I have a datagridview bound to a datatable and i want to add a line to it. I cannot add al ine to the dgv, because it is bound so i add the line to the datatable using Me.BurdensCRMDataSet.dtlines.Rows.Add() however this seems to add two rows - let me explain a little further: A dgv always seems to have what i would call a 'blank next' row, a blank row at the end of the dgv, which as soon as the user populates with data another blank row appears after that - maintaining this 'blank next' row provides a simple and easy way for users to keep manually adding data to a dgv
This also seems to work fine when the dgv is bound to a datatable, an empty dgv would have 1 row (the 'blank next' row) and the datatable would have 0 rows, each time the user populates the 'blank next' in the dgv it is added to the datatable and a 'blank next row is added to the dgv, so the dgv now has 2 rows and the datatable has 1 - and so on and so forth However, I cannot programatically populate this 'blank next' row on the datatable, because it doesn't exist yet in the datatable, only in the dgv and if I programatically populate it in the dgv it isn't added to the datatable and a 'blank next' row isn't added to the dgv
Has anyone here tried putting a combobox to a bound datagridview? The selected value of the combobox will depend on the value of the corresponding column in the database.
I have a datagridview. When the user clicks the edit button, the application fetches the records from the database and binds it to the datagriview. But I want to show the Gender Column as combobox with selectable 'Male' and 'Female' values.
I add a row to the DataSet using the following code: Dim NewRow as DataRow NewRow = gds.Tables("TitleDataSet").NewRow NewRow("Title") = txtTitle.Text NewRow("Local_number") = nubLocalnumber.Value NewRow("Number_suffix") = txtNumberSuffix.Text etc.
This code executes without errors but the bound DataGridView remains unchanged (without including the new row). Obviously I am doing something wrong or I am omitting a vital command. What do I need to do in order to make the new row appear in the DataGridView? I did not choose to bind the DataGridView directly to the database table because the database is selected by the user at execution time. Instead I bound the DataGridView to the DataSet. I included the command:L dgvTitle.AllowUserToAddrows = True but that did not have any effect.
Solved. Was missing the final command:L gds.Tables("TitleDataSet").Rows.Add(NewRow)
I have a datagridview that is populated from an Oracle 11g DB. What I would like to do is add the values of a column together and display the results in a textbox. What would be the easiest way to do this?
I have a datagridview which is bound to a local databse table through a Linq to SQL class.
Everything works as I would expect, when the application runs, up to a point.
If, in the datagridview tasks pane I enable Adding, Editing and Deleting all work as expected.
If I disable Adding & Deleting, leaving Editing enabled, Editing works as expected.
If I disable Deleting & Editing, but leave Adding enabled, Adding does not work, despite the row for new records being displayed. I can move around the row but not enter data.
I suspect somehow its the datasource as opposed to the datagridview that is the cause of my problem but as I say, I can add rows if the Enable Editing option is selected.
Changing the relevant properties programatically makes no difference.
I've been searching for the reason for a couple of days without success.
I have a workaround, by leaving Enable Editing set and programatically setting each row during the RowPostPaint event to be readonly except the row for new records. I would just like to understand what is going on.
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.
I've been researching this all day, it say you must add a record to the datatable if you want to add a new row. This is my code.
Private Sub TagsdetailBindingSource_AddingNew(ByVal sender As Object, ByVal e As System.ComponentModel.AddingNewEventArgs) Handles TagsdetailBindingSource.AddingNew 'Me.TagsdetailBindingSource.CancelEdit()
[code]....
But this code add two rows, the first row has the default data that I entered. The second row doesn't.
I think this is because it add a new row because the "AddingNew" was called. I can't find a way to cancel this "AddingNew". Maybe this code should go somewhere else.
I want the user to be able to use the "Add" button. I just want to insert some default data and then add the row to the grid so they can add another row without having to enter any data.
I have a DataGridView (dgv) on a Windows form (VB.NET) which is bound to a datatable. One of the bound columns is a an ID (Foreign Key) to another datatable. All I want to do is Hide the ID column and populate an unbound column with the Name (ParmName) for the user. I searched the foreign value in the datatable and retrieved the information. I set the Value of the cell in the Datarow. All works well, but does not display. The cell accepts the value...I can even Debug.Print the values to the console. They are there just nothing displaying in DataGridView. Nothing odd about DataGridView. Should be straight forward...
My Code , Dim dtParm As DataTable = MyDataSet.tblParameter Dim dgv As DataGridView = Me.dgvResultNum_DataGrid
I have a few classes, one is a form, the other is the source of the datagridview. I want to be able to sort the columns of the datagridview by clicking on the header. Here are the classes that I am dealing with:
Imports DiscoveryByte.AddTools.Misc_Tools Public Class ViewDiscoveryFlashCards Private DBBindingSource As New BindingSource
There is something strange going on with my datagridview.
I've a data adapter that fills the underlying data table from a database. Then I assign this datatable as datasource to the datagridview Then I add a row to the datagridview and immediately I need to update the table in my database (as soon as user leaves the newly created row).
At this moment I have more rows (+2, not +1) in my datagridview than in the underlying datatable (the new row doesn't exists yet in it so the data adapter .Update method doesn't write anything to the database).
When DataGridView's .RowLeave event fires the undelying datatable is not yet updated. I've a question - is this behavior normal?
If using a datagridview to update a database and the datagridview is bound to a bindingsource which has its datasource as the table to be updated: where dshould you place the tableadapter.update(mydatarow)
I have a datagridview bound to a datatable. I want replace one of the cells with a combo box and bind that combobox to one of the columns in the datatable. I have been able to replace the cell OK but currently have two issues I have not been able to resolve.
1. When I add items to the drop down (items.add ("Yes")...) they don't appear in the drop down box.
2. I can't figure out the syntax to bind a particular column in my datatable to the newColumn(combobox) in the datagridview.
dbConnection = New OleDbConnection cmdCommand = New OleDbCommand Try
Is there a way to add rows to a DGV as I want to add information from another form to the DGV. The .Rows.Add() does not work as I am told I can not add rows to a data bound grid.Short of unbinding the DGV and re writing everything, I can not see how to do it.
In the form below you see how the initial selected item is the first record of the table.. these controls are bound.. I want to initially show "Select one" in the combo box or nothing at all and the other controls not to be bound until an actual item is selected in the combobox..
I'm, using a SQL Server table in a DataGridView and I'm having trouble adding records. I'm new to vb.net but used vb6 for a lot of years so the transition is a little difficult. For now I'm just trying to add a record using a button click but the record key which is setup as integer and to automatically increment by 1 shows as -1 after the record is created. While the data does show in the grid it is never actually posted in the table. Once created I want to select the record just entered.
Here's what I have:
' Declare Private addedRowIndex As Integer
Code:
Dim newMessagesRow As ArcadeDataSet.messagesRow newMessagesRow = ArcadeDataSet.messages.NewmessagesRow newMessagesRow.movie_title = "Added Programmatically"
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."
I am trying to transfer the entire contents of an unbound datagridview (excluding the headers) to the next row of a bound datagridview. This is what I have so far but I'm not sure if I'm on the right track or not.
vb.net Dim rowcount As Integer = dgv1.Rows.Count dgv2.SelectAll()
I want to add some text beside the text which contain "T" I have the same value below the line DETECT,ON but i just want to add text to the lines between FMAT,2 and DETECT,ON. Can i use indexOf methode to get the lines between FMAT,2 and DETECT,ON
For now i used this code to add text
Dim filename As String = strFileName Dim tfLines() As String = System.IO.File.ReadAllLines(filename) If File.Exists("C:kaya.txt") Then
[code]....
I want the text to be added to the T value above the line DETECT,ON. because this code add the text beside T whenever it finds the T value. how add line only between line FMAT,2 and DETECT,ON?
Is there a simple way when using a datagrid to restrict the user from changing existing records but allowing them to add them. I have lookup tables that I want them to be able to add to but not edit the existing entries.
When I populate a combobox with items that have a line and text drawn in the DrawItem event, only the line image for the first item in the list appears in the drop down portion of the combobox. The other items (index>0) shown in the drop down portion of the combobox do not contain an image of the line, yet each item in the list does contain the designated text. The correct line image does appear when the user selects an item and the drop down portion of the combobox is not visible. How can I get the line image to appear in every item of the combobox when the drop down list is activated?
Public Class Form1 Friend WithEvents ComboBox1 As ComboBox Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Me.ComboBox1 = New ComboBox With Me.ComboBox1 [Code] .....
I got a project im currently working on and its going great, Im trying to do a field add. Basically what I want to do is this. I got a textbox and a richtextbox. The richtextbox is the one below. Basically what I want to do is when someone types something like. Randomisn345 and click Add Field I want it to go into the richtextbox but single words. So instead of it going like randomisn345 testing356
I need to be able to find out if the text in my label is resizing the label to an extent where it extends beyond the form, I think I can do this using the form's .right and the label's .right property.how do I add in new lines / wrap the text or whatever?
I'm making an app that loads external html in a webbrowser after adding some value to it from a database. But how do i add the values. the html will be somewhat like this
I have bound an array of a class with 3 public strings.
When I run the form app and in the form load call I bind the array to the DGV all works fine and the DGV is fully populated. However, if I change an item in the array I had expected it to change in the DGV.. it doesn't. Or rather, it only updates if I click on the cell that should have changed.
I have a datagridview bound to a table adapter. It displays data just fine. Part of this data is a comments field. When a user wishes to edit this I open a seperate form with the data in a a text box. After the user edits this text, how do I update the database / datagridview?
I can update the datagridview cell's value but that doesn't propagate to the database until the focus is removed from the row. I tried BeginEdit and then EndEdit (which should commit) but apparently it needs to move to another row!
I have a form that contains a datagridview control that is bound to a dataset in design mode. This form contains various other textboxes and combobox controls as well and allows users to create and view Work Orders. It also has a Button control ("New W/O"), that when pressed will clear all values from all the controls on the form. My problem is that it's not removing the rows of data in the dgv. The code that I used to try and clear out the dgv is[code]...
How can I reset the dgv to retain it's default column headers but remove all the rows for the selected W/O?
For example; I have a DataGridView bound to a MYSQL Database. There are two string columns "Name" and "Gender". I need to make the "Gender" column a ComboBox where they can select "Male" or "Female".
Okay so I have a datagridview that is bound to a dataset. I have a column called type is a string char of either C, R, A, or V. The problem is that I want to sort the datagridview rows using that column and do so in the order I just gave so I want rows with C on top and then R and then A and then V. Because these aren't alphabetical, how could I sort the items this way? I did look into the icomparer, but really wasn't able to figure out how that works.
