Tạo Slideshow động sử dụng jQuery trong Asp.net
(jQuery Slide trong Asp.net) - Để tạo Slide có rất nhiều công cụ để làm việc này, tùy vào từng công việc, từng yêu cầu mà người lập trình sẽ lựa chọn cho phù hợp. Hôm nay Thủ thuật lập trình sẽ giới thiệu với các bạn cách sử dụng jQuery để tạo Slide. Thông tin Slide được lấy từ bảng dữ liệu trong CSDL SQL như: Tên, mô tả, đường dẫn và tên ảnh.
- B1: Tạo CSDL SQL SlideShow
STT | Tên trường | Kiểu trường | Ghi chú |
1 | ItemID | Int | Trường tự tăng |
2 | Title | nvarchar(250) | |
3 | Description | nvarchar(500) | Mô tả |
4 | ImageURL | nvarchar(350) | |
5 | SortOrder | Int | Thứ tự sắp xếp |
6 | IsVisible | bit |
- B3: Nhập dữ liệu cho bảng SlideShows
- B4: Tạo stored procedure trong SQL Server
CREATE procedure [dbo].[Pro_SlideShow_List]
@IsVisible bit
as
declare @strSQL nvarchar(1000)
declare @strWhere nvarchar(500)
declare @strOrder nvarchar (50)
set @strSQL= 'Select * from SlideShows'
set @strWhere =' where 1=1'
if @IsVisible=0
set @strWhere= @strWhere +' and (IsVisible=0 Or IsVisible Is Null)'
set @strOrder =' Order by SortOrder, Title'
set @strSQL=@strSQL+@strWhere+@strOrder
print @strSQL
exec sp_executesql @strSQL
- B5: Tạo Project trong Microsoft Visual Studio 2010
Trong Visual Studio tạo 1 Class có tên: Utility và nhập đoạn Code phía dưới cho Class này.
C# Code
C# Code
using System;
using System.Collections.Generic;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;
namespace jQuerySlidePanel
{
public class SqlDataProvider
{
#region
"Membres Prives"
private string
_connectionString;
#endregion
#region
"Constructeurs"
public SqlDataProvider()
{
try
{
_connectionString = ConfigurationManager.ConnectionStrings["SiteSqlServer"].ConnectionString;
}
catch
{
}
}
#endregion
#region
"Proprietes"
public string ConnectionString
{
get { return
_connectionString; }
}
#endregion
#region
"Functions"
public DataTable
FillTable(string ProcName, params ObjectPara[]
Para)
{
try
{
DataTable tb = new DataTable();
SqlDataAdapter adap = new SqlDataAdapter(ProcName,
_connectionString);
adap.SelectCommand.CommandType = CommandType.StoredProcedure;
if (Para != null)
{
foreach (ObjectPara
p in Para)
{
adap.SelectCommand.Parameters.Add(new SqlParameter(p.Name, p.Value));
}
}
adap.Fill(tb);
return tb;
}
catch
{
return null;
}
}
#endregion
}
public class ObjectPara
{
string _name;
object _Value;
public ObjectPara(string
Pname, object PValue)
{
_name = Pname;
_Value = PValue;
}
public string Name
{
get { return _name; }
set { _name = value;
}
}
public object Value
{
get { return _Value;
}
set { _Value = value;
}
}
}
}
VB.NET Code
Imports System.Data.SqlClient
Imports System.Data
Namespace jQuerySlidePanel
Public Class SqlDataProvider
#Region "Membres
Prives"
Shared _IsError As Boolean = False
Private _connectionString As
String
#End Region
#Region "Constructeurs"
Public Sub New()
Try
_connectionString = ConfigurationManager.ConnectionStrings("SiteSqlServer").ConnectionString
_connectionString = ConfigurationManager.ConnectionStrings("SiteSqlServer").ConnectionString
_IsError = False
Catch ex As Exception
_IsError = True
End Try
End Sub
#End Region
#Region "Proprietes"
Public ReadOnly Property ConnectionString() As
String
Get
Return _connectionString
End Get
End Property
#End Region
#Region "Functions"
Public Function
FillTable(ByVal sql As
String) As DataTable
Try
Dim tb As
New DataTable
Dim adap As
New SqlDataAdapter(sql,
_connectionString)
adap.Fill(tb)
Return tb
Catch ex As Exception
Return Nothing
End Try
End Function
Public Function
FillTable(ByVal ProcName As String, ByVal ParamArray
Para() As ObjectPara)
As DataTable
Try
Dim tb As
New DataTable
Dim adap As
New SqlDataAdapter(ProcName,
_connectionString)
adap.SelectCommand.CommandType = CommandType.StoredProcedure
If Not
Para Is Nothing
Then
For Each
p As ObjectPara
In Para
adap.SelectCommand.Parameters.Add(New SqlParameter(p.Name, p.Value))
Next
End If
adap.Fill(tb)
Return tb
Catch ex As Exception
Return Nothing
End Try
End Function
#End Region
End Class
Public Class ObjectPara
Dim _name As String
Dim _Value As Object
Sub New(ByVal Pname As String, ByVal PValue As Object)
_name = Pname
_Value = PValue
End Sub
Public Property
Name() As String
Get
Return _name
End Get
Set(ByVal value As String)
_name = value
End Set
End Property
Public Property
Value() As Object
Get
Return _Value
End Get
Set(ByVal value As Object)
_Value = value
End Set
End Property
End Class
End Namespace
Chú ý: Thuộc tính SiteSqlServer chính là chuỗi Connect với SQL Server trong file Web.Config
- B7: Mở file Site.Master dạng HTML và bổ xung đoạn mã phía dưới trong thẻ Head
- B8: Mở file Default.aspx dưới dạng HTML và nhập mã HTML
<head id="Head1" runat="server">
<title>Dynamic jQuery Slide Panel</title>
<link href="~/Styles/Site.css"
rel="stylesheet"
type="text/css"
/>
<link href="~/Styles/featured_slide.css"
rel="stylesheet"
type="text/css"
/>
<link href="~/Styles/Slidepanel.css"
rel="stylesheet"
type="text/css"
/>
<script type="text/javascript"
src="/Js/jquery-1.4.1.min.js"></script>
<script type="text/javascript"
src="/Js/jquery.slidepanel.setup.js"></script>
<script type="text/javascript"
src="/Js/jquery.cycle.min.js"></script>
<script type="text/javascript"
src="/Js/jquery.cycle.setup.js"></script>
<asp:ContentPlaceHolder
ID="HeadContent"
runat="server">
</asp:ContentPlaceHolder>
</head>
- B8: Mở file Default.aspx dưới dạng HTML và nhập mã HTML
<%@ Page
Title="Dynamic
jQuery Slide Panel" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="jQuerySlidePanel._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<div style="background-color:#423739;">
<asp:Literal ID="ltSlide"
runat="server"></asp:Literal>
</div>
</asp:Content>
- B9: Viết Code cho file Default.aspx
C# Code
VB.NET Code
C# Code
//Visit http://www.laptrinhdotnet.com
for more ASP.NET Tutorials
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Diagnostics;
using System.Web.UI;
namespace jQuerySlidePanel
{
public partial class _Default :
System.Web.UI.Page
{
#region
"Create SlidePanel"
private void
CreateSlide()
{
DataTable objBind = new
DataTable();
string sSlide = "";
string sTitle = "";
string ImagePath = "";
objBind = BindData();
if (objBind != null)
{
if (objBind.Rows.Count > 0)
{
sSlide += "<div class=\"wrapper
col2\">";
sSlide += " <div
id=\"featured_slide\">";
foreach (DataRow
row in objBind.Rows)
{
var _with1 = row;
sTitle = row["Title"].ToString();
ImagePath = row["ImageURL"].ToString();
if (File.Exists(MapPath(ImagePath)))
{
ImagePath =
Page.ResolveUrl(ImagePath);
}
sSlide += "
<div class=\"featured_box\">";
sSlide += "<img alt=\"" + sTitle + "\" src=\"" + ImagePath + "\" />";
sSlide += "
</div>";
}
sSlide += " </div>";
sSlide += "</div>";
}
}
ltSlide.Text = sSlide;
}
#endregion
#region
"Bind Data"
private DataTable
BindData()
{
SqlDataProvider objSQL = new
SqlDataProvider();
DataTable objBind = objSQL.FillTable("Pro_SlideShow_List", new ObjectPara("@IsVisible", 1));
return objBind;
}
#endregion
#region
"Event Handles"
protected void
Page_Load(object sender, System.EventArgs e)
{
try
{
if (!IsPostBack)
{
CreateSlide();
}
}
catch
{
}
}
#endregion
}
}
VB.NET Code
'Visit
http://thuthuatlaptrinh.blogspot.com for more ASP.NET Tutorials
Imports System.IO
Namespace jQuerySlidePanel
Public Class _Default
Inherits System.Web.UI.Page
#Region "Create
SlidePanel"
Private Sub
CreateSlide()
Dim objBind As New DataTable
Dim sSlide As String = ""
Dim sTitle As String = ""
Dim ImagePath As String = ""
objBind = BindData()
If Not objBind Is Nothing Then
If objBind.Rows.Count > 0 Then
sSlide &= "<div
class=""wrapper col2"">" & vbCrLf
sSlide &= " <div
id=""featured_slide"">" & vbCrLf
For Each
row As DataRow
In objBind.Rows
With row
sTitle = row("Title").ToString
ImagePath = row("ImageURL").ToString
If File.Exists(MapPath(ImagePath))
Then
ImagePath =
Page.ResolveUrl(ImagePath)
End If
sSlide &= "
<div class=""featured_box"">"
& vbCrLf
sSlide &= "<img alt=""" & sTitle
& """ src="""
& ImagePath & """
/>"
sSlide &= "
</div>" & vbCrLf
End With
Next
sSlide &= " </div>" & vbCrLf
sSlide &= "</div>"
& vbCrLf
End If
End If
ltSlide.Text = sSlide
End Sub
#End Region
#Region "Bind Data"
Private Function
BindData() As DataTable
Dim objSQL As New SqlDataProvider
Dim objBind As DataTable = objSQL.FillTable("Pro_SlideShow_List", New ObjectPara("@IsVisible", 1))
Return objBind
End Function
#End Region
#Region "Event
Handles"
Protected Sub
Page_Load(ByVal sender As
Object, ByVal e
As System.EventArgs)
Handles Me.Load
Try
If Page.IsPostBack = False Then
CreateSlide()
End If
Catch ex As Exception
End Try
End Sub
#End Region
End Class
End Namespace
Chúc các bạn thành công!
Quang Bình
No Comment to " Tạo Slideshow động sử dụng jQuery trong Asp.net "