DataGridView - How To Add Rows Already Populated

Oct 20, 2009

How do I add rows that have already been populated. I saw a param that took an array. I have 8 columns, so would I need 8 elements in my array when I add them I have the code:
me.datagridview1.rows.add()
But I want to modify the data in the row using code, how would I go about doing this?

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Determine Which Are New Rows And Which Are Populated Rows

Dec 15, 2009

I have a datagridview that is bound to a datatable (created by dataset designer) with columns RowID, CreatedBy, UpdatedBy and some other columns for actual data.Every time a user updates a row in datagridview, I will need automatically to populate UpdatedBy column with the user ID.Every time a user adds a new record in datagridview, I will automatically populate CreatedBy with user IDI use CellEndEdit event to check whether RowID is Null to determine the row is a new row. This means I have to set RowID AutoIncrement = False. Doing this way will only allow users to add 1 row at a time before they get duplicate row exception due to 2 same RowID.

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Scroll DGV Via Code When Rows Are Populated?

Jun 15, 2012

I have a datagridview which I populate in data real time. I want to be able to scroll the DGV via code so that the user can actually see the row that is being populated. This is obviosly not an issue if the # of total rows are visible in the DGV. However, if the # rows are greater than that which is visible to the user, a scroll needs to occur. The next question is how much do you scroll the DGV.

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VS 2010 - Datagridview - Rows Cannot Be Programmatically Added To DataGridView's Rows Collection When Control Is Data-bound

Sep 13, 2011

I have two datagridview's both are databound. First one shows items for sale and the second stores all the items that were sold. I am trying too transfer selected rows from one to the other but no matter what I keep getting told "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound."

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RE DataGridView Not Populated

Feb 18, 2010

[Code]...

I tried binding a DataGridView to a DataSet using the DataSource property but no data appeared in the DataGridView. I placed a DataGridView in an empty form, making no property changes except for the name. I did not create columns in the DataGridView. In the form's load event I placed the following code for loading a dataset named ds Executing in debug mode, I confirmed that there was data in that dataset. No column headings or data appeared in the DataGridView. What am I doing wrongly? There are 34 fields (columns) in the DataSet - maybe it exceeds the capacity of a DataGridView.

[Code]...

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Inform User That A DataGridView Is Being Populated?

Oct 19, 2009

I am writing a program in VB.Net to manage text messages sent through an API. It allows you to view messages in a datagridview and filter by date, sent/unsent etc...

To load the messages I'm executing an SQL statement and retrieving a DataTable which then gets set as the DataSource for my DataGridView control.

The problem is that depending on the filters selected the user could be selecting a lot of records and it would take some time for the DataSource to update. I want to inform the user of this load time by providing a progress bar or label of some kind.

I have used progress bars before when looping through data but this is loading it all at once. I thought of displaying a label when the user clicks to load the data and then hiding it when the data is loaded. But this happens instantaneously even when the data is still loading.

Is there an event on the DataGridView I can use perhaps?

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Delete Selected Row In Datagridview Populated By Datasource?

Jun 11, 2010

How do i delete a row from datagridview and datasource that is populated by a class file?dding of item goes like this, but not not sure how to delete the item.

Dim dt As DvdEzyDataSet.DVDCopyDataTable = DvdCopyDB.getDvdCopyByID(CInt(txtCopyID.Text))
Dim dr As DvdEzyDataSet.DVDCopyRow = dt.Rows(0)
Dim dt1 As DvdEzyDataSet.DVDDataTable = DvdDB.getDvdByID(CInt(dr.FK_dvdID))

[code].....

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Deleting From A Cascaded DataGridView Populated Via Linq To SQL?

Nov 18, 2009

I am having problems deleting any rows from a cascaded DGV. I get a run time error complaining that I am breaking a constraint almost as if LINQ is try to delete from the parent table. I have 2 DGVs on a form one displaying Species and the other all SubSpecies for the currently selected species and that works fine.

However when I try to delete a SubSpecies I get the following exception:- An attempt was made to remove a relationship between a Species and a SubSpecies. However, one of the relationship's foreign keys (SubSpecies.SpeciesID) cannot be set to null. At first I thought the error was raised by SQL server due to the Cascading Delete limitations on L2S but the error message for that is very different the DataContext.Log doesn't show any attempt to change the data.

The code used to bind the DGV's is as follows:-

Protected Sub BindControls()
Try
DC = New DataClassesWhatToPlantDataContext

[code]....

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VS 2008 Multiple Datagridview Populated From Same Datatable?

Jan 28, 2011

VB2008 & mysql
Is it possible?
If so how?

Wanting to have multiple datagridviews showing unique information (via filters?) based on cell content all coming from one data table.

Example:
3 datagridviews accessing the same datatable that has a [Job Status] column limited to one of the following 3 entries NEW, JOBS IN PROGRESS or COMPLETED and having that column hidden from view on all gridviews

Top grid showing only NEW jobs

Middle grid showing only JOBS IN PROGRESS

Bottom grid showing only COMPLETED jobs

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VS 2008 (DataGridView) :: Delete Successful Inserts Of Rows And Move Rows Up?

Jul 30, 2010

How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. You can better see what logic i am trying to perform at the bottom of my code, right after I insert into the database. Here is my code.

Private Sub btnLaserGenerateTicket_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLaserGenerateTicket.Click
'Function declarations

[code]....

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.net (DataGridView) - Delete Successful Inserts Of Rows And Move Rows Up?

Jul 30, 2010

How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! :) AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. Here is my code.

[Code]...

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VS 2005 : Add Icon To The Left Side Of The Item Populated On A Datagridview?

Apr 3, 2009

how can add icon to the left side of the item populated on a datagridview (just like in a listview)?

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Error - Rows Cannot Be Programmatically Added To The DataGridView's Rows

Feb 7, 2012

'Invoice Form
Dim daInvoice As New OleDbDataAdapter()
Dim dsInvoice As New DataSet()
Dim MyDataTable As DataTable

[code]...

Error...

Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound.

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Rows Cannot Be Programmatically Added To The DataGridView's Rows Collection

Sep 2, 2010

how to add Rows programmatically to the DataGridView's rows collection when the control is data-bound? here is my code but i got error as "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound? "

[Code]...

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VS 2008 DataGridView Populated By LINQ Query - Unable To User Edit

Dec 12, 2010

I'm using a DataGridView to post the results of LINQ-from-SQL query. I was hoping that the data would be editable in the DataGridView, but it isn't. I made sure that DataGridView.readonly = false. I'm using VB.

VB 2008
DB = New CXToolDataContext()
Dim Systems = (From TBLSYSTEMS In DB.tblSystems, TBLSYSTYPES In DB.tblSystemTypes _
Where TBLSYSTEMS.ProjectName = projectnumber And TBLSYSTEMS.SystemType =

[Code]...

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VS 2010 - "Rows Cannot Be Programmatically Added To The DataGridView's Rows Collection When The Control Is Data-bound"

Sep 1, 2011

Can anyone tell me why "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound." I keep getting an error "Invalid Operation Exception was Unhandled" error. All I am attempting to do is allow the user to select products from a list(or a second datagridview) and have it added to the datagridview so they do not have to type in every cell since the other cells are not visible because they do not purtain to their needs. Plus they will be able to save all items at the same time.

[Code]...

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Save Datagridview Rows As New Rows?

Apr 26, 2012

It was even difficult coming up with a Question title for this.

Am not sure whether am using the right approach to my problem. See i have this datagridview that contains rows that i would like have saved back into the Database as new rows but with a column altered to a new value.

Eg

PKColumn1 FKColumn2
Column3 Column4
1 1

[Code].....

What am looking at is Change FKColumn2 (some foreign key, maybe i can also have a combo box somewhere on the form and an "import to") values to something like 2 and save the rows back to the database without loosing the original rows.

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DataGridView - Nonvisible Rows Are Still Visible And The DataGridView Is Empty Despite Having A DataSource

Jul 30, 2009

I have several problems with rows in a DataGridView. Background information: The DataGridView (DataGridViewCalib) is in one TabPage of a TabControl, some columns of the DataGridView are automatically DataGridViewCheckBoxColumn as the DataSource have some colums which are Boolean. This is a Windows Form written in VB.Net with Visual Studio 2008. The user loads an input data file.

The problems:

1) At first arrival in the TabPage, ShowDataGridViewCalib (code below) is called. All rows are then shown in the DataGridView, despite the code saying that some rows should not be visible. Breakpoints in the code show that the code do arrive at the Rows.Visible = False events. Despite all rows beeing shown a Watch in the debugger shows that:

[code]...

There are two alternative ways of handling the rows in the code. The first attempt (commented away here) is probably the "nicest".

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DataGridView On A Form That Is Being Populated From A SQL Table Dataset By Giving Criteria From A Previous Form?

Apr 8, 2009

I have a DataGridView on a form that is being populated from a SQL table dataset by giving criteria from a previous form. I have 6 columns in the dataset, of which the last column should be combo box column containing items "Done" and "Pending". How do I make this bound column to a combo box column and display the value as well as the alternate item too in the combo box?

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Multiple Rows Selection From One Datagridview To Transfer To Another Datagridview?

Jul 10, 2010

In VB.NET 2008 I've two forms 1 & 2 containing two datagridviews connected to two data source 'ACCESS 2007 tables' Now I want to select multiple rows from one datagridview (form1) & transferring these to another empty datagridview (form2) with a button_click.

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Transfer All The DataGridView Rows From From2 To Another DataGridView Of Form1?

Mar 13, 2011

I have 2 forms, each one with a datagridview.I want to transfer all the DataGridView Rows from From2 to another DataGridView of Form1. but it's not possible.

[Code]...

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Add N Rows To DatagridView?

Dec 23, 2011

I have a datagridview that has two columns with combobox's in them.

On a previous windows form a number is entered and passed to the function which populates the datagridview.

How do I add rows based on that number? So if 2 is entered two rows are added.

In the combobox's players name are added from a textfile.

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How To Add Rows In Datagridview

Jun 12, 2009

when i press enter key then column value is incremented and i want that when i reach to column index 4 then a new row is created in datagridview and again this keydown event is executed and agin when i am in second row in gridview again a next row is created when column index is 4 so how to that .

through this code only i can move to next col when i press enter and i have made DataGridView1.AllowUserToAddRows = false

Private Sub DataGridView1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles DataGridView1.KeyDown
If e.KeyCode = Keys.Enter Then

[Code].....

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Apply To Datagridview 400 Rows?

Mar 14, 2011

how to apply to Datagridview 400 rows?

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Cannot Remove Rows In Datagridview

Aug 11, 2011

My datagridview is bound to a data table. I want to filter the datagridview without affecting data table. I know one way is to use bindingsource, but binding source will use column names in its filter. But I want to enable users to enter any string in a textbox to filter. So I pass datagridview by reference to a function PassFilter which removes unwanted rows in datagridview. I can see that it does execute rows removal in datagridview. But the problem is that when datagridview is shown on the form, it is unchanged, the same as the data table. I do not understand why rows are not removed on datagridview The code is as follows:

[Code]...

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Cannot Remove Rows In Datagridview In .net

Aug 11, 2011

My datagridview is bound to a data table. I want to filter the datagridview without affecting data table. I know one way is to use bindingsource, but binding source will use column names in its filter. But I want to enable users to enter any string in a textbox to filter. So I pass datagridview by reference to a function PassFilter which removes unwanted rows in datagridview. I can see that it does execute rows removal in datagridview. But the problem is that when datagridview is shown on the form, it is unchanged, the same as the data table. I do not understand why rows are not removed on datagridview

The code is as follows:

DataGridView1.DataSource = table
PassFilter(DataGridView1, m_FilterQuick.strFilter.ToLower())
Private Sub PassFilter(ByRef datagridview As DataGridView, ByVal strFilter As String)

[code]....

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Clear All The Rows Of A Datagridview?

May 27, 2011

I keep finding ways to clear all the rows of a datagridview... but i want to keep my rows..is there an easier way than looping through every cell to clear all the values out of the cells of the datagridview??

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Comparing DataGridView Rows?

Dec 2, 2009

I'm building a tool to display xml within a DataGridView and then to compare the rows of data.

I have read the xml correctly and displayed it within the DGV and have sorted the DGV by 3 of the columns.

I'm stuck with comparing the rows as i need to check several things:

[Code]...

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Copying Rows From DataGridView

Oct 11, 2009

When copying rows from DataGridView i getting empty DataGridView in other DataGridView.This is wrong in this peace of code.[code]

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Count Datagridview Rows?

Mar 14, 2012

I have hide some data in datagridview. When i write datagridview1.rowcount-1, it will count all data no matter is visible or invisible. But i only want to count data that display in datagridview. How to do??

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