Bindingsource.addrow Produces A Row In Datagridview Whose "IsNewRow" Property Is False?
Jan 16, 2010
vb.net 2005 sql 2005 developer.I've done at least 30-40 grids for my clients so i am not exactly new to this.i have an empty bound grid. bound via the drag and drop ide.I click on a button that does an addnew to the bindingsource of the grid.The new row appears filled with empty cells.I want to know how to determine what is the state of the row.
Immeadiately after the addnew, the rows.count is now 1. the value for dgv.rows(0).IsNewRow is false?At this point if i do a bindingsource.canceledit the row dissapears and all is well.If i enter a valid value for some of the rows but not for all of the rows,i hit the uparrow, something happens and the dataerror event is fired. again if i execute a bindingsource.canceledit then the row dissappears and the integrity is ok.If instead of using the up arrow, i click away to lets say cancel button, some strange things begins to happen.The dataerror routine files before the cancel button click event fires.If the row contains valid data then the dataerror event is not fired and the cancel button click event fires.So i am trying to have one button called "delete row".I want it to be able to remove the current row regardless of what state it is in.
If it is still in its add mode then a cancel edit will do. If it has been updated from the grid down to the datatable, then the same is true, a bindingsource.canceledit will work If the row has been pushed out to the sql server, then i have to remove the row in a different way.One such way is to use the datagridview's rows.removeat method.I need to distinguish between a row that is brand new and has not been edited at all from one that is new but has data in it and then the one who has been updated all the way to the server. Bindingsource.CancelEdit and DataGridView.Rows.RemoveAt([currentrow]) are my tools IsNewRow doesnt seem to work.after the bindingsource.addnew, where is the row in the binding source? the Item collection does not have it. The currencymanager.count is still zero?
View 2 Replies
ADVERTISEMENT
Mar 21, 2011
Having an issue with my data gridview. I've set the visible property of the ID column to false, and in the designer the column is hidden, yet it still shows up when i run it. Now if i set it to True it shows the column twice.
View 3 Replies
Aug 21, 2010
I can't understand is it VB 2008 bug or I am doing something wrong.But code like:
if datagridview1.CurrentRow.IsNewRow=true then msgbox "That is new row!"
View 4 Replies
Aug 20, 2010
I want to delete rows in datagridview by clicking button. Have found on some sites code like:
[Code]...
But if CurrentCell is on new row and I click to delete row - it's deleting that row that is standing before current selected cell. It means that dgv.CurrentRow.IsNewRow is not showing is realy currentRow new or not! But why? Old VB version? I am using VB Professional 2008
View 2 Replies
Feb 24, 2010
I'm trying to make a program where I draw an image from a SpriteID. The way I usually do this with a method is by doing this:PictureBox1.Image - Util.SpriteReader.GetSpriteImage(2334)
This works fine, but I need to make it work through a Bindingsource and my class. So the Bindingsource is setup, everything is working but the image part. I set the "Image" in the DataBinding of the picturebox to my "Image" property... Heres my properties
Public _ItemID As Integer
Public _Image as Image
Public Property ItemID() As Integer
[Code]...
View 2 Replies
Apr 18, 2012
got a property with Localizable set to false however it still appears in the resource file,If I look at his msdn link it says :.. "By default, members that have no localizable attribute or are marked with the LocalizableAttribute se
View 4 Replies
Jun 27, 2009
I've set the property for my form to Me.ShowInTaskbar = False, and the app still shows up in the taskmanager.
View 2 Replies
Aug 11, 2009
I have a control which validates the data entered and it is working. I created a Close Button and set the Cause Validation property to False. The validation keeps on running even though the property is set to false. As a matter of fact, it happens to all the controls as if there is a bug in VB.Net.
View 10 Replies
Sep 17, 2011
Can someone clarify if there is ever a need for the below?
When setting a textbox "Visible" property to False is there any reason why I should also set the "Enabled" property to false.
View 2 Replies
Mar 25, 2012
I am stumped on this one. I have a panel (pnlKeyPad) that won't change the visible property when I try to set it to True. But when I try to set the Dock Property to DockStyle.Fill it succeeds. I have tried them in different orders, setting the parent property to the splitpanel and nothing seems to fix it. The panel is on a splitpanel that is visible. The panel is set to visible = false by default.
Any ideas of why this panel won't switch to visible when I specifically set it to visible?[code]...
View 1 Replies
Mar 10, 2009
In VB6, you can set the Default property of a command button to True / False, and when you push the enter key, it will click the button for you.
What property is this in VBNet / C#?
View 3 Replies
Aug 11, 2011
I know how to turn a control's visible property to true or false, the only thing I don't know is: If I have, for instance, 40 group boxes in which only one is visible, when I click on a button, the first group box visible = false and the second group box visible = true, and when I click on it again, the second group box visible = false and the third group box visible = true, and so on I don't want to write the codes for every controls, since it will be quite time consuming, I want to use fewer codes to achieve this objective,
View 10 Replies
Feb 28, 2011
I have the following code on a form:
Public Sub Init(ByVal SelectedItems As List(Of Cheque))
Items = New BindingList(Of Cheque)(SelectedItems )
BindingSource1.DataSource = Items
[code]....
This code gets called like so:
...
fmEdit.Init(myList)
fmEdit.Show()
All variables are populated etc, it seems to go through the DataBindings.Add ok but when the form appears I get the error about unable to bind to a property or column called Id. I tried replacing the DataBindings.Add code to use the BindingSource1 instead of Items but I get a similar error.The names of the properties in the class match that of the name in the Databindings.Add code.
UPDATE: Here is my class:
Public Class Cheque
Public Id As String
Public Status As Byte
[code]....
View 1 Replies
Dec 12, 2010
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)
View 5 Replies
Jan 6, 2011
how to retrieve the selected row cell value if it is visible property is false in gridview ?
View 1 Replies
Apr 4, 2011
i have problem when addnew row at keyup event for datagridview control. i want to add one row when method addRow() called.
View 2 Replies
Oct 28, 2010
Here is my
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim NewRow As TimeClockDataSet.EmployeesRow
NewRow = TimeClockDataSet.Employees.NewRow
[CODE]...............
I have experimented with other classes but I cannot get the database to update.
View 1 Replies
Jun 18, 2009
DataGridViewRow.IsNewRow property is set for the bottom (empty) row. If I set a cell value in the bottom row using DataGridViewCell.Value, IsNewRow remains set. What is the correct way to programatically set a cell value in the botton row to clear IsNewRow?
View 4 Replies
Mar 21, 2012
I am trying to display a football league table in datagridview. my code gets that data for each column from ms access and displays it in datagridview. I want to sort rows according to the value of the "pts" column.I've tried using using BindingSource.Sort = "pts" but this has had no effect.
[Code]...
View 1 Replies
Jul 19, 2011
I have this class binded to a DataGridView with a BindingSource, what I'm trying to do is make the _SelectedMethod property a ComboBox in the GridView, and then make the items people are able to select from the ComboBox come from _Dictionary.here is my class which is binded to a DataGridView via a BindingSource.
[Code]...
View 2 Replies
Jun 3, 2008
I have a datagridview1 and search textbox1 on my form On form load I need to fill datagridview1
* with absolute path+filename of certain filetypes like *.jpg,png,gif,bmp
* in a specific directory like Application.StartupPath & "Images"
When user types in search textbox1
* datagridview1 contents need to be continuously filtered to match searchstring
View 8 Replies
Mar 21, 2012
I have a BindingSource1 and a DataGridView1.
[Code]...
View 4 Replies
Jun 10, 2010
How do I update a field in the underlying bindingsource for rows selected in a datagridview.
I can do it for single row in the bindingsource but not for several selected rows in the datagridview.
bindingsource.table.current is usually the current row in the datagridview
View 1 Replies
Apr 12, 2011
tried in many ways and I know that very soon will succeed. at least I am very resourceful showing that ...... Please help me correct this code. because the DataGridView throws I query the data are in the range of dates
Option Explicit On
Option Strict On
Imports System.Data
Imports System.Data.SqlClient
[code]....
View 7 Replies
Jun 19, 2010
A DataGridView in my VB.NET 2008 program contains over 15,000 rows. I loop through the rows, totalling groups of rows and appending 'total rows' and one 'Final total row' to the DataGridView. That works fine. I want to initially hide all rows except for the total rows, giving the user the option to show all 'detail' rows. If i place the statement << dgvTitleCounts.Rows(intRow).Visible = False >> in the loop, execution time increases by three minutes and that is unacceptable.
I see two options: (1) find a faster way of making all rows invisible; and (2) place the total rows in a separate DataSet and bound DataGridView.
View 1 Replies
Aug 13, 2009
I would like to make a applcation that after checkbox inside datagridview is checked. After calcuation stuff, if result less than standard, then it set the checkbox to not checked state. But I find that checkbox in datagridview does not change. It changed after I click other checkbox. What I want is lagging one cycle. I tried dgv.refresh() or update event , no effect.
View 2 Replies
Dec 13, 2011
Brief : I have code which works if I don't dispose of the BindingSource after it has been assigned to DataGridView.DataSource but breaks if I do dispose it - why? Do I need to worry about disposing this?
[Code]...
So, what is going on here? When I set DataGridView1.DataSource = Bds does it just do this as a reference? How does Bds get disposed once the procedure exits? Does garbage collection pick it up if I assign something else to DataGridView1.DataSource? Do I need to worry about this?
View 2 Replies
Jun 19, 2012
I'm having some issues and it's all explained in some simplified code I have a structure
Public Structure myStruct
Public Property name As String
Public Property span As Double
Public Property offs As Double
End Structure
Which is instantiated in a Singleton object as follow
Public myValues(10) As myStruct
Then on a form, I'm using the structure as the DataSource for a SourceBinder and the binder as DataSource for a DataGridView.On loading the form, I get all the values into the binder
For i As Integer = 0 To 9
binder.Add(singleton.getRef.myValues(i))
Next i
All the values are shown on the grid.User is supposed to be able to change the values, which should reflect on myValues but no matter, what code I put on CellValueChanged or CurrentChanged. I can't make it reflect the changes. Using breakbpoints on those events, I noticed that grid.row().cell().values and binder.current never changes.I tried also placing a button and directly changing myValues and reseting the binder binder.ResetBindings(False) and nothing happens.As far as I saw all ReadOnly properties are set to false.I've also tried setting VirtualMode to true on the grid and catching CellValuePushed and CellValueNeeded events but those are never called.
View 1 Replies
Oct 28, 2008
I have a DataGridView that is bound to a datatable. I also have a combo box with sorting items in it. When the user selects a new item in the combo box, the DataBindingSource.filter is changed accordingly.
For the cell and row validation on the DataGridView, I set the row error text accordingly as opposed to displaying a message box.
Occasionally, when switching between items in the combo box, the datagridview gets filled with a bunch of empty rows that all have error messages. It seems it is validating the rows that existed from the previously selected filter against the new filter.
See attached image. I hope I am making myself clear.
View 1 Replies
Feb 19, 2010
Basically I try to get a DataGridView and a BindingSource working inside a class. I define them by:
Dim TempDGV3 As DataGridView = New DataGridView
Dim TestBinding As BindingSource = New BindingSource
When I manually add columns to the DataGridView, it works perfectly, but when I set it's DataSource to a bindingsource from a base class, it doesn't load data and keeps throwing 'object does not exist' errors. The bindingsource mentioned here did, however, work on other DataGridViews that are defined in the base class (and implemented in the form to which the base class belongs)
Same for the BindingSource(not the above mentioned, but the one I try to create inside the class in the beginning of this post). I try to use it in the following way:
TestBinding.DataSource = TempDGV3
TestBinding.Filter = filterString()
SourceDataGridView.DataSource = TestBinding
But the BindingSource keeps returning 'Nothing' for it's datasource and basically doesn't work. However, the SourceDataGridView mentioned here gets filled with 63 columns with "AllowUserToAddRows" and other properties when the columns names are asked.
So my question is: how do I get the BindingSource and the DataGridView to work in this class? I'm getting the feeling I'm missing out on something very obviously here. If that's not the case, I can report back with more code?
View 8 Replies
