Tạo Modal Popup Confirm sử dụng AJAX Modal Popup Extender trong ASP.Net

By Unknown - Saturday, May 9, 2015 - No Comments

(Tạo Modal Popup trong Asp.net) Trong bài viết này, thủ thuật tin học sẽ hướng dẫn các bạn cách sử dụng ASP.Net AJAX Control Toolkit ModalPopupExtender kết hợp với các thuộc tính css của bootstrap để tạo Popup trong asp.net. Cụ thể ở đây là hộp thoại Comfirm hỏi người sử dụng trước khi xóa User trong 1 danh sách.

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Dưới đây là hình ảnh hộp thoại Comfirm mặc định (bên trái) và hộp thoại sau khi đã được chỉnh sửa (bên phải). Như vậy sau khi chỉnh sửa xong hộp thoại mới trông sẽ chuyên nghiệp hơn.

- B1: Tạo Bảng Users có cấu trúc phía dưới trong CSDL SQL Server.

STT	Tên trường	Kiểu trường	Ghi chú
1	UserID	Int	Trường tự tăng
2	Username	nvarchar(100)
3	FirstName	nvarchar(50)
4	LastName	nvarchar(50)
5	Email	nvarchar(250)
6	IsDeleted	bit
7	CreatedOnDate	datetime
8	LastModifiedOnDate	datetime

- B2: Nhập dữ liệu cho bảng Users

- B3: Tạo stored procedure trong SQL Server

CREATE procedure [dbo].[Pro_Users_List]

@IsVisible bit

declare @strSQL nvarchar(1000)

declare @strWhere nvarchar(500)

declare @strOrder nvarchar (50)

set @strSQL= 'Select * from Users'

set @strWhere =' where 1=1'

if @IsVisible=1

set @strWhere= @strWhere +' and (IsVisible=1)'

if @IsVisible=0

set @strWhere= @strWhere +' and (IsVisible=0 Or IsVisible Is Null)'

set @strOrder =' Order by UserName'

set @strSQL=@strSQL+@strWhere+@strOrder

print @strSQL

exec sp_executesql @strSQL

Bạn có thể tải về bảng cơ sở dữ liệu SQL bằng cách nhấn vào liên kết tải về dưới đây

- B4: 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.

Imports System.Data.SqlClient

Imports System.Data

Namespace ModalPopupConfirmBox

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

_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))

End If

adap.Fill(tb)

Return tb

Catch ex As Exception

Return Nothing

End Try

End Function

Public Function RunSQL(ByVal ProcName As String, ByVal ParamArray Para() As ObjectPara) As Object

Try

Dim _cnn As New SqlConnection(_connectionString)

_cnn.Open()

Dim cmd As New SqlCommand(ProcName, _cnn)

cmd.CommandType = CommandType.StoredProcedure

For Each p As ObjectPara In Para

cmd.Parameters.Add(New SqlParameter(p.Name, p.Value))

Return cmd.ExecuteScalar

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

Public Class MyEventArgs

Inherits EventArgs

Private Name As String

Private MyId As String

Public Property SelectedName() As String

Get

Return Name

End Get

Set(ByVal value As String)

Name = value

End Set

End Property

Public Property Id() As String

Get

Return MyId

End Get

Set(ByVal value As String)

MyId = 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

- B5: Download thư viện AjaxControlToolkit tại địa chỉ: Download

- B6: Giải nén AjaxControlToolkit.Binary.NET4, và References Ajaxcontroltoolkit.dll trong thư mục vừa giải nén vào Project.

- B7: Download thư viện Bootstrap, giải nén và copy file bootstrap.css vào thư mục Styles trong Project

- B8: Tạo file Button.css trong thư mục Styles và nhập các thông tin phía dưới

.icon-yes {

background-image: url(Images/yes.png);

background-position: center center;

height: 16px;

width: 16px;

}

.icon-no {

background-image: url(Images/no.png);

background-position: center center;

height: 16px;

width: 16px;

}

- B9: Tạo file GridStyle.css trong thư mục Styles và nhập các thông tin phía dưới

.GridStyle

{

font-weight: normal;

font-family: Arial;

border: solid 1px #cbcbcb;

}

.GridStyle_AltRowStyle

{

background-color: #edf5ff;

}

.GridStyle_RowStyle td, .GridStyle_AltRowStyle td

{

padding: 4px 6px 4px 6px;

border-color: #cbcbcb #cbcbcb #cbcbcb #cbcbcb;

border-style: solid solid solid none;

border-width: 1px 1px 1px medium;

}

.GridStyle_HeaderStyle th

{

background: url(Images/sprite.png) repeat-x 0px 0px;

border-color: #cbcbcb #cbcbcb #cbcbcb #cbcbcb;

border-style: solid solid solid none;

border-width: 1px 1px 1px medium;

color: #0f5590;

font-weight: bold;

padding: 5px 5px 5px 5px;

text-align: center;

vertical-align:bottom;

font-family:Arial;

font-size:12px;

}

.GridStyle_HeaderStyle td

{

font-family:Arial;

font-size:12px;

font-weight: bold;

text-decoration: none;

text-align: center;

color: #0f5590;

display: block;

padding-right: 10px;

vertical-align: bottom;

}

.GridStyle_HeaderStyle th

{

background: url(Images/sprite.png) repeat-x 0px 0px;

border-color: #cbcbcb #cbcbcb #cbcbcb #cbcbcb;

border-style: solid solid solid none;

border-width: 1px 1px 1px medium;

color: #0f5590;

font-weight: bold;

padding: 5px 5px 5px 5px;

text-align: center;

vertical-align:bottom;

font-family:Arial;

font-size:12px;

}

.GridStyle_FooterStyle td

{

font-family:Arial;

font-size:13px;

font-weight: bold;

text-decoration: none;

padding: 6px 6px 6px 6px;

border-color: #cbcbcb #cbcbcb #cbcbcb #cbcbcb;

border-style: solid solid solid none;

border-width: 1px 1px 1px medium;

background-color:#E0E0E0;

}

/* mouseover row style */

.GridStyle tr:hover{ background-color:#efefef;}

- B10: Tạo thư mục UserControls và thêm file Popup_ConfirmDelete.ascx, mở file dưới dạng HTML và nhập thông tin phía dưới.

<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="Popup_ConfirmDelete.ascx.vb" Inherits="ModalPopupConfirmBox.UserControls.Popup_ConfirmDelete" %>

<%@ Register TagPrefix="cc1" Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" %>

<asp:Panel ID="pnlpopup" runat="server" style="display:none">

<asp:UpdatePanel ID="updatePanelPopup" runat="server" UpdateMode="Conditional">

<asp:Button id="cmdShowPopup" runat="server" style="display:none" />

<cc1:ModalPopupExtender ID="ModalPopupExtender_Popup" runat="server" TargetControlID="cmdShowPopup" X="750" Y="220"

PopupControlID="pnlpopup" CancelControlID="cmdNo" BackgroundCssClass="ModalPopupBG" Drag="True" />

<asp:label id="lblHeader" runat="server" Text="Confirmation"></asp:label>

</h4>

</div>

<tr>

<asp:Label ID="lblMessage" CssClass="popup_Message" runat="server" Text="Do you want to delete this record?"></asp:Label>

</td>

</tr>

<tr>

<asp:Label ID="lblItemID" Visible="false" runat="server"/>

</td>

</tr>

</table>

</div>

<asp:LinkButton id="cmdYes" runat="server" CssClass="btn btn-small" CausesValidation="false">

</asp:LinkButton> 

<asp:LinkButton id="cmdNo" runat="server" CssClass="btn btn-small" Causesvalidation="false">

</asp:LinkButton>

</div>

</ContentTemplate>

</asp:UpdatePanel>

</asp:Panel>

- B11: Download các file ảnh tại đây, Copy ảnh lần lượt vào các thư mục sau:

- delete.gif vào thư mục Images
- no.png, yes.png, sprite.png vào thư mục Styles\Images

- B12: Nhập Code phía dưới cho file Popup_ConfirmDelete.ascx

Namespace ModalPopupConfirmBox.UserControls

Partial Class Popup_ConfirmDelete

Inherits System.Web.UI.UserControl

#Region "Private Members"

Private _ItemID As Integer

Private _ItemName As String

#End Region

#Region "Event Click"

Public Delegate Sub MyEventHandler(ByVal sender As Object, ByVal e As MyEventArgs)

Public Event OnSelectedRow As MyEventHandler

#End Region

#Region "Private Methods"

#End Region

#Region "Pulbic Methods"

Public Sub ShowPopup(ByVal ItemID As Integer, ByVal ItemName As String)

lblItemID.Text = ItemID

updatePanelPopup.Update()

ModalPopupExtender_Popup.Show()

End Sub

#End Region

#Region "Properties"

Public Property ItemID() As Integer

Get

Return _ItemID

End Get

Set(ByVal Value As Integer)

_ItemID = Value

End Set

End Property

Public Property ItemName() As String

Get

Return _ItemName

End Get

Set(ByVal Value As String)

_ItemName = Value

End Set

End Property

#End Region

#Region "Event Handles"

Private Sub cmdYes_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdYes.Click

Dim MyArgs As New MyEventArgs()

If lblItemID.Text <> "" Then

ItemID = lblItemID.Text

End If

If ItemID <> -1 Then

Dim objSQL As New SqlDataProvider

objSQL.RunSQL("Pro_Users_Delete", New ObjectPara("@UserID", ItemID))

MyArgs.Id = ItemID

MyArgs.SelectedName = ItemName

RaiseEvent OnSelectedRow(Me, MyArgs)

End If

End Sub

Private Sub cmdNo_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdNo.Click

ModalPopupExtender_Popup.Hide()

End Sub

Private Sub cmdClose_ServerClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmdClose.ServerClick

ModalPopupExtender_Popup.Hide()

End Sub

#End Region

End Class

End Namespace

Với cách viết Control riêng, bạn có thể sử dụng lại ở nhiều vị trí khác nhau trong Project bằng cách nhúng nó ở những nơi cần sử dụng.

- B12: Mở file Site.Master dưới dạng HTML và gắn thêm các css cho Project ngay phía dưới thẻ <link href="~/Styles/Site.css" rel="stylesheet" type="text/css" />
<link href="~/Styles/GridStyle.css" rel="stylesheet" type="text/css" />

<%@ Page Title="Confirmation box with using AJAX Modal Popup Extender in ASP.Net" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="ModalPopupConfirmBox._Default" %>

<%@ Register TagPrefix="ModalPopup" TagName="Delete" Src="~/UserControls/Popup_ConfirmDelete.ascx"%>

<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<h1>

Confirmation box with using AJAX Modal Popup Extender in ASP.Net

</h1>

<br />

<ModalPopup:Delete ID="ucDeleteItem" runat="server" />

<asp:UpdatePanel ID="updatePanel" runat="server" UpdateMode="Conditional">

<asp:GridView ID="grvObject" runat="server"

CssClass="GridStyle" BorderColor="#cbcbcb" BorderStyle="solid"

BorderWidth="1" AutoGenerateColumns="false" DataKeyNames="UserID" width="100%">

<asp:TemplateField HeaderText="UserName">

<asp:Label ID="lblUserName" Text='<%# Eval("UserName") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="FirstName">

<asp:Label ID="lblFirstName" Text='<%# Eval("FirstName") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="LastName">

<asp:Label ID="lblLastName" Text='<%# Eval("LastName") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Email">

<asp:Label ID="lblEmail" Text='<%# Eval("Email") %>' runat="server"></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Function">

<asp:ImageButton ID="cmdDelete" CommandName="Delete" CommandArgument='<%# Eval("UserID")%>' runat="server" ImageUrl="~/images/delete.gif" CausesValidation="False"></asp:ImageButton>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

</ContentTemplate>

</asp:UpdatePanel>

</asp:Content>

- B14: Viết Code cho file Default.aspx

Imports System.IO

Namespace ModalPopupConfirmBox

Public Class _Default

Inherits System.Web.UI.Page

#Region "Bind Data"

Private Sub BindUser()

Dim objBind As New DataTable

objBind = BindData()

If Not objBind Is Nothing Then

If objBind.Rows.Count > 0 Then

grvObject.DataSource = objBind

grvObject.DataBind()

updatePanel.Update()

End If

End Sub

Private Function BindData() As DataTable

Dim objSQL As New SqlDataProvider

Dim objBind As DataTable = objSQL.FillTable("Pro_Users_List", New ObjectPara("@IsDeleted", 0))

Return objBind

End Function

#End Region

#Region "GridView Methods"

Private Sub grvObject_RowDeleting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewDeleteEventArgs) Handles grvObject.RowDeleting

Dim ItemID As Integer = CType(grvObject.DataKeys(e.RowIndex).Value, Integer)

Dim ItemName As String = ""

If ItemID <> -1 Then

With CType(ucDeleteItem, ModalPopupConfirmBox.UserControls.Popup_ConfirmDelete)

.ItemID = ItemID

.ItemName = ItemName

.ShowPopup(ItemID, ItemName)

End With

End If

End Sub

Private Sub grvObject_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs) Handles grvObject.RowDataBound

If (e.Row.RowType = DataControlRowType.DataRow) Then

Dim cmdDelete As ImageButton = DirectCast(e.Row.FindControl("cmdDelete"), ImageButton)

If Not cmdDelete Is Nothing Then

cmdDelete.ToolTip = "Delete User"

End If

End Sub

#End Region

#Region "Popup"

Private Sub MySelDelete_OnSelectedRow(ByVal sender As Object, ByVal e As ModalPopupConfirmBox.MyEventArgs)

Dim ItemName As String = ""

With e

If e.Id <> "" Then

BindUser()

End If

End With

End Sub

#End Region

#Region "Event Handles"

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Try

AddHandler CType(ucDeleteItem, ModalPopupConfirmBox.UserControls.Popup_ConfirmDelete).OnSelectedRow, AddressOf MySelDelete_OnSelectedRow

If Page.IsPostBack = False Then

BindUser()

End If

Catch ex As Exception

End Try

End Sub

#End Region

End Class

End Namespace

Bây giờ chạy Project bạn sẽ có kết quả như ảnh phía dưới.

Chúc các bạn thành công!

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