Editable Datagridview That's Been Databound With Dataadapter?
Nov 23, 2010
I have an editable datagridview that's been databound with dataadapter and datatable, and a normal button on a form. When i edit the dgv's cells and click the save button it fires the datagridview_cellvalidating event and if the cell validation is correct it updates and saves the current record to the datasource. Also, before save it commits change in any cell under editing.But when I use a toolstripbutton to do the same work, though it saves the dgv records but doesn't update the current change i.e. it saves the old records that are being fetched when the dgv was populated first during form load. Also, clicking the toolstripbutton doesn't fire datagridview_cellvalidating, datagridview_rowvalidating etc events.
What it seems to be is it's not commiting the change in any cell under
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Mar 9, 2012
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But this makes every cell in column editable. Is there a way i can make some cells editable in column? If you know how to do it,
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Jun 1, 2011
How to make some columns in datagridview editable and some columns are non-editable in the same datagridview control??
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Mar 9, 2012
I'm using VB.Net.'m using DataGridView with ColumnType = DataGridViewTextBoxColumn.
I have 3 columns. Column1, Column2, Column3. for example:
Column1 Column2 Column3
1 AA AAA
2 BB EDIT
3 CC CCC
If column3's value = "EDIT", then I need to edit only that cell. Here for example: i need to make the Column3's second cell to be readonly=false.So i cannot make any changes to (1, AA, AAA), (3, CC, CCC) and (2, BB). Need to make changes only EDIT cell.I tried this code. CountR is the row in which EDIT values is there.
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Aug 3, 2010
How to make linkcell editable in datagridview.
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Jan 19, 2009
Code to add a new row to my datagrid on click of add button. I am not binding my grid to a datasource.I m fetching values from the database through a datatable n then through a lood inserting t values to my datagrid. i m not binding the entire datatable as my datasource for the grid.
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Apr 11, 2011
I have a DataGridView that displays data from a SQL Server database. It allows the user to edit the data and save it back to the database. The way that data gets saved back to the database is something like this:
Dim da As New SqlDataAdapter
Dim cmdBuilder As New SqlCommandBuilder(da)
da.SelectCommand = New SqlCommand(sql, conn)
da.InsertCommand = cmdBuilder.GetInsertCommand
da.UpdateCommand = cmdBuilder.GetUpdateCommand
Dim cb As SqlCommandBuilder = New SqlCommandBuilder(da)
da.Update(dt)
This works fine when I'm saving to ordinary tables. However I also want to save to a view that has an instead of trigger that fires on insert, update and delete. When I try to use the above with this view I get the error:
"Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information."
How can I save to this view? I don't want to save directly to the underlying table because I want the trigger to fire.
I also tried manually generating the InsertCommand and UpdateCommand, but got the same error. It turned out I got the commands wrong when I manually generated them. Once I fixed that it worked fine - my view gets updated and the trigger fires as expected. I guess that you just can't autogenerate the commands for a view with SqlCommandBuilder.
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Oct 7, 2011
I need to display an two-column editable grid not bound to a database. I took a look at ListView with Mode=Details, but it appears that only cells in the first column can be edited. I then took a look at DataGridView, and am having two issues:
1. When editing a cell, it adds a new row: [url] How can I prevent this?
2. I don't like the grey background and would like the grid to fill the whole space, right and below.
BTW, if you know of a good tutorial on using the DataGridView unbound, I'm interested. [Code]
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Jun 21, 2010
Any tutorial and maybe a sample project that can be downloaded that shows how to update a database such as MS Access from DataAdapter commands in which changes are made in a DataGridView? For example, the DataAdapter contains 2 tables called FirstTable and the other table would be called SecondTable. The DataGridView is based on a query that shows rows from both tables. The actual table that contains the rows to be changed, inserted or deleted is FirstTable.
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Dec 8, 2009
I populate a datagridview using a bindingsource and dataadapter. So I join 3 tables in the view to get the data i need.
so I have my view as a child table in my dataset. and a table called classes which is the parent table. So when I select a Class(class 1A for example), my datagridview displays the pupils in that class.
Now i need to add another relationship in the dataset. so when I select a day in a monthcalendar, I need to add 5 checkbox columns for each day to my datagridview. Should I add these 5 columns to my datatable? i'm not sure what the best way is.
Then for each day I tick I have to save to my pupil_job_day table. I will save the peoleid,their accountid and the date. please help me
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Dec 6, 2010
I have a datagridview which is bound to a table in a database. In said table, I have a field called Date and a field called Time, among other various fields. By default, I see that VB.NET attempts to help me by formatting the Date and Time columns for me, however I would like to do it my own way. I checked the columns' DefaultCellStyle fields and found them blank. Apparently, its current behavior is defined elsewhere. How would I go about removing the default formatting that VB.NET put in place to make room for my own?
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Sep 13, 2010
I have a table 'WeekPayment' bound to a DGV having following fields:
EmpID
EmpName
Wages
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Jun 23, 2010
I'm having some problems with a data bound datagridview.My current scenario is the following..The itemSetup has tree properties {ItemNo, CompNo, LocNo}(compno locno are not required)I have a datagridview with a datasource list of itemSetup And this has two comboxes cboCompany that is bound to a list of company the selected value is bound to compno. cboLocation that is bound to a list of locations the selected value is bound to locno the location class requires the compno to create the list of location the problem I run in o is that the when the compno is Nothing the cboCompany throw a datagridview_ dataerror when the form is loaded en when a item is added it looks like the binding of the combox runs later then the value is set.
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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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Dec 19, 2011
I'm working on pasting into a datagridview. I know you can't paste right into the datagridview, but that you have to paste the clipboard into the dataset. I'm having no problem with all of that. My problem happens with the arrays. Just so you can see what is going on, I'm going to post my code now.
Private Sub PasteToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PasteToolStripMenuItem.Click
If String.IsNullOrEmpty(Clipboard.GetText.ToString) Then
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Aug 26, 2010
I have an application putting new data into a database so I want to use a DataGridView to display the data. I have a timer triggering every 5 seconds and running this UpdateGridFromDatabase() routine every cycle.
It works, but I can see my application memory usage going up by 10kB every 5 seconds until my computer with 6GB of RAm & 64 bit Windows 7 grinds to a halt! Can anyone see at a glance what I am doing wrong? I am trying to open & close everything as necessary. I have also dimmed two variables outside - I had then inside previously and it didn't make any difference.
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Jan 28, 2009
I have a DataGridView on a form in VB 2005 Express, of the 10 columns i need on this DGV 6 of them will be pulled from an MSSQL DB and 4 of them i need to manually enter. One thing i have going for me (i think) is that the 4 manual columns have the same data in each row.I have been filling this DGV using a datatable, but i am not figuring out how to add manual columns and databound ones in the same DGV. My column layout would look like this:[code]some one please explain to me how i would do something like this. if you can include the datatable definitions also it would be a big help, in order for me to verify that i am at least doing that the right way.
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Jun 4, 2011
I have created an Unbound DataGridView. It has has 4 Columns Name, Last Name, Picture, CheckBox. I would like to do change the checkbox's enabled state true or false (editable or not) at the time I add the row
Not its checked state :) and would also like to change image that is placed in the Image column cell during the add row.
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Jun 29, 2010
i need expert opinion on saving data to database though efficient method/professional approach.I'm saving data using following code.[code]There are some other ways like, use Insert query, i want to know does above mentioned method take too much resources, or make db unnecessary busy
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Nov 19, 2010
My DataGridView is not sorting my date column correclty and it doesn't seem to be sorting it by String either. The column is bound to a date property, all is done using the designer.The set which I'm viewing it on is 424 entries long, there should be two entries for each date and they should be next to each other (regardless if sorting by date or string)The last few dozen entries are sorted correctly but the initial entries are not.Initially every second entry at the start is correct. Here is an extract if some of the sorting it does.(The beginning of the sorted grid is on the left, and the end of grid is on the right)
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Apr 27, 2010
I've inherited a form that has a DataGridView that is bound to a dataadapter and it is connected to a binding source. Within the DataGridView is a combo box that is bound to its own bindingsource which basically just calls a stored proc to bring back the possible values for the dropdown combo control
With a blank new row and sometimes even with an existing row, this value for the combo box can be NULL which is a legitimate value for it if no value selected. Problem is everything is so tightly bound if the user mistakinly clicks the dropdown then a value is populated and there's no way to get back to NULL
I've tried to catch the mousecelldown event and others to try to catch this before a value is selected but the Cancel=True doesn't work - I can catch the event but don't know how to return the cell to unclicked or reset it to NULL or pre selected value if NULL I know how to at a new row with the datatable and then set the combo datasource to it and I have my null blank value but with a tightly bound control how do I add this row?
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Jul 21, 2010
I have a DataGridView control that is bound to a dataset that I set up in design mode. This grid will contain addresses for a client. The relationship is 1 client to many addresses. So, when the user selects a client, I wish for this grid to populate with only the address records for that client. How do I set up in code a way for the grid to recognize this?
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Feb 7, 2010
I am having trouble adding a row to a databound datagridview on a parent form from a child form. I have two forms, one contains a datagridview that is bound to a table using 'datagridviewbindingsource' and contains an 'add' button. The second contains a checked listbox that is populated correctly and has a "Cancel" and an 'OK' button - when i check several items in the child form, i would like to hit okay and update the bindingsource of the datagridview on the first form with the checked items.
Code:
in form1 when btnAdd is clicked
dim f2 as new form2
'call it as a dialog to check for the cancel button
f2.ShowDialog()
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Mar 23, 2010
1. Can someone show me sample codes on how to do that ?
2. I encountered a problem with the INSERT sql statement. I keep receiving syntax error in insert statement exception. Is there anything wrong with the statement ?
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Apr 29, 2011
I have been following this tutorial: [URL]..I have been able to complete this tutorial, but I wanted to take it to the next level by making this grid editable and I am not sure how to do this.Is there a way to make the grid editable?
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Feb 17, 2012
i have my project working fine in vb6,,but when i try to convert it ..well you know what happens 99.9% of the time.Anyhow all i have been able to get working is the code below.which basically just throws a textbox up onto the listview where ever the mouse is clicked at..but i can't figure out how to get it to lock into any of the cells,columns etc.can someone just show me the simplest way to get the textbox to lock into the cell that the mouse clicks on..or subitem etc.I have no more hair to pull out..I'd start pulling teeth..but I'm already passed that option too
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Aug 15, 2011
i want to listview editable it's possible??
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Aug 10, 2010
I have an application with several forms. The form Main.vb has always been editable in the designer. However, this has changed. The icon in front of the name has changed to a module icon, and the designer and code are no longer found. When I run the application, it still functions as expected.
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Oct 30, 2009
how to create an editable combobox that remembers up to 10 previous entries (Like the address bar in Internet Explorer).
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Jan 13, 2009
What do I need to do to make the following column editable.
Dim tableStyle As New DataGridTableStyle()
tableStyle.MappingName = "product"
'Product Code
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