原谅vb.net是新手。我有一个组合框和列表视图。我需要的是当我在组合框中更改类别并按下“确定”时,之前添加的旧列表将被新列表替换。
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim i As ListViewItem
If ComboBox1.Text = "Terrestrial Ecotoxicity (Freshwater)" Then
i = ListView1.Items.Add("Water")
i.SubItems.Add("2068.030567")
i.SubItems.Add("0")
i.SubItems.Add("0")
ElseIf ComboBox1.Text = "Terrestrial Ecotoxicity (Seawater)" Then
i = ListView1.Items.Add("Dimethylamine")
i.SubItems.Add("1229.539887")
i.SubItems.Add("0.000122731")
i.SubItems.Add("0.15090266")
End if
End Sub
我需要添加什么?
答案 0 :(得分:0)
您正在做的是在每个案例中添加不同的行。您要求的是根据您在组合框中选择的项目,在列表视图中填入不同的项目。
基本上,您需要清除每个案例的列表视图。我做这样的事情:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim i As ListViewItem
ListView1.Items.Clear
If ComboBox1.Text = "Terrestrial Ecotoxicity (Freshwater)" Then
i = ListView1.Items.Add("Water")
i.SubItems.Add("2068.030567")
i.SubItems.Add("0")
i.SubItems.Add("0")
ElseIf ComboBox1.Text = "Terrestrial Ecotoxicity (Seawater)" Then
i = ListView1.Items.Add("Dimethylamine")
i.SubItems.Add("1229.539887")
i.SubItems.Add("0.000122731")
i.SubItems.Add("0.15090266")
End if
End Sub