(C#) ASP.NET Oracle Edit/Update Record |
(C#) ASP.NET Oracle Edit/Update Record เป็นตัวอย่างการเขียน ASP.NET กับ Oracle ในการเรียกข้อมูลจากฐานข้อมูลมาแก้ไข
Instance NameSpace
C#Using System.Data;
Using System.Data.OracleClient;
ASP.NET & System.Data.OracleClient
Language Code : VB.NET ||  C#
AspNetOracleEditListRecord.aspx
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.OracleClient"%>
<%@ Page Language="C#" Debug="true" %>
<script runat="server">
OracleConnection objConn;
OracleCommand objCmd;
void Page_Load(object sender,EventArgs e)
{
String strConnString;
strConnString = "Data Source=TCDB;User Id=myuser;Password=mypassword;";
objConn = new OracleConnection(strConnString);
objConn.Open();
BindData();
}
void BindData()
{
String strSQL;
strSQL = "SELECT * FROM customer";
OracleDataReader dtReader;
objCmd = new OracleCommand(strSQL, objConn);
dtReader = objCmd.ExecuteReader();
//*** BindData to Repeater ***//
myRepeater.DataSource = dtReader;
myRepeater.DataBind();
dtReader.Close();
dtReader = null;
}
void Page_UnLoad()
{
objConn.Close();
objConn = null;
}
protected void myRepeater_ItemDataBound(Object sender, RepeaterItemEventArgs e)
{
//*** CustomerID ***//
Label lblCustomerID = (Label)(e.Item.FindControl("lblCustomerID"));
if (lblCustomerID != null)
{
lblCustomerID.Text = (string)DataBinder.Eval(e.Item.DataItem, "CustomerID");
}
//*** Email ***//
Label lblName = (Label)(e.Item.FindControl("lblName"));
if (lblName != null)
{
lblName.Text = (string)DataBinder.Eval(e.Item.DataItem, "Name");
}
//*** Name ***//
Label lblEmail = (Label)(e.Item.FindControl("lblEmail"));
if (lblEmail != null)
{
lblEmail.Text = (string)DataBinder.Eval(e.Item.DataItem, "Email");
}
//*** CountryCode ***//
Label lblCountryCode = (Label)(e.Item.FindControl("lblCountryCode"));
if (lblCountryCode != null)
{
lblCountryCode.Text = (string)DataBinder.Eval(e.Item.DataItem, "CountryCode");
}
//*** Budget ***//
Label lblBudget = (Label)(e.Item.FindControl("lblBudget"));
if (lblBudget != null)
{
lblBudget.Text = DataBinder.Eval(e.Item.DataItem, "Budget").ToString();
}
//*** Used ***//
Label lblUsed = (Label)(e.Item.FindControl("lblUsed"));
if (lblUsed != null)
{
lblUsed.Text = DataBinder.Eval(e.Item.DataItem, "Used").ToString();
}
//*** Hyperlink ***//
HyperLink hplEdit = (HyperLink)(e.Item.FindControl("hplEdit"));
if (hplEdit != null)
{
hplEdit.Text = "Edit";
hplEdit.NavigateUrl = "AspNetOracleEditForm.aspx?CustomerID=" + (string)DataBinder.Eval(e.Item.DataItem, "CustomerID");
}
}
</script>
<html>
<head>
<title>ThaiCreate.Com ASP.NET - Oracle</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Repeater id="myRepeater" runat="server" OnItemDataBound="myRepeater_ItemDataBound">
<HeaderTemplate>
<table border="1">
<tr>
<th>CustomerID</th>
<th>Name</th>
<th>Email</th>
<th>CountryCode</th>
<th>Budget</th>
<th>Used</th>
<th>Edit</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:Hyperlink id="hplEdit" runat="server"></asp:Hyperlink></td>
</tr>
</ItemTemplate>
</asp:Repeater>
</form>
</body>
</html>
AspNetOracleEditForm.aspx
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.OracleClient"%>
<%@ Page Language="C#" Debug="true" %>
<script runat="server">
OracleConnection objConn = new OracleConnection();
OracleCommand objCmd = new OracleCommand();
OracleDataReader dtReader;
String strConnString,strSQL;
void Page_Load(object sender,EventArgs e)
{
strConnString = "Data Source=TCDB;User Id=myuser;Password=mypassword;";
objConn = new OracleConnection(strConnString);
objConn.Open();
if(!Page.IsPostBack)
{
ViewData();
}
}
void ViewData()
{
//*** DataTable ***//
OracleDataAdapter dtAdapter;
DataTable dt = new DataTable();
strSQL = "SELECT * FROM customer WHERE CustomerID = '"+ Request.QueryString["CustomerID"] +"' ";
dtAdapter = new OracleDataAdapter(strSQL, objConn);
dtAdapter.Fill(dt);
if(dt.Rows.Count > 0)
{
this.txtCustomerID.Text = (string)dt.Rows[0]["CustomerID"];
this.txtName.Text = (string)dt.Rows[0]["Name"];
this.txtEmail.Text = (string)dt.Rows[0]["Email"];
this.txtCountryCode.Text = (string)dt.Rows[0]["CountryCode"];
this.txtBudget.Text = (string)dt.Rows[0]["Budget"].ToString();
this.txtUsed.Text = (string)dt.Rows[0]["Used"].ToString();
}
}
void btnSave_Click(Object sender, EventArgs e)
{
strSQL = "UPDATE customer SET " +
" CustomerID = '"+ this.txtCustomerID.Text +"' " +
" ,Name = '"+ this.txtName.Text +"' " +
" ,Email = '"+ this.txtEmail.Text +"' " +
" ,CountryCode = '"+ this.txtCountryCode.Text +"' " +
" ,Budget = '"+ this.txtBudget.Text +"' " +
" ,Used = '"+ this.txtUsed.Text +"' " +
" WHERE CustomerID = '" + Request.QueryString["CustomerID"] + "' ";
objCmd = new OracleCommand();
objCmd.Connection = objConn;
objCmd.CommandText = strSQL;
objCmd .CommandType = CommandType.Text;
this.pnlAdd.Visible = false;
try
{
objCmd.ExecuteNonQuery();
this.lblStatus.Text = "Record Updated";
this.lblStatus.Visible = true;
}
catch (Exception ex)
{
this.lblStatus.Text = "Record can not update";
}
}
void Page_UnLoad()
{
objConn.Close();
objConn = null;
}
</script>
<html>
<head>
<title>ThaiCreate.Com ASP.NET - Oracle</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Panel id="pnlAdd" runat="server">
<table width="353" border="1">
<tbody>
<tr>
<td width="102">
<asp:Label id="lblCustomerID" runat="server" text="CustomerID"></asp:Label></td>
<td width="235">
<asp:TextBox id="txtCustomerID" runat="server" Width="79px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label id="lblName" runat="server" text="Name"></asp:Label></td>
<td>
<asp:TextBox id="txtName" runat="server" Width="177px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label id="lblEmail" runat="server" text="Email"></asp:Label></td>
<td>
<asp:TextBox id="txtEmail" runat="server" Width="155px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label id="lblCountryCode" runat="server" text="CountryCode"></asp:Label></td>
<td>
<asp:TextBox id="txtCountryCode" runat="server" Width="38px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label id="lblBudget" runat="server" text="Budget"></asp:Label></td>
<td>
<asp:TextBox id="txtBudget" runat="server" Width="76px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label id="lblUsed" runat="server" text="Used"></asp:Label></td>
<td>
<asp:TextBox id="txtUsed" runat="server" Width="76px"></asp:TextBox>
</td>
</tr>
</tbody>
</table>
<br />
<asp:Button id="btnSave" onclick="btnSave_Click" runat="server" Text="Save"></asp:Button>
<br />
</asp:Panel>
<asp:Label id="lblStatus" runat="server" visible="False"></asp:Label>
</form>
</body>
</html>
Screenshot
Oracle Create TNS Name (Net Service)
ASP.NET System.Data.OracleClient - Parameter Query
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 23:07:55 /
2017-03-29 10:50:59 |
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