Question

我已经将数据从数据库加载到datagridview并且具有两列目标值和体积，其中项目单位＆gt;项目最小值，该体积单元格应该是绿色并且项目min＆lt;项目单位然后音量应为红色。我尝试了但是我无法做到。

导入System.Data.SqlClient

Public Class view_all

Dim con1 As SqlConnection

Dim con As String  

Dim da As SqlDataAdapter

Dim ds As DataSet

Private Sub view_all_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    Dim obj As New config

    con1 = New SqlConnection

    con1 = obj.getcontion()

    con1.Open()



    da = New SqlDataAdapter("select * from item", con1)

    ds = New DataSet

    da.Fill(ds, "item")

    DataGridView1.DataSource = ds

    DataGridView1.DataMember = "item"



    DataGridView1.Columns(0).HeaderText = "Item Id"
    DataGridView1.Columns(1).HeaderText = "Item Name"
    DataGridView1.Columns(2).HeaderText = "Item Number"
    DataGridView1.Columns(3).HeaderText = "Item Propose"
    DataGridView1.Columns(4).HeaderText = "Item Unit "
    DataGridView1.Columns(5).HeaderText = "Item Max"
    DataGridView1.Columns(6).HeaderText = "Item min"

End Sub

Answer 1

所以你需要做的是获取列索引，然后遍历所有行，这意味着遍历指定列中的所有单元格。

 Dim intR As Integer = Maintt.DataGridView1.RowCount - 1
 Dim jr as integer ' for the rows
  For jR = 1 To intR
 'Put condition here
    Maintt.DataGridView1.Item(4, jR).Style.BackColor = Color.LightGreen
  Next

这将适用于您的第4列现在，您已将此列中的所有单元格置于绿色条件下。再次浏览此列，找到背景为绿色的单元格，获取行索引并将此行中的所有单元格设置为绿色。

在条件vb.net上更改datagridview行颜色

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