Wpf 如何在代码中从listview检索列项
我是wpf的新手,准备参加MCTS考试。我已经搜索了两天了,关于如何在代码中检索行-列项目。通过创建一个结构并通过代码添加行项目,我已经能够将数据插入到listview中Wpf 如何在代码中从listview检索列项,wpf,vb.net,listview,datagrid,Wpf,Vb.net,Listview,Datagrid,我是wpf的新手,准备参加MCTS考试。我已经搜索了两天了,关于如何在代码中检索行-列项目。通过创建一个结构并通过代码添加行项目,我已经能够将数据插入到listview中 Public Structure SimpleData Public Property Txt1 As String Get Return mTxt1 End Get Set(value As String) mTxt1 =
Public Structure SimpleData
Public Property Txt1 As String
Get
Return mTxt1
End Get
Set(value As String)
mTxt1 = value
End Set
End Property
Private mTxt1 As String
Public Property Txt2 As String
Get
Return mTxt2
End Get
Set(value As String)
mTxt2 = value
End Set
End Property
Private mTxt2 As String
Public Property Txt3 As String
Get
Return mTxt3
End Get
Set(value As String)
mTxt3 = value
End Set
End Property
Private mTxt3 As String
End Structure
Public Structure MyData
Public Property Desc() As String
Get
Return m_Desc
End Get
Set(value As String)
m_Desc = Value
End Set
End Property
Private m_Desc As String
Public Property Progress() As Integer
Get
Return m_Progress
End Get
Set(value As Integer)
m_Progress = Value
End Set
End Property
Private m_Progress As Integer
Public Property ProgressText() As String
Get
Return m_ProgressText
End Get
Set(value As String)
m_ProgressText = Value
End Set
End Property
Private m_ProgressText As String
Public Property Pic() As String
Get
Return m_Pic
End Get
Set(value As String)
m_Pic = Value
End Set
End Property
Private m_Pic As String
End Structure
Private Sub Button2_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles Button2.Click
Dim sd As New SimpleData
sd.Txt1 = "Today is"
sd.Txt2 = "a good day"
sd.Txt3 = "O YES!"
listView1.Items.Add(sd)
End Sub
我希望能够检索行(0).Item(0).ToString,这是如何在win表单中检索它的。期待回应。提前感谢我找到了答案,将listview项强制转换到创建的结构SimpleData,然后在其中循环
Dim constr As String = "Put your connection string here"
Dim ds As New DataSet
Dim con As New SqlClient.SqlConnection(constr)
con.Open()
Dim sqladap As New SqlClient.SqlDataAdapter("select * from tbl_Employee", con)
sqladap.Fill(ds)
For i As Integer = 0 To ds.Tables(0).Columns.Count - 1
ListView1.Columns.Add(ds.Tables(0).Columns(i).ToString())
Next
For i As Integer = 0 To ds.Tables(0).Rows.Count - 1
Dim listRow As New ListViewItem
listRow.Text = ds.Tables(0).Rows(i)(0).ToString()
For j As Integer = 1 To ds.Tables(0).Columns.Count - 1
listRow.SubItems.Add(ds.Tables(0).Rows(i)(j).ToString())
Next
ListView1.Items.Add(listRow)
Next
Read data from Listview :
Dim name, room, subject, date, period As String
If listviewName.SelectedItems.Count > 0 then
For i As Integer = 0 To listviewName.SelectedItems.Count - 1
'*********** transfer selected data on declare String variable ************'
name= listviewName.SelectedItems(i).SubItems(0).Text
room = listviewName.SelectedItems(i).SubItems(1).Text
subject = listviewName.SelectedItems(i).SubItems(2).Text
date= listviewName.SelectedItems(i).SubItems(3).Text
period= listviewName.SelectedItems(i).SubItems(4).Text
'*********** delete **************'
cmd1.Connection = MYSQLCON
MYSQLCON.Open()
cmd1.CommandText = "DELETE FROM tablename WHERE columnname = '" & name & "'"
reader = cmd1.ExecuteReader
MYSQLCON.Close()
Next
End If
Dim getitems = CType(listView1.SelectedItem, SimpleData)
For Each mem In getitems.Txt1
MsgBox(mem.ToString)
Next
我通过文本框中的文本输入listview,现在我想将这些项添加到我的数据库中。我尝试这样做:Dim lv as new listitemview lv=listview1.items msgbox lv.items(0)子项(1)ToString,但intellisense拒绝了它。我可以通过将listview.selecteditems强制转换到结构SimpleDate并使用循环选择它来找到这些项。Dim getitems=CType(listView1.SelectedItem,SimpleData),用于getitems.Txt1 MsgBox(mem.ToString)下一步中的每个mem