ASP.NET Oracle Delete Record |
ASP.NET Oracle Delete Record เป็นตัวอย่างการเขียน ASP.NET กับ Oracle ในการลบข้อมูลในฐานข้อมูล
Instance NameSpace
VB.NETImports System.Data
Imports System.Data.OracleClient
ASP.NET & System.Data.OracleClient
Language Code :  VB.NET || C#
AspNetOracleDeleteRecord.aspx
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.OracleClient"%>
<%@ Page Language="VB" %>
<script runat="server">
Dim objConn As OracleConnection
Dim objCmd As OracleCommand
Dim strSQL As String
Dim dtReader As OracleDataReader
Sub Page_Load(sender As Object, e As EventArgs)
Dim strConnString As String
strConnString = "Data Source=TCDB;User Id=myuser;Password=mypassword;"
objConn = New OracleConnection(strConnString)
objConn.Open()
IF Not Page.IsPostBack() Then
BindData()
End IF
End Sub
Sub BindData()
strSQL = "SELECT * FROM customer"
objCmd = New OracleCommand(strSQL, objConn)
dtReader = objCmd.ExecuteReader()
'*** BindData to Repeater ***'
myRepeater.DataSource = dtReader
myRepeater.DataBind()
dtReader.Close()
dtReader = Nothing
End Sub
Sub Page_UnLoad()
objConn.Close()
objConn = Nothing
End Sub
Sub myRepeater_ItemCommand(ByVal source As Object, ByVal e As RepeaterCommandEventArgs) Handles myRepeater.ItemCommand
IF e.CommandName = "Delete" Then
'*** CustomerID ***'
Dim lblCustomerID As Label = CType(e.Item.FindControl("lblCustomerID"),Label)
strSQL = "DELETE FROM customer WHERE CustomerID = '"& lblCustomerID.Text &"' "
objCmd = New OracleCommand(strSQL, objConn)
objCmd.ExecuteNonQuery()
BindData()
End IF
End Sub
Sub myRepeater_ItemDataBound(ByVal sender As Object, ByVal e As RepeaterItemEventArgs) Handles myRepeater.ItemDataBound
'*** CustomerID ***'
Dim lblCustomerID As Label = CType(e.Item.FindControl("lblCustomerID"),Label)
IF Not IsNothing(lblCustomerID) Then
lblCustomerID.Text = e.Item.DataItem("CustomerID")
End IF
'*** Name ***'
Dim lblName As Label = CType(e.Item.FindControl("lblName"),Label)
IF Not IsNothing(lblName) Then
lblName.Text = e.Item.DataItem("Name")
End IF
'*** Email ***'
Dim lblEmail As Label = CType(e.Item.FindControl("lblEmail"),Label)
IF Not IsNothing(lblEmail) Then
lblEmail.Text = e.Item.DataItem("Email")
End IF
'*** CountryCode ***'
Dim lblCountryCode As Label = CType(e.Item.FindControl("lblCountryCode"),Label)
IF Not IsNothing(lblCountryCode) Then
lblCountryCode.Text = e.Item.DataItem("CountryCode")
End IF
'*** Budget ***'
Dim lblBudget As Label = CType(e.Item.FindControl("lblBudget"),Label)
IF Not IsNothing(lblBudget) Then
lblBudget.Text = e.Item.DataItem("Budget")
End IF
'*** Used ***'
Dim lblUsed As Label = CType(e.Item.FindControl("lblUsed"),Label)
IF Not IsNothing(lblUsed) Then
lblUsed.Text = e.Item.DataItem("Used")
End IF
'*** Used ***'
Dim lnkDelete As LinkButton = CType(e.Item.FindControl("lnkDelete"), LinkButton)
If Not IsNothing(lnkDelete) Then
lnkDelete.Attributes.Add("OnClick", "return confirm('Delete Record?');")
End If
End Sub
</script>
<html>
<head>
<title>ThaiCreate.Com ASP.NET - Oracle</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Repeater id="myRepeater" runat="server">
<HeaderTemplate>
<table border="1">
<tr>
<th>CustomerID</th>
<th>Name</th>
<th>Email</th>
<th>CountryCode</th>
<th>Budget</th>
<th>Used</th>
<th>Delete</th>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td align="center"><asp:Label id="lblCustomerID" runat="server"></asp:Label></td>
<td><asp:Label id="lblName" runat="server"></asp:Label></td>
<td><asp:Label id="lblEmail" runat="server"></asp:Label></td>
<td align="center"><asp:Label id="lblCountryCode" runat="server"></asp:Label></td>
<td align="right"><asp:Label id="lblBudget" runat="server"></asp:Label></td>
<td align="right"><asp:Label id="lblUsed" runat="server"></asp:Label></td>
<td align="right"><asp:LinkButton id="lnkDelete" CommandName="Delete" runat="server">Delete</asp:LinkButton></td>
</tr>
</ItemTemplate>
</asp:Repeater>
</form>
</body>
</html>
Screenshot
Oracle Create TNS Name (Net Service)
ASP.NET System.Data.OracleClient - Parameter Query
Oracle Relation CasCade
Note!! โปรดทราบ เนื่องจาก System.Data.OracleClient ได้ถูก Obsolete ไปแล้ว ฉะนั้นจึงจะต้องใช้ Oracle.DataAccess แทน โดยสามารถประกาศเรียกได้จาก
จากนั้นให้ใช้ using หรือ Import คอนเน็คเตอร์ใหม่คือ Oracle.DataAccess ส่วนคำสั่งอื่น ๆ ยังคงเหมือนเดิม
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 ช่วยกันสนับสนุนรักษาเว็บไซต์ความรู้แห่งนี้ไว้ด้วยการสนับสนุน Source Code 2.0 ของทีมงานไทยครีเอท
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By : |
ThaiCreate.Com Team (บทความเป็นลิขสิทธิ์ของเว็บไทยครีเอทห้ามนำเผยแพร่ ณ เว็บไซต์อื่น ๆ) |
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Score Rating : |
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Create/Update Date : |
2008-10-26 23:08:11 /
2017-03-29 10:51:48 |
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