Refreshing DataGridView After Editing A Record?
Mar 12, 2011
I have a DataGridView bound to a datatable which comes from an SQL Server database.When the user edits a record my update statement changes the field datetimemodified to reflect the last date and time the record was edited (as stored procedure). The new value for datetimemodified is not brought into my DataGridView.
1) How do I refresh a DataGridView bound to a DataTable? Is there any way to refresh or resync only records that have changed instead of the entire DataTable? (Note: my update statement is working fine. I'm only wondering about refreshing the DataGridView.)
2) Would it be better to change the value of DateTimeModified on the client side so that I can avoid a refresh (assuming that this is the only reason I need to refresh the data)?
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Sep 9, 2011
I'm using the following code to add a new record to a table in the database. However, the DataGridviewthat's binded to the DataTable, isn't getting refreshed /updated.[code]...
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Jun 21, 2010
I am having problems editting my record where i basically want to select a record from the datagrid view and change any details where the data is displayed in the text boxes i have put on my form and click edit and have the data updated on to the database as well as the dataset. As for my updating button the code seems ok but i check my database and it doesnt change. Here is my code where the edit and update button code are at the bottom:
Imports System.Data.OleDb
Public Class Stock_Control
Dim dbConnection As OleDbConnection
[CODE].....................
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May 30, 2011
in my visual basic 2008 express edition project I have 2 forms (paxreportfrm,paxsearchfrm).I want to give inputs in paxreportfrm and save the record(which is working fine).then in paxsearchfrm i want to search depending on multiple criteria (working ok).when i click on the record which is in gridview in the search form,opens up the paxreportfrm again with all the details of that specific record (working fine). Now i want to update the existing record which has been populated from the gridviw of the paxsearchfrm and also want to have the option to delete the record.I am using the datacontrols(wizard) to make connection with the access2007 database.can someone give me some example of how to do the Edit and delete in the database pls.I already have a save button on the paxreportfrm(if i click on that, after changing the details on existing record, it just saves IT as a new record).so i really need something which will actually save the modifications on the existing record AND ALSO WILL BE ABLE TO DELETE IT FROM THE database. I have tried couple of methods but none of them are working.
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Feb 27, 2009
I have problem, when i click on save it gives me an error.'Cannot perform '=' operation on System.Int64 and System.String.'My code looks as follow....
vb.net
Private Sub ItemsBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ItemsBindingNavigatorSaveItem.Click
[code].....
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Jan 30, 2010
I am using Visual Basic 2009 to create a file of records to store students tests scores.Currently i can write to the file, create new records etc. However i cannot edit a particular record, im sure i have to use file seek function but i have no idea where to start.here is some of my source code to give you an idea of where im at
Do While (Not EOF(1)) And found = False 'loop until no more records or the record is found
nosrecords = nosrecords + 1
FileGet(1, onestudent, nosrecords)[code].....
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Jul 26, 2010
I have a form that uses a tab control. On the main tab is a DataGridView containing Customer information. If I double-click on a row in that DGV, I go to another tab in which I can either make changes or delete the record. Whatever I do, whether it be delete it or modify it, after clicking on the appropriate command button, focus goes back to the main tab. What I wish to do is have the changes be reflected on that DGV. If the record is deleted then I want the DGV to not have that record present. This DGV is bound to a BindingSource. What control/dataset to I need to "Refresh" in order for this to happen?
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Jun 12, 2011
I need to "refresh" a DataGridView, bound to a database table, on a form within a TabControl The DataGridView is loaded correctly on strartup... But if the data in the DataBase change, How do I refresh it to reflect new records or updates?
this is what I am doing in code, after looking for some examples on the web:
MyTabBindingSource.EndEdit()
Me.MyTableAdapter.ClearBeforeFill = True
Me.MyTableAdapter.Fill(Me.MyDataSet.MyTable)
[Code]....
but nothing changes at all...Do I need to refresh/repaint the TabControl as well as th Form containing it? or what else??
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Sep 11, 2010
I have a datagridview control on my form which i have populated it with values from a dataset. Now i am using a button to delete these values from the database which is working perfectly for me but the problem now is anytime i delete the old value still shows in the datagrid which shouldn't be so so i wrote the code to refresh the grid after deleting but is still not working for me as i want.
I am using this code:
Me.UserAccountsDataGridView1.Refresh()
But onething is the value i deleted doesn't show when the form reloads again. but at run time it still has the old value in it again.
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Jan 24, 2011
I am trying to refresh a datagridview from a second form to display newly written data. I have read the posts on this topic and can't figure mine out. My first form opens and you input data into text fields, etc. and then you need to select items from one table to copy and write to a new table. The datgridview on the first form shows the new table, and I have a new form that pops up to select the line items to add. Everything works perfectly except when I close the selection form after selecting lines, I would like the datgridview on the first form to refresh to show that the lines have been selected and displayed in the datagrid.
My data is loaded into the datagridview as so;
Public
Sub ShowVoucherLines()
cmd =
[Code]......
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Apr 20, 2010
I am attempting to refresh my datagridview but it does not seem to work. I have a separate frm where people insert data, and then I have a button on the main frm where people can click refresh once the other frm is closed. I click refresh and yet the data does not update in the datagridview
Private
Sub
KryptonButton3_Click_1(ByVal
sender As
[Code[.....
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Oct 6, 2010
I have a datagridview on a form that is bound to a table in a dataset from another class.I use a data adapter to .Fill a table in that dataset and the grid displays the data fine.Works fine.On my form I have a textbox the user can type in that will will pass a parameter to the storedprocedure used to fill this table. So on startup the textbox will have "%" in it. and then the user can type in "F%" and get everything that starts with an "F"
So when that textbox changes I launch an async refresh (.BeginInvoke) to do my refresh. The table gets populated with the reduced number of records (I check ds.table(0).rows.count and it is correct)
But the datagridview then starts throwing datagridview.dataerror events. "System.IndexOutofRangeException : Index # does not have a value".It looks like the dataset is getting filled correctly and not having any issues, but the datagrid is not liking this update. The index out of range error is so common that I'm not finding what I need through searches.
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Oct 13, 2011
I'm facing a problem with a datagridview datasorce, or refreshing it. I'll try to explain what is happening. So I have a datagridview called dgvMaterials, I'm binding datasorce to the datagridview from one table in mySQL server. Here is the code:
Dim ds As New DataSet
Private Sub frmSettings_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
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Jun 11, 2010
Dim myQuery = "UPDATE table1 SET data= CONCAT (data,'" & vbCrLf & "[ " & Date.Now() & " ]" & " " & "[" & getCN() & "]" & " " & txtTelenotes.Text & "[ item1 ]" & "') WHERE id='" & txtID.Text & "'"
[code].....
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Mar 28, 2011
I have a Data Grid View that is attached to a binding source. The binding source is pulling from an SQL database. The form I'm creating has a bunch of text boxes and then a record button which records the information back into the sql database. After the record button is pushed I want to have the datagridview pull the data again from the SQL database to pickup the new information. The BS has another BS for its data source, the other BS has another BS for its data source. That final BS has the DataSet for its data source....
BS3 --> BS2 --> BS1 --> DataSet...?
The .refresh for the datagridview does not pull in the information. I do have a filter applied to the binding source that the data gridview is pulling from.
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Mar 5, 2011
the Datagridview is included in first tabpage. first tabpage is the search form and the second tabpage is the record detail view. user is switching and working between those two continuously.
The problem is that everytime user selects the tabpage1 the datagridview repaints itself. there is about 6000 rows in datagridview so it takes about 2-3 sec to paint itself. I know the delay is normal and can't avoid that. but it affects the tabpage selection. tabpage1 isn't selected completely until the Datagridview1 finishes it job. in this time the tabpage1 and tabpage2 gets combined and confused.
is there a way to put datagridview processing in backgroundworker or something that doesn't affect main UI ?
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Dec 14, 2010
I have created in Visual Basic .net a new DataGridView in my form. I have used the wizard to show some fields of a table in my access database.I would like to add a refresh button and force the datagrid to load the data again from the database, but I'm not sure how to do that. I have tried several refresh method but it does not work.
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Mar 1, 2012
Im making scraper that should get values with regex to datagrid, but after getting first value, it doesnt update datagrid untill I click there or use ctrl + a to select all.
[Code]...
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Apr 16, 2011
I'm maintaining a Datagridview on my Windows Form. When I open the form all the contained records are displaying, which is from SQLserver Table ok. when I open the form the datagridview should show just black and after I insert a new record that particular record should only display on that form gridview. [Code]
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Apr 19, 2010
I have a form which contains a populated datagridview and I have a button that calls a second form in which I want to be able to add additional rows to the first form's rows.My form2 has about 10 text boxes which the user will use to add columns in a new row...How can I capture the 10 textbox's information and add a row with 10 columns to display the textbox's info?
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Nov 2, 2009
i am working on datagridview vb.net 2005 i am trying to modify the data with datagridview control the problem is the data is virtually modified in datagridview but no Change happened in my sql server 2005 database
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Nov 13, 2010
I have a DataGridView bound to an Access Database. I have also added a button to allow adding a new column. However, when i save the databound datagridview, the new column doesn't save. How can I fix this?
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May 24, 2012
i use a button to execute the update command for editing the row of the sql table. The row is update when i click the button, but the datagridview is not show the update of that row automatically, so i want to know how to refresh the datagridview when the table is update by just clicking a button.Here is the code below i use for editing the row :
Private Sub editbtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles editbtn.Click
If serialnotxt.Text = "" Then
MsgBox("please enter the enter serial no and click search")
[code]....
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Feb 5, 2010
I'm trying to add functionality to my DGV that enables the user to edit the cell data and then save it to the datasource but I'm not getting very far. Right now, I'm just concerned with the editing the DGV part.
What's the best way to do this taking into consideration: A column of type date in hh:mm format will not edit. At the moment this column won't display the new edit and if I attempt to enter and display a string instead of a hh:mm rime format, I get an error)I need to provide validation for the value that is entered.There are loads of events for DGV cells
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Dec 17, 2010
I want to only allow editing of one column in my DataGridView, but I want to allow the user to double click on any item in the row, and when the CellBeginEdit fires, force editing of my colum. I started by doing this:
Private Sub dgvCaptions_CellBeginEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellCancelEventArgs) Handles dgvCaptions.CellBeginEdit
If e.ColumnIndex <> COL_CAPTION Then[code].....
But this throws an error in the BeginEdit(False) line because 'Operation is not valid because it results in a reentrant call to the BeginEdit function.' which of course it will do, but that is what I want. Is there another way to do this?
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Mar 26, 2012
I have a problem with the database and the DataGridView. After editing the attributes of the database you can not see changes in the DataGridView. If you connect the DataGridView through code connection is correct. What could be the reason? What could be the fault of pliu nmd_piDataSet?
(When I plug the same database under a different name everything works as it should.) I have a table with about 20 columns and I can easily edit szeroość, view columns, using the code is problematic and not so intuitive. [Code]
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Apr 22, 2010
I am using vb2005 with ms access database.I have a datagridview to show the reports for users.One of my datagridview coloumn is to be allowed for change the string value. Currently editing is disabled.Which is the best method to change the value of that particular cell and updating the same with database.
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Nov 26, 2009
I am using vb2005 with ms access database.I have a datagridview to show the reports for users.One of my datagridview coloumn is to be allowed for change the string value. Currently editing is disabled.
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Mar 10, 2012
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.
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Feb 10, 2010
I'm having problems editing the text of a particular column in a datagridview from the front end. The text enters ok but as soon as the cell loses focus it goes back to the old value. The datagrid view readonly property is set to false and I don't have any problem writing to the other columns.
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