VB.NET - How To Change A DataGridView Row Color In VB

VB - How To Change A DataGridView Row Back Color In VB.NET

In This VB.NET Tutorial We Will See How To  Cahange A DataGridView Row BackGround Color Based On A Column Value In VB.NET Programming Language .

Project Source Code:

Public Class VB_Datagridview_Rows_Color
    ' Create a new datatable
    Dim table As New DataTable("Table")
    Private Sub VB_Datagridview_Rows_Color_Load(sender As Object, e As EventArgs) Handles MyBase.Load

        ' Add columns to your datatable, 
        ' with the name of the columns and their type 

        table.Columns.Add("Id", Type.GetType("System.Int32"))
        table.Columns.Add("First Name", Type.GetType("System.String"))
        table.Columns.Add("Last Name", Type.GetType("System.String"))
        table.Columns.Add("Age", Type.GetType("System.Int32"))

        ' Add rows to the datatable with some data
        table.Rows.Add(1, "XXXX", "YYYYY", 21)
        table.Rows.Add(2, "SSDD", "hGSQ", 5)
        table.Rows.Add(4, "cvfghyghj", "sdrgtyh", 19)
        table.Rows.Add(5, "hghfd", "ghjgdf", 36)
        table.Rows.Add(6, "cvvdfgh", "juyrfdvc", 3)
        table.Rows.Add(1, "XXXX", "YYYYY", 0)
        table.Rows.Add(2, "SSDD", "hGSQ", 12)
        table.Rows.Add(3, "fgfgd", "jgfdd", 0)
        table.Rows.Add(4, "cvfghyghj", "sdrgtyh", 9)
        table.Rows.Add(5, "hghfd", "ghjgdf", 1)
        table.Rows.Add(6, "cvvdfgh", "juyrfdvc", 32)
        table.Rows.Add(1, "XXXX", "YYYYY", 7)
        table.Rows.Add(2, "SSDD", "hGSQ", 1)
        table.Rows.Add(3, "fgfgd", "jgfdd", 14)
        table.Rows.Add(4, "cvfghyghj", "sdrgtyh", 0)
        table.Rows.Add(5, "hghfd", "ghjgdf", 33)
        table.Rows.Add(6, "cvvdfgh", "juyrfdvc", 21)
        table.Rows.Add(1, "XXXX", "YYYYY", 2)
        table.Rows.Add(2, "SSDD", "hGSQ", 18)
        table.Rows.Add(3, "fgfgd", "jgfdd", 45)
        table.Rows.Add(4, "cvfghyghj", "sdrgtyh", 4)
      

        ' now set the datagridview datasource equals to your datatable name
        DataGridView1.DataSource = table


        RowsColor()
    End Sub

    Public Sub RowsColor()

        For i As Integer = 0 To DataGridView1.Rows.Count() - 1 Step +1
            Dim val As Integer
            val = DataGridView1.Rows(i).Cells(3).Value
            If val < 5 Then
                DataGridView1.Rows(i).DefaultCellStyle.BackColor = Color.Red
                If val = 0 Then
                    Timer1.Start()
                End If
            ElseIf val >= 5 And val < 10 Then
                DataGridView1.Rows(i).DefaultCellStyle.BackColor = Color.Orange
            ElseIf val >= 10 And val < 15 Then
                DataGridView1.Rows(i).DefaultCellStyle.BackColor = Color.Yellow
            Else
                DataGridView1.Rows(i).DefaultCellStyle.BackColor = Color.LightGreen
            End If
        Next
    End Sub

    ' if val = 0
    Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
        For i As Integer = 0 To DataGridView1.Rows.Count() - 1 Step +1
            Dim val As Integer
            val = DataGridView1.Rows(i).Cells(3).Value
            If val = 0 Then
                If DataGridView1.Rows(i).DefaultCellStyle.BackColor = Color.Red Then
                    DataGridView1.Rows(i).DefaultCellStyle.BackColor = Color.White
                ElseIf DataGridView1.Rows(i).DefaultCellStyle.BackColor = Color.White Then
                    DataGridView1.Rows(i).DefaultCellStyle.BackColor = Color.Red
                End If
            End If
        Next
    End Sub
End Class
///////////////OUTPUT:

vb change datagridview row back color

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