[RESOLVED] Change Cell Color + GridView

I want to change the value & its backcolor of cell.
On Button1_Click,I m adding records to the Gridview.
On Button3_Click,I want to chnage the value of cell & its backcolor.

Suppose two Rows & two columns are there in Grdiview
1 10
2 20

Suppose I want to change the value of item(Row=2,Colomn=2) to 100. I change the value but i m not ablt to change the backcolor.Can somebody tell me?

Code:

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Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Try

            Dim row0 As String() = {TextBox1.Text, TextBox2.Text}
            DataGridView1.Rows.Add(row0)
            row0 = Nothing

        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    End Sub


 Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Try

            DataGridView1.Item(1, 1).Value = 100
          'What to write to chnage the cell color

        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    End Sub

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Code:

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dataGridView1.Rows[0].Cells[0].Style.BackColor = Color.Red;

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Thanks very much

Tell me one thing more that is it possible to change all colors of row of Griview widout using any for loop( For RowNum = 0 To DataGridView1.RowCount - 2)

Are you looking for this one ?

Code:

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dataGridView1.Rows[0].DefaultCellStyle.BackColor = Color.Red;

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Suppose there are 10 rows in Gridview,Is it poss to chnage all the 10 rows backcolor at once,Without uisng any Gridview Row loop

Here it is

Code:

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dataGridView1.DefaultCellStyle.BackColor = Color.Red;

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Thx thx very much