When I add a new row to a datagridview, I am able to add data to a cell, but when I go to the row with the mouse the data disappears out of the cell. What code is needed to get the data to stay?
Private Sub BindingNavigatorAddNewItem_Click(sender As System.Object, e As System.EventArgs) Handles BindingNavigatorAddNewItem.Click
' When a new row is entered add Site id.
[code]....
I have a Windows Form VS2010 .NET 4 project with a standard DataGridView bound to a datasource on a form.
The grid has a text column that I want to be a point and edit at the character clicked to. Like normal textbox/editors when you click on the character you want to adjust. If possible I would also like to use the UP/DOWN keys to move between rows but would like the cursor to move to the same character position obviously in the same column without selecting the entire text.
I have tried a few things:
DataGridView1.ClearSelection()
DataGridView1.BeginEdit(False)
The BeginEdit just puts the cursor at the end of the text, which means another click to point to the character position for editing.
I know a Commercial grid like DevExpress defaults to editing in which you can click to the correct character position with one click but obviously costs money.
I have tried in the DataGridView1_EditingControlShowing event
If TypeOf e.Control Is System.Windows.Forms.DataGridViewTextBoxEditingControl Then
Dim tb As TextBox = e.Control
tb.SelectionStart = 5
[Code]....
I am just trying to remove the two or three clicks to get to the character position that needs adjustment.
I want to save data that I have typed into a datagridview column. The datagrid view is filled from a simple query. I can save when in access but not when I want to from a screen using vb2008. hat do I need to do?
View 7 RepliesIs there a way to get the max number of user filled cells in an excel sheet without passing a range or iterating through max cells per excel spreadsheet?
Right now I have
Imports Excel = Microsoft.Office.Interop.Excel
Private Sub DoStuff()
Dim oApp As New Excel.Application
Dim oWB As Excel.Workbook
Dim oSheet As Excel.Worksheet
[Code] .....
Right now the oSheet.Cells.Rows.Count = 1048576 and looking through the sheet there is less than 1000 rows of data.
I have a data grid view control which i populate using a random access file. What i want to do is when a user clicks on a cell, i want the data held in all the cells in the particular row to be used to populate some textboxes. i have searched everywhere and they all use sql databases.
View 2 RepliesI have been trying to find the last filled column row in a sheet using this.
clast = xlapp.ActiveSheet.Cells.Find("*", SearchOrder:=XlSearchOrder.xlByColumns, SearchDirection:=XlSearchDirection.xlPrevious).Column
rlast = xlapp.ActiveSheet.Cells.Find("*", SearchOrder:=XlSearchOrder.xlByColumns, SearchDirection:=XlSearchDirection.xlPrevious).Row
I have a WinForms app with a datagridview and a bindingsource. I want the user to confirm changes before I save them to the database. don't want to pop up the confirmation dialog unless I know the user has made changes. So I need a way to check if changes have been made.
View 2 RepliesThe strings did not filled the items on my datagridview using with system.data.table. When I click the button, nothing are going to fill on my datagridview table.[code]...
View 1 RepliesI have a form with datagridview. I populate my datagrid with my dataset data.
Everything is going fine.
The only issue i found is.
if i lock the system and leave the form with datagridview containing data it it, and after some time (say 10 mins, when monitors goes to standby mode) if i unlock the system i see that the datagrid is empty. but a window with label has no effect its intact.
I have a VB.Net app that uses a MS Access 2003 DB along with OLEDB. My problem is that when I insert a record into a specific table, it sticks around for about 1 minute and then completely disappears. How in God's name does that happen? I'm using a DataGridView that is bound to a datasource. The Dataset that was created as a result of the Database I used from my connection string contains 4 datatables, one of which is used as the object of the code below
View 7 RepliesI have tried to test out the add delete and save function on a datagridview but the data that I added during testing would disappear after I made some changes to the code.
View 3 RepliesIn my datagrid view I set the header columns to speccific colors after the grid is filled:
frmMain.DataGridView1.Columns(gridCols.availableCGWP).HeaderCell.Style.BackColor = My.Settings.colorCgwp
frmMain.DataGridView1.Columns(gridCols.availableLacRec).HeaderCell.Style.BackColor = My.Settings.colorFiles
frmMain.DataGridView1.Columns(gridCols.availableCM).HeaderCell.Style.BackColor = My.Settings.colorCM[code]...
This has worked fine, until I set the "Enable XP visual styles" on the project properties page. With this set, the colors dissapear from the header (although they still show up correctly in the grid). If I turn the flag off, the header colors are back to normal.
Apparently, an unbound datagridview control cannot be filled at design time, so I have to create rows + fill cells through code. Currently, I use the following type of code to refer to cells:
[Code]...
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]...
I am working in vb.net, visual studio 2008, with the crystal reports that comes with it. I have a push model: creating a dataset, putting data into it, making that a report source, and putting the report source onto (or into) a crystal reports viewer control (not neccessarily in that order). It works -- for the first page that's displayed.That report has two pages. If I click on the control to go to the 2nd page (where I have no data displayed yet), then on the control to come back to the first page, it displays with no data -- just the background text is there.I can see my dataset-loading code executing in the debugger, and as near as I can tell the database is no longer giving me back any data
View 1 RepliesIf Page.IsPostBack = False Then[code]...
View 3 RepliesI'm trying to read rows in a DataGridView and the following error is thrown up. The DataGridView was filled from an Excel Sheet with a column of currency. Ideally when the For Next loop finds a cell it doesn't like, I want to to ignore and resume the loop. The error message is: Object reference not set to an instance of an object
HTML
Try
For Each row As DataGridViewRow In Me.DataGridView2.Rows
FirstString = row.Cells(0).Value.ToString
[CODE]...
I made a web application were you can check if somebody paid for their e-ticket and if so once you push the send mail button the person will receive his/her E-ticket with all the information regarding the activities they ordered.
I just have one problem the mail that I send collects data from a data grid and puts that in a static array.
Dim testarray(20, 1) As String
And of course the code to get the data from the data grid into the array
A part of the html code to send the e-mail is as following
"<br>" & "</br>" & "Tickets: " & "<span style=""font-size:14pt;"">" & testarray(0, 1) & "</span>" & "Activity: " & "<span style=""font-size:14pt;"">" & testarray(0, 0) & "</span>" & "." & "<br>" & "</br>" & "Tickets: " & "<span style=""font-size:14pt;"">" & testarray(1, 1) & "</span>" etc.
The Testarray(0, 1) and up are filled with the corresponding amount of tickets and for which activity. As you can understand if for example Testarray(1, 0) and Testarray (1, 1) do not exists because there is no corresponding ticket amount and activity in the grid. But Testarray(0, 0) and Testarray(0, 1) do exists, the person will still receive a empty line in his/her mail
Tickets: 5 : Activity: Sleeping
Tickets: Activity:
I know that with a dynamic array maybe I could fix that problem, I was wondering if there is a work around so I can check if a Testarray is empty or not and then only when its filled with data it will write the line into the e-mail.
When I connect to database located in SQL Server outsite from vb2008 project and when I run XAML Windows1 form the Listbox1 is empty. [code] When I connect to database located in vb2008 project and when I run Windows1 the Listbox1 is fill by data. How to fix that problem?
View 1 RepliesI have a Query that is in designe mode I have created 4 columns and formatting 4 columns also in datagrid view control now I want to use datasource of dgv control now when i defining datasource property with table then dgv control displaying my predefine columnas and adding 4 more columns in dgv for defining datasource.now presently to avoid autogenerating columns I definie the autogeneration column=false at this situation if i define datasource=table the no data is come up..so my query is it is possible to filled up data in predifned column using datasource property.
View 1 RepliesSo im trying to fill a combo box with data from a database but depending on how much a pregressbar is filled THis is what im trying:
Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Form1.ProgressBar9.Value <= 10 Then
Me.Level1TableAdapter.Fill(Me.CTDBDataSet1.Level1)
[code]....
i would like to know the syntax for this.i wanna add the values of 2 cells and then i will display their total in textbox.i have been trying to use datagridview.rows.cells but i cant just use it to add to cells values.
View 2 Repliesi wanna compare my cells in datagridview. I have a datagridview with n columns and n rows. I have my datagridview row value as Time . I need to compare all the row cell values with one particular time.
Here you go with an example.
if my dgv is filled with time values such as 3:42:10 AM 4:43:17 PM etc..I need to compare all the cell values to 5:00:00 PM. greater than condition. I need to highlight only the values which are greater than 5:00:00 PM but less than 3:30:00 AM.
I'm current in college and working on some computing coursework and putting the finishing touches on it when i stumbled across a bit of a problem.I'm trying to compare two cells in a database and i use datagridview to display the database in my form. The database is created by sql commands within my actual program if that makes any difference. What i have created for my coursework is a program that manages the stock and such for a small music shop and in the stock table im trying to compare values in two different collumns, but in the same rows. I need it to display a message box in the event that the value in the one cell is less than the other, which is basically checking if the stock for a certain CD has fallen below the reorder level.
View 1 RepliesI have 3 column Qty,Price and Amount and i need to compute the amount per line using DataGridView, what are the possible events I may use?
View 1 RepliesI am usinb VB 2010 How can I count the number of cells in a row.
My datagridview currently holds 10 numbers in each of 3 rows
The number of cells grows and I would like to be able to count how many cells are filled
All cells must contain a number
I'm trying to fill a DGV from a (List Of).. This is my code. It's not working & I don't know why..
Public AllBooks As New List(Of Book)
Public dgvInventory As New DataGridView
Private Sub BookDetails_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].......
I have a datagridview and I want to click on it BAD to jump to 4 cell, but to walkwith the arrows is normal, I did this because the KeyDown / UP does not work becausethe cells are in Edit Mode:
Private Sub DataGridView1_EditingControlShowing (ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) HandlesdgvContactos.EditingControlShowing
Dim EditingTxtBox The TextBox = CType (e.Control, TextBox)
[code]....
I'm completely newbie and I have been trying to solve a problem that is strongly related to what you guys had discussed here .
I have a datagridview (datagridview1) on my form and it is not linked to any database. I'm only trying to programatically enter values into the rows of the grid by values that my program generates.
For example if the value that my program generates is x, y, z then I would like to say something like[code]...
Get coordinate of any cells in datagridview?
View 8 Replies
