Wpf - Catching Which Cell Changed In Editable Datagrid?
Mar 6, 2012
I have an editable DataGrid in a VB WPF application. The DataGrid itself has its SourceUpdated property set to my event handler. 2 of the columns in the grid are editable and have their NotifyOnSourceUpdated flag in the Binding set to True. The event is firing properly, but I can't seem to figure out the best way to determine what has changed. The 2 columns depend on each other in that one of them is an item quantity and the other is a case quantity. If the user changes one of them I want to re-compute the other value and update the grid as well as the binding source. I'm sure there are a number of ways to handle this, but I'm curious what is the best way. I could listen for change event on the datagrid, see what changed, set some variables, and then use those in the SourceUpdated event, but that doesn't seem elegant.
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Mar 9, 2012
[Code]...
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 13, 2011
Basically I am looking for if I click on my checkbox, it should reset my datagrid column lastseqno to 0. Is it possible?
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Feb 18, 2012
Private _pages As New List(Of Panel)
Public ReadOnly Property pages() As List(Of Panel)
Get
[code].....
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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.
[Code]...
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Aug 15, 2011
i want to listview editable it's possible??
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Jul 15, 2009
we display a decimal(11.25) value in the grid . When we try to edit that cell its displaying only (11).Its not showing the decimal value when we try to edit that cell.
How to format that cell ?
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Apr 24, 2012
I'm sitting in a VB-project and i have a ListView with 3 cells; a checkbox, a name and another text value. I want the last cell to be editable for the user. The second cell is also okay to have editable, no problems at all.
How can i set cells to be editable?[code]...
Any tips how to let the user change the last (or both second and last) cell?
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Jul 28, 2009
I would like to know how to make the cell editable for a gridview. like can type data right into the grid...
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Jul 18, 2011
I am using a DevExpress (10.2) Treelist in my VB.Net project in Visual Studio 2008. I currently have a treelist with TreeList.OptionsBehavior.Editable = True. I have two columns were the first one is AllowEdit = False. The second column I am setting the AllowEdit and ReadOnly dynamically though the action FocusedNodeChanged.
Within the FocusedNodeChange subroutine I check if a specific value is in the row and if so I set it to be editable or non-editable. I am setting it to be editable with[code]...
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Jun 1, 2010
The problem is that if you never enter anything into a cell for a new row then that cell is never validated. This is a problem because I have columns that should not be null. I am doing the check in the row level validation and storing the information about which cells are empty that should not be empty. The row level validation works fine and the row level validation error indicator goes on,(red exclamation mark at the beginning of the row) but I also need a visual indicator on the individual cells that are in error.
I am thinking that setting the HasError property for the cells that are in error should cause them to display n error style (the default red border). Is there a way to this this either from XAML (perferably) or from code?Alternatively I could cause those cells to re-validate when the row editing is finished. Does anyone know how to do this?
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Aug 2, 2011
I have a datagrid that will be accepting data from an external measuring device via the serial port. The grid is also open to editing records as well. Part of the process of making this grid user friendly is to intercept the "enter" key and move to the next cell until there is a value in the cell. This is only for some cells, other cells can be blank. I have worked out how to intercept the "enter" key from another post on this forum. Here is the code:
[Code]...
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Aug 15, 2011
I have searched alot but can only find info on moving entire rows bound between 2 datagrids, but noting on moving single cells. I have some code below that works ok from DGV to textboxes but not from DGV1 to DGV2.
Dim i As Integer
i = DataGridView1.CurrentRow.Index
Form3.DataGridView1.Item(1, i).Value = DataGridView1.Item(0, i).Value
[code].....
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Dec 15, 2011
]Is that possible to highlight the row when the cell value is change ?
Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
Dim update As New dboperation
[Code]....
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Aug 9, 2011
i'm using vb 2010 to write a program for my school. i'm asking the teachers to key in their student's curricular activities into a program through datagridview. i manage to restrict the code they enter by validating it in the datagridview cellvaluechanged event handler. my idea is as follow.
1. teacher enters code in the datagrid.
2. vb check the the value and if it is in the database then update. if not then give a preset value "-1" as no record.
these are my code...
Private Sub DataGridView1_CellValueChanged(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellValueChanged
Dim Cn As New ADODB.Connection
[Code]....
my problem is... is there a way so that when the teacher enters an INVALID CODE and leaves the cell by mean of pressing "enter" or by clicking at other cells, the cell edited before is remain focused and the value before is revert back?
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Jun 13, 2011
I have the following code on the SaveItem_Click event of the BindingNavigator..[code]how can i adapt the code to also save any other cell changes on the DGV existing rows (even if the row is not new)?
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Aug 2, 2011
vb.net
Private Sub DataGridView1_CellValueChanged _
(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _
Handles DataGridView1.CellValueChanged
[code]....
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Jun 13, 2011
I'm using a DGV and i'm looking for the best way to update the database whenever a new row is created OR whenever any datagrid view cell changes.
The following code works fine for new rows and my question is how can i adapt it to include ANY other changed cells of any other rows being or not new rows.
If Me.PECASDataGridView.CurrentRow.IsNewRow = True Then
Me.Validate()
Me.PECASBindingSource.EndEdit()
[Code].....
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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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Jan 5, 2010
I want to edit values in datagrid in VB.NET and also want to save changed value in database. How can i do it?
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Mar 24, 2012
I have one data grid which contains a column which contains long string values. When I edit it, the text box which appears is very small. I want to increase the length of text box.
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Oct 30, 2009
I am trying to get the cell value from a particular cell in a DataGridView table but am having a little problem with the syntax.My research suggests that I need to use the command:
DataGridView.Rows.Item("Index of Row").Cells.Item("Name of Column").CellValue
but when I create the command:
x = DataGridView1.Rows.Item(0).Cells.Item("Dec").CellValue
[code].....
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Nov 4, 2011
am converting a old vb.net program to WPF and am having trouble. I imported some data to a datatable and dumped that into a datagrid. I now need to go row by row and extract the cell values and use them to update the appropriate database record. This was working in my old program using:
For i = 0 To DataGridView1.Rows.Count - 1
cellvalue = Me.datagrid.Items(i).Cells(8).Value).ToString
(insert to database) etc
[code]......
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Nov 24, 2009
Using VB.NET How to get Datagridview cell value.
I want to insert a Datagridcell value in the table, How to get datagridview cell value.
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Apr 1, 2011
I am creating a POS system, but there are a couple of things that I cannot get my sales form to do. It contains a datagrid view of the table containing columns code, description, Qty, total. After the code has been entered, I want it to load the description automatically. After the Quantity has been entered, I want it to give the total amount for that Item + the total amount for this order.
[Code]...
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Apr 23, 2008
I have created datagridview in vb.net. and I want to create combobox for one particular field or cell.
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Aug 19, 2009
This is mis system projectcell painting in datagrid when error while calculating datai have made a datagrid with 7 columns firstly 7 r with values 0 at beginning when user enters input then in the datagrid with first 6 columns & 7 one with total i.e. total (column 7) = col1 + ...to Col7now, when the total entered by user is different from total it should match itif same then no cellpainting is done
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Aug 11, 2011
how can i store 1,1,1 in quantity column in db using datagrid i.e when i type 1,1,1 in datagrid cell it automatically formats it like 111 but i want 1,1,1
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Aug 11, 2011
how can i store 1,1,1 in quantity column in db using datagrid i.e when i type 1,1,1 in datagrid cell it automatically formats it like 111 but i want 1,1,1
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Apr 28, 2012
I have a Data Grid That have columns that have check box. I would like to disable the check box on a certain condition. I have a SQL DB that I get from it a DataSet then I fill the data set inside the Data Grid. Here is some of my code
Dim loopRow As Integer = ds.Tables(0).Rows.Count - 1
Dim ColDS As New DataColumn("Status")
ds.Tables(0).Columns.Add(ColDS)[code]....
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