ASP.NET(vb.net) & DataList - Oracle Database - System.Data.OracleClient Example scripts how to use DataList control in asp.net , Using Connector System.Data.OracleClient namespace is the .NET Framework Data Provider how to the connect to Oracle Database.
ShotDev Focus:
- ASP.NET(vb.net) & DataList - Oracle Database - System.Data.OracleClient
Example
DataList1.aspx
- <%@ Page Language="VB" AutoEventWireup="false" CodeFile="DataList1.aspx.vb" Inherits="DataList1" %>
- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml" >
- <head runat="server">
- <title>ShotDev.Com Tutorial</title>
- </head>
- <body>
- <form id="form1" runat="server" enctype="multipart/form-data">
- <asp:DataList id="myDataList"
- runat="server" RepeatColumns="2"
- cellpadding="2"
- cellspacing="2"
- borderstyle="inset">
- <HeaderTemplate>
- <b>My Category</b><br/>
- </HeaderTemplate>
- <ItemTemplate>
- <div style="width:100px" align="center">
- <asp:Image id="imgPicture" runat="server"></asp:Image>
- <br />
- <asp:HyperLink id="hplCategory" runat="server"></asp:HyperLink>
- <br />
- <asp:LinkButton id="lnkEdit" runat="server" CommandName="Edit">Edit</asp:LinkButton>
- </div>
- </ItemTemplate>
- <EditItemTemplate>
- <asp:Label id="lblCateID" runat="server" Visible = "False" text='<%#Container.DataItem("CategoryID")%>'></asp:Label>
- <asp:TextBox id="txtCategory" runat="server" text='<%#Container.DataItem("CategoryName")%>'></asp:TextBox><br />
- <input id="filPicture" type="file" runat="server"><br />
- <asp:LinkButton id="lnkUpdate" runat="server" CommandName="Update">Update</asp:LinkButton>
- <asp:LinkButton id="lnkCancel" runat="server" CommandName="Cancel">Cancel</asp:LinkButton>
- </EditItemTemplate>
- </asp:DataList>
- </form>
- </body>
- </html>
DataList1.aspx.vb
- Imports system.Data
- Imports System.Data.OracleClient
- Partial Class DataList1
- Inherits System.Web.UI.Page
- Dim objConn As OracleConnection
- Dim objCmd As OracleCommand
- Dim strSQL As String
- Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
- 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
- Protected Sub BindData()
- strSQL = "SELECT * FROM category"
- Dim dtReader As OracleDataReader
- objCmd = New OracleCommand(strSQL, objConn)
- dtReader = objCmd.ExecuteReader()
- '*** BindData to DataList ***'
- myDataList.DataSource = dtReader
- myDataList.DataBind()
- dtReader.Close()
- dtReader = Nothing
- End Sub
- Protected Sub Page_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Unload
- objConn.Close()
- objConn = Nothing
- End Sub
- Protected Sub myDataList_CancelCommand(ByVal source As Object, ByVal e As DataListCommandEventArgs) Handles myDataList.CancelCommand
- myDataList.EditItemIndex = -1
- BindData()
- End Sub
- Protected Sub myDataList_EditCommand(ByVal source As Object, ByVal e As DataListCommandEventArgs) Handles myDataList.EditCommand
- myDataList.EditItemIndex = e.Item.ItemIndex
- BindData()
- End Sub
- Protected Sub myDataList_ItemDataBound(ByVal sender As Object, ByVal e As DataListItemEventArgs) Handles myDataList.ItemDataBound
- '*** Image ***'
- Dim img As Image = CType(e.Item.FindControl("imgPicture"), Image)
- If Not IsNothing(img) Then
- img.ImageUrl = "images/" & e.Item.DataItem("Picture")
- 'img.Attributes.Add("OnClick","window.location='http://www.shotdev.com?CateID="&e.Item.DataItem("CategoryID")&"'")
- 'img.Style.Add("cursor","hand")
- End If
- '*** HyperLink ***'
- Dim hplCate As HyperLink = CType(e.Item.FindControl("hplCategory"), HyperLink)
- If Not IsNothing(hplCate) Then
- hplCate.Text = e.Item.DataItem("CategoryName")
- hplCate.ToolTip = e.Item.DataItem("CategoryName")
- hplCate.NavigateUrl = "http://www.shotdev.com?CateID=" & e.Item.DataItem("CategoryID")
- End If
- End Sub
- Protected Sub myDataList_UpdateCommand(ByVal source As Object, ByVal e As DataListCommandEventArgs) Handles myDataList.UpdateCommand
- '*** CategoryID ***'
- Dim lblCateID As Label = CType(e.Item.FindControl("lblCateID"), Label)
- '*** txtCategory ***'
- Dim txtCategory As TextBox = CType(e.Item.FindControl("txtCategory"), TextBox)
- strSQL = "UPDATE category SET CategoryName = '" & txtCategory.Text & "' " & _
- " WHERE CategoryID = " & lblCateID.Text & " "
- objCmd = New OracleCommand(strSQL, objConn)
- objCmd.ExecuteNonQuery()
- '*** If Select File Upload ***'
- Dim filPicture As HtmlInputFile = CType(e.Item.FindControl("filPicture"), HtmlInputFile)
- Dim strFileName As String
- If Trim(filPicture.PostedFile.FileName) <> "" Then
- strFileName = System.IO.Path.GetFileName(filPicture.Value)
- filPicture.PostedFile.SaveAs(Server.MapPath(strFileName))
- strSQL = "UPDATE category SET Picture = '" & strFileName & "' " & _
- " WHERE CategoryID = " & lblCateID.Text & " "
- objCmd = New OracleCommand(strSQL, objConn)
- objCmd.ExecuteNonQuery()
- End If
- myDataList.EditItemIndex = -1
- BindData()
- End Sub
- End Class
Create a asp.net file and save to path root-path/dotnet/
Run
http://localhost/dotnet/DataList1.aspx
Screenshot
.
.
.
Download this script.
Loading ...