Row count in datagridview is not updating

Question

4.00/5 (1 vote)

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I have added a gridview in which items are added and a function is called to calculate the amount

after adding a item to list i call

VB

Private Sub totalimsum()
    Dim totalsum As Double = 0
    Dim totalitem As Double = 0

    For i As Integer = 0 To dgvitemlist.Rows.Count - 1
        totalsum += dgvitemlist.Rows(i).Cells("Total").Value
        'totalitem += dgvitemlist.Rows(i).Cells("qty").Value
    Next
    Label16.Text = dgvitemlist.Rows.Count.ToString()
    amttotal = totalsum.ToString()
    txttotal.Text = amttotal
    calctotal()
End Sub

it works perfect but when a row got deleted, I again call the function to recalculate the amount but it miscalculate the amount and I found that rowcount is 1 more than row present in the datagridview so i added a new function and calling it but i think it is not a solution

VB

   Private Sub totalimsumd()
    Dim totalsum As Double = 0
    Dim totalitem As Double = 0

    For i As Integer = 0 To dgvitemlist.Rows.Count - 2
        totalsum += dgvitemlist.Rows(i).Cells("Total").Value
        'totalitem += dgvitemlist.Rows(i).Cells("qty").Value
    Next
    Label16.Text = dgvitemlist.Rows.Count.ToString()
    amttotal = totalsum.ToString()
    txttotal.Text = amttotal
    calctotal()
End Sub

Kindly help to get the solution.

Posted 4-May-15 21:40pm

yash00121

Updated 4-May-15 22:29pm

Vipin_Arora

v2

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Comments

Ralf Meier 5-May-15 3:51am

Do you delete the row completly or do you only delete the Content of the row ?
That makes a difference ...

yash00121 5-May-15 3:59am

deleting the row by delete button . i think it is deleting the complete row .

Ralf Meier 5-May-15 4:47am

Are you doing it like this :

Dim myRow As Integer = DataGrid_Zeiten.CurrentCell.RowIndex
DataGrid_Zeiten.Rows.RemoveAt(myRow)

2 solutions

Solution 1

can you please give me the row delete function ? i think you didn't completely delete the row.
if it is completely delete the count should decrease too.

Posted 4-May-15 22:51pm

Real_Criffer

Comments

yash00121 5-May-15 5:03am

i am deleting the row by delete button without any function

yash00121 5-May-15 5:04am

but now i understood it is just hiding the item not deleting

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Real_Criffer · Accepted Answer · 2015-05-04T23:11:00

use the row or cell click event to help store seletedrows
and use selectedrows to be the index to delete the entire row of the data in datagridview like this

C#

private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
    DataGridView dgv = sender as DataGridView;
    if (dgv == null)
        return;
    if (dgv.CurrentRow.Selected)
    {
        int selectedrows = 0;
        selectedrows = dgv.CurrentRow.Index;
        dgv.removeat(selectedrows); 
        //do rest you staff.
    }
}

it should work : )