical scroll bar so that when I am returned to the grid, the rows displayed are the same as when I left?
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Feb 18, 2010
I need to highlight rows in an unbound datagridview at runtime.I've tried to highlight right after adding the row using dgv.Rows.Add(row0)dgv.CurrentRow.Selected = True
This has no apperent effect as none of the rows are highlighted.How do I get various rows to highlight at runtime.
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