How to add row to DataGridView? : VB.net, Vs 2005

May 17, 2008 12:12pm pdt

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02.15.2008 at 02:25PM PST, ID: 23167505

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8.2

How to add row to DataGridView?

Zones: Microsoft Visual Basic.Net, .Net Editors & IDEs, Visual Studio .NET 2005

Tags: VB.net, Vs 2005

Hello,
I have two DataGridViews both are filled based on BindingSources which are using stored procedure with different parameter values.

Now I need to move rows from one DataGridView to other one. I know how to remove row from dataGridView but dont know how to add it to another
If I try to do this as I show in attached code I'm getting error:
Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound

I don't want to change things in database until I confirm all the changes.
How can I do things like this?

         
             Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        ' Iterate through a collection
        For Each row As DataGridViewRow In DataGridView1.SelectedRows
            moved.Add(row.Cells("IdOsoba"))
            DataGridView1.Rows.Remove(row)
            DataGridView2.Rows.Add(row)
        Next
    End Sub

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Question Stats

Zone: Programming

Question Asked By: f_o_o_k_y

Solution Provided By: VBRocks

Participating Experts: 2

Solution Grade: B

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02.15.2008 at 02:56PM PST, ID: 20906805

Rank: Sage

jpaulino:

Hi f_o_o_k_y,

You cannot add that way. You can add to the datatable from the datasource of the datagridview. Here's an example how to get the datatable and add records to is and the bind again. http://www.experts-exchange.com/Microsoft/Development/.NET/Visual_Studio_.NET_2005/Q_23158246.html

I didn't test it but maybe you have to loop throu the selected item and add to the other datagridview and then delete it.

Hope this helps

02.15.2008 at 03:32PM PST, ID: 20907006

Rank: Sage

VBRocks:

Hi jpaulino! You have to email me some time!

Here's a way you can accomplish this, IF both tables are exactly the same:

'Get the table that is the datasource for DataGridView2
Dim grid2Table As DataTable = Me.DataGridView2.DataSource

Dim rowView As DataRowView = Nothing

' Iterate through a collection
For Each row As DataGridViewRow In DataGridView1.SelectedRows
rowView = row.DataBoundItem

'If both tables are not exactly the same, then you will have to create a new row and
' populate each one manually.
grid2Table.Rows.Add(rowView.Row.ItemArray)

row.Tag = "added"

Next

'Loop through each row in DataGridView1, and remove the rows added above
For Each row As DataGridViewRow In Me.DataGridView1.Rows
If row.Tag = "added" Then
Me.DataGridView1.Rows.Remove(row)
End If
Next

VBRocks
MS MVP

Accepted Solution

02.15.2008 at 03:37PM PST, ID: 20907028

Rank: Sage

jpaulino:

>> You have to email me some time!

H Gary,

If I have your email :-)

02.15.2008 at 03:38PM PST, ID: 20907033

Rank: Sage

VBRocks:

Oops! My apology! I got caught removing items while iterating through a collection... which doesn't
work very well. Replace the iteration at the bottom of my example above:

'Delete:
'Loop through each row in DataGridView1, and remove the rows added above
For Each row As DataGridViewRow In Me.DataGridView1.Rows
If row.Tag = "added" Then
Me.DataGridView1.Rows.Remove(row)
End If
Next

'Insert:
Dim gridRow As DataGridViewRow
For i As Int16 = Me.DataGridView1.Rows.Count - 1 To 0 Step -1
gridRow = Me.DataGridView1.Rows(i)

If gridRow.Tag = "added" Then
Me.DataGridView1.Rows.Remove(gridRow)
End If
Next

VBRocks

02.15.2008 at 03:41PM PST, ID: 20907053

Rank: Sage

jpaulino:

2008 Microsoft MVP

Congratulations Gary !!!

02.15.2008 at 03:42PM PST, ID: 20907061

Rank: Sage

VBRocks:

jpaulino: I temporarily put my email addess in my profile so you can get it, just under "Member Profile:"

profile:
http://www.experts-exchange.com/M_3743739.html

02.15.2008 at 03:43PM PST, ID: 20907066

Rank: Sage

VBRocks:

Thanks jpaulino. It's exciting, and an honor!

02.15.2008 at 03:48PM PST, ID: 20907097

Rank: Sage

jpaulino:

>> jpaulino: I temporarily put my email addess in my profile so you can get it, just under "Member Profile:"
You can remove it again and read your email.

f_o_o_k_y,
Sorry for the out of question comments!

02.16.2008 at 02:31AM PST, ID: 20909095

f_o_o_k_y:

Hello
Thanks for response but I can't use
Dim grid2Table As DataTable = Me.DataGridView2.DataSource
because Me.DataGridView2.DataSource is BindingSource and I don't kow how to modify your code to work with BindingSource.

But I've managed to achive my goal with code attached below:

Maybe there is some other (better way to do this? )

Best Regards
FooKy

                       
                                 Private Sub ComboBox2_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox2.SelectedIndexChanged
       
        DataGridView2.Rows.Clear()
 
        For Each row As DataRow In Ds_SzkolaSrednia_Osoby_sel1TableAdapter.GetData(ComboBox2.SelectedValue).Rows
            DataGridView2.Rows.Add(row.ItemArray)
        Next 
End Sub
 
' Iterate through a collection and move rows
        For Each row As DataGridViewRow In DataGridView1.SelectedRows
            moved.Add(row.Cells("IdOsoba").Value)
            Dim a As DataGridViewRow = New DataGridViewRow()
            a.CreateCells(DataGridView2)
            a.Cells(0).Value = row.Cells(0).Value
            a.Cells(1).Value = row.Cells(1).Value
            a.Cells(2).Value = row.Cells(2).Value
            DataGridView2.Rows.Add(a)
            DataGridView1.Rows.Remove(row)
            changed = True
        Next

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