asp.net实例代码之编辑datagrid数据
本文导语: asp.net编辑datagrid控件中数据的代码。 如下： 代码示例: Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs) If Not IsPostBack Then BuildDataList End If End Sub Sub Edit_Grid(sender As Object, e As DataGridCommandEventArgs) ...
asp.net编辑datagrid控件中数据的代码。
如下：
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
If Not IsPostBack Then
BuildDataList
End If
End Sub
Sub Edit_Grid(sender As Object, e As DataGridCommandEventArgs)
dgEmps.EditItemIndex = e.Item.ItemIndex
BuildDataList
End Sub
Sub Update_Grid(ByVal Sender as Object, ByVal E as DataGridCommandEventArgs)
Dim TheID as String
Dim LastName as String
Dim FirstName as String
TheID = E.Item.Cells(2).Text
LastName = CType(e.Item.Cells(0).Controls(0), TextBox).Text
FirstName = CType(e.Item.Cells(1).Controls(0), TextBox).Text
Dim DBConn as OleDbConnection
Dim DBUpdate As New OleDbCommand
DBConn = New OleDbConnection( _
"PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
& "DATA SOURCE=" _
& Server.MapPath("EmployeeDatabase.mdb;"))
DBUpdate.CommandText = "Update Employee " _
& "Set LastName = '" & LastName &"', " _
& "FirstName = '" & FirstName & "' " _
& "Where ID = " & TheID
DBUpdate.Connection = DBConn
DBUpdate.Connection.Open
DBUpdate.ExecuteNonQuery()
DBConn.Close
dgEmps.EditItemIndex = -1
BuildDataList
End Sub
Sub CommandAdd_Click(Sender As Object, E As CommandEventArgs)
Dim DBConn as OleDbConnection
Dim DBAdd As New OleDbCommand
DBConn = New OleDbConnection( _
"PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
& "DATA SOURCE=" _
& Server.MapPath("EmployeeDatabase.mdb;"))
DBAdd.CommandText = "Insert Into Employee (LastName) " _
& "values ('new LastName')"
DBAdd.Connection = DBConn
DBAdd.Connection.Open
DBAdd.ExecuteNonQuery()
DBConn.Close
dgEmps.EditItemIndex = 0
BuildDataList
End Sub
Sub BuildDataList ()
Dim DBConn as OleDbConnection
Dim DBCommand As OleDbDataAdapter
Dim DSPageData as New DataSet
DBConn = New OleDbConnection( _
"PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
& "DATA SOURCE=" _
& Server.MapPath("EmployeeDatabase.mdb;"))
DBCommand = New OleDbDataAdapter _
("Select * From Employee " _
& "Order By LastName, FirstName", DBConn)
DBCommand.Fill(DSPageData, _
"Employee")
dgEmps.DataSource = _
DSPageData.Tables("Employee").DefaultView
dgEmps.DataBind()
End Sub
添加一行数据到datagrid控件中-www.
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