VB 2008 - problem updating datagridview

[Lullly]

Hello everyone,


I'm stuck on a stupid problem

I have a datagridview where i add rows using array like this:
Dim srow() As String = {getIDprodus(cmbprodus.Text), cmbprodus.Text, getprodusforma(cmbprodus.Text), txtcantitate.Text}
griddetalii.Rows.Add(srow)


Next, i need to let user to modify the added row. So when user selects a row and press EDIT, a new form is popped out using this code:
Dim i = griddetalii.CurrentRow.Index
frmdetaliiiesire.cmbprodus.Text = griddetalii.Item(0, i).Value
frmdetaliiiesire.txtcantitate.Text = griddetalii.Item(1, i).Value
frmdetaliiiesire.StartPosition = FormStartPosition.CenterScreen
frmdetaliiiesire.ShowDialog()

In that form, the user can change the 2 values and after that, he clicks ok with this code:
frmiesiri.griddetalii.Rows(CInt(TextBox1.Text)).Cells(0).Value = cmbprodus.Text
frmiesiri.griddetalii.Rows(CInt(TextBox1.Text)).Cells(1).Value = txtcantitate.Text

In textbox1 i have put the index of the current row selected in grid


The problem is when i push OK, the applications crashes and i receive an error: INDEX WAS OUT OF RANGE

If the users changes the values from the same form, it's works. But changing them from another form crashes the applications

Can someone help me?

[.paul.]

put a msgbox in there + check that cint(textbox1.text) is what you expect it to be

[Lullly]

i did....
it says that index = 0 and that's corect, it's the first row from the grid. but i still receive the "INDEX OUT OF RANGE" error

[Lullly]

i have made some things ...

underneath the datagridview, i put a textbox and next code:

Private Sub griddetalii_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles griddetalii.CellContentClick
                TextBox1.Text = e.RowIndex
    End Sub

but when i click the first row, the value in the textbox is 3 :|
why ?

[.paul.]

i don't know why that'd happen.
maybe if you post more of your code or zip your project + post it, i might find it

[Lullly]

here you go...maybe you can explain why....


i have created a new simple project, and i get no error when i try to update the datagridview from another form... it works perfectly with the same code....


ty man

[.paul.]

i'll have a look at it later this evening (it's 8.15pm here now). just a guess though, is frmiesiri a child form, + do you have more than 1 instance of frmiesiri open at 1 time?

[.paul.]

it might be that you load frmiesiri as form3 in your mdiparent form, so that is what you should refer to it as:

form3.griddetalii.Rows(CInt(TextBox1.Text)).Cells(0).Value = cmbprodus.Text
form3.griddetalii.Rows(CInt(TextBox1.Text)).Cells(1).Value = txtcantitate.Text

[Lullly]

i'm an idiot

[.paul.]

it worked then?

[Lullly]

no, it didnt

when i write form3, it says that: form3 is not defined.




LE: only one instance of frmiesiri is open at a time

[.paul.]

ok try this (in frmdetaliiiesire):

Private Sub btnok_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnok.Click
    Me.Owner.griddetalii.Item(1, CInt(lblid.Text)).Value = cmbprodus.Text
        Me.Owner.griddetalii.Item(3, CInt(lblid.Text)).Value = txtpretunitate.Text
        Me.Owner.griddetalii.Item(4, CInt(lblid.Text)).Value = txtcantitate.Text
        Me.Owner.griddetalii.Item(5, CInt(lblid.Text)).Value = txttva.Text
    Me.Close()
End Sub

[Lullly]

it says: griddetalii is not a member of System.Forms.form

[.paul.]

Private Sub btnok_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnok.Click
    directcast(Me.Owner, frmiesiri).griddetalii.Item(1, CInt(lblid.Text)).Value = cmbprodus.Text
    directcast(Me.Owner, frmiesiri).griddetalii.Item(3, CInt(lblid.Text)).Value = txtpretunitate.Text
    directcast(Me.Owner, frmiesiri).griddetalii.Item(4, CInt(lblid.Text)).Value = txtcantitate.Text
    directcast(Me.Owner, frmiesiri).griddetalii.Item(5, CInt(lblid.Text)).Value = txttva.Text
    Me.Close()
End Sub

[Lullly]

Object reference not set to an instance of an object.


i think i will soon hang myself



LE: i realize now, the problem is because i use MDiform

the test application i have used so far, i have added a mdiform, and i still get the index out of range error. damn mdiform

[.paul.]

still alive i hope?

try this now:

[Lullly]

OMG OMG OMG OMG OMG OMG OMG OMG

it works........

unfortunatelly, it's verry late for me and i have to go to bed to sleep few hours before i go to work.

man, i must admit, you're a genius. How can i rate you?

thanks alot, i hope somedays i will manage to help you too

thanks again

[.paul.]

LE: i realize now, the problem is because i use MDiform

the test application i have used so far, i have added a mdiform, and i still get the index out of range error. damn mdiform

it is because of the mdiform + the child form, but it's not a problem

[Lullly]

thanks again man, many thanks

i will try tomorow and understand your modifications


thanks man I SIMPLY LOVE YOU