(Showing Popup document on clicking Icon in Gridview) – Bài viết dưới đây sẽ hướng dẫn các bạn cách xây dựng hiển thị biểu tượng với những công việc có file đính kèm và khi kích vào tên công việc hoặc biểu tượng, 1 Popup sẽ hiển thị toàn bộ danh sách tài liệu thuộc công việc đã click.

Nghe những bài hát đỉnh nhất về Thấy cô giáo - Nghe trên Youtube

- B1: Tạo CSDL Demo_Tasks trong SQL Server

- B2: Tạo Bảng Tasks có cấu trúc phía dưới

STT	Tên trường	Kiểu trường	Ghi chú
1	TaskID	Int	Trường tự tăng
2	TaskName	nvarchar(250)
3	StartDate	datetime
4	EndDate	datetime
5	IsFinish	bit
6	CreatedDate	datetime

- B3: Nhập dữ liệu cho bảng Tasks

- B4: Tạo Bảng Documents có cấu trúc phía dưới

STT	Tên trường	Kiểu trường	Ghi chú
1	DocumentID	Int	Trường tự tăng
2	TaskID	Int
3	DocumentName	nvarchar(250)
4	FileName	nvarchar(250)
5	FileSize	nvarchar(50)
6	Description	nvarchar(250)
7	CreatedDate	datetime
8	ModifiedDate	datetime

- B5: Nhập dữ liệu cho bảng Documents

- B6: Tạo stored procedure trong SQL Server

USE[Demo_Documents]

CREATE PROCEDURE [dbo].[Pro_Tasks_List]

@Keyword nvarchar(250),

@SortField nvarchar(50),

@SortType nvarchar(10)

declare@strSQL nvarchar(1000)

declare @strWhere nvarchar(500)

declare @strOrder nvarchar (50)

set @strSQL= 'Select *,(select count(*) from Documents where TaskID = Tasks.TaskID) as NumberOfDocument from Tasks'

set @strWhere =' Where 1=1 '

if @Keyword<>''

set @strWhere= @strWhere +' And (TaskName like N''%'+ @Keyword+'%'')'

if @SortField='CreatedDate'

Begin

set @strOrder =' Order by CreatedDate'

End

Else

Begin

set @strOrder =' Order by TaskName'

End

set @strSQL=@strSQL+@strWhere+@strOrder+ ' '+ @SortType

print @strSQL

exec sp_executesql @strSQL

CREATE PROCEDURE [dbo].[Pro_Documents_List]

@Keyword nvarchar(250),

@SortField nvarchar(50),

@SortType nvarchar(10)

declare@strSQL nvarchar(1000)

declare @strWhere nvarchar(500)

declare @strOrder nvarchar (50)

set @strSQL= 'Select * from Documents'

set @strWhere =' Where 1=1 '

if @Keyword<>''

set @strWhere= @strWhere +' And (DocumentName like N''%' +@Keyword+'%''

Or FileName like N''%' +@Keyword+'%'')'

if @SortField='CreatedDate'

Begin

set @strOrder =' Order by CreatedDate'

End

Else

Begin

set @strOrder =' Order by DocumentName'

End

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

print @strSQL

exec sp_executesql @strSQL

CREATE PROCEDURE [dbo].[Pro_Documents_Get]

@DocumentID int

SELECT * FROM Documents

WHERE

DocumentID = @DocumentID

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

- B7: 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 OpenPopupOnClickIconInGridview

Public Class SqlDataProvider

#Region "Membres Prives"

Shared _IsError As Boolean = False

Private _connectionString AsString

#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() AsString

Get

Return _connectionString

End Get

End Property

#End Region

#Region "Functions"

Public FunctionFillTable(ByVal ProcName As String, ByVal ParamArrayPara() As ObjectPara) As DataTable

Try

Dim tb AsNew DataTable

Dim adap AsNew SqlDataAdapter(ProcName, _connectionString)

adap.SelectCommand.CommandType = CommandType.StoredProcedure

If NotPara Is NothingThen

For Eachp As ObjectParaIn 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 FunctionGetRow(ByVal ProcName AsString, ByVal ParamArray Para() As ObjectPara) As DataRow

Try

Dim tb AsNew DataTable

Dim adap AsNew SqlDataAdapter(ProcName, _connectionString)

adap.SelectCommand.CommandType = CommandType.StoredProcedure

For Eachp As ObjectParaIn Para

adap.SelectCommand.Parameters.Add(New SqlParameter(p.Name, p.Value))

adap.Fill(tb)

If tb.Rows.Count Then

Return tb.Rows(0)

End If

Catch ex As Exception

Return Nothing

End Try

Return Nothing

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 PropertyName() As String

Get

Return _name

End Get

Set(ByVal value As String)

_name = value

End Set

End Property

Public PropertyValue() 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

- B8: Download file attach.gif vào thư mục Images Project

- B9: Tạo thư mục UserControls, tạo file Popup_Documents.ascx trong thư mục vừa tạo

- B10: Mở file Popup_Documents. ascx dạng HTML và nhập mã HTML

<%@ ControlLanguage="vb"AutoEventWireup="false"CodeBehind="Popup_Documents.ascx.vb"Inherits="OpenPopupOnClickIconInGridview.UserControls.Popup_Documents"%>

<%@ RegisterTagPrefix="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:ModalPopupExtenderID="ModalPopupExtender_Popup"runat="server"TargetControlID="cmdShowPopup"X="550"Y="180"

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

<divclass="modal"style="width:850px;">

<divclass="modal-dialog">

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

</h4>

</div>

<tr>

<td>

<asp:label id="lblItemID"runat="server"Visible="false"></asp:label>

<asp:GridView ID="grvObject"runat="server"AllowPaging="true"PageSize="12"

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

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

<AlternatingRowStyleCssClass="GridStyle_AltRowStyle"/>

<HeaderStyleCssClass="GridStyle_HeaderStyle"/>

<RowStyleCssClass="GridStyle_RowStyle"/>

<pagerstylecssclass="GridStyle_pagination"/>

<asp:TemplateField HeaderText = "Number">

<asp:Label ID="lblRowNumber"Text='<%# Container.DataItemIndex + 1 %>' runat="server"/>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="DocumentName">

<ItemStylewidth="18%"/>

<asp:LinkButton id="cmdDownload" runat="server" CommandName="Download" CommandArgument='<%# Eval("DocumentID") %>' CssClass="Title"text='<%# Eval("DocumentName") %>'></asp:LinkButton>

</ItemTemplate>

</asp:TemplateField>

<asp:BoundField ItemStyle-Width="15%"DataField="FileName"HeaderText="FileName"/>

<asp:BoundField ItemStyle-Width="8%"DataField="FileSize"HeaderText="FileSize"/>

<asp:BoundField ItemStyle-Width="12%" DataField="CreatedDate" HeaderText="CreatedDate" />

</Columns>

</asp:GridView>

</td>

</tr>

</table>

</div>

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

</asp:LinkButton>

</div>

</ContentTemplate>

</asp:UpdatePanel>

</asp:Panel>

- B11: Viết Code cho file Popup_Documents.ascx

Imports System.IO

Namespace OpenPopupOnClickIconInGridview.UserControls

Partial Class Popup_Documents

Inherits System.Web.UI.UserControl

#Region "Private Members"

Private _ItemID As Integer

Private filePath As String = ""

#End Region

#Region "Private Methods"

Private FunctionGetFileName(ByVal ItemID As Integer) As String

Dim objSQL As New SqlDataProvider

Dim FileName As String = ""

Dim objInfo As DataRow = objSQL.GetRow("Pro_Documents_Get", New ObjectPara("@DocumentID", ItemID))

If Not objInfo Is Nothing Then

If NotIsDBNull(objInfo("FileName")) Then

FileName = objInfo("FileName")

End If

Return FileName

End Function

Private SubDownloadFile(ByVal filepath As String)

If filepath <> ""Then

Dim file AsNew System.IO.FileInfo(filepath)

If file.Exists Then

Response.Clear()

Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name)

Response.AddHeader("Content-Length", file.Length.ToString())

Response.ContentType = "application/octet-stream"

Response.WriteFile(file.FullName)

Response.End()

Else

Response.Write("This file does not exist.")

End If

Else

Response.Write("Please provide a file to download.")

End If

End Sub

#End Region

#Region "Pulbic Methods"

Public Sub ShowPopup(ByVal ItemID As Integer)

lblItemID.Text = ItemID

BindDocument()

updatePanelPopup.Update()

ModalPopupExtender_Popup.Show()

End Sub

#End Region

#Region "Bind Data"

Private SubBindDocument()

Dim objBind As New DataTable

objBind = BindData()

If Not objBind Is Nothing Then

If objBind.Rows.Count > 0 Then

grvObject.DataSource = objBind

grvObject.DataBind()

grvObject.Visible = True

lblHeader.Text = "Documents ("& objBind.Rows.Count & ")"

Else

grvObject.Visible = False

End If

updatePanelPopup.Update()

End If

End Sub

Private Function BindData() AsDataTable

Dim objSQL As New SqlDataProvider

If lblItemID.Text <> ""Then

ItemID = lblItemID.Text

End If

Dim objBind As DataTable = objSQL.FillTable("Pro_Documents_List", New ObjectPara("@Keyword", ""), _

New ObjectPara("@TaskID", ItemID), _

New ObjectPara("@SortField", "CreatedDate"), _

New ObjectPara("@SortType", "DESC"))

Return objBind

End Function

#End Region

#Region "GridView Methods"

Private Sub grvObject_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles grvObject.RowCommand

Dim ItemID As Integer = Integer.Parse(e.CommandArgument)

Dim FileName As String = ""

Select Casee.CommandName.ToLower

Case "download"

FileName = GetFileName(ItemID)

filePath = MapPath("~/Documents/") & FileName

If File.Exists(filePath) Then

DownloadFile(filePath)

End If

End Select

End Sub

Private SubgrvObject_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs) HandlesgrvObject.RowDataBound

Ife.Row.RowType = DataControlRowType.DataRow Then

Dim cmdDownload AsLinkButton = CType(e.Row.FindControl("cmdDownload"), LinkButton)

If cmdDownload IsNotNothing Then

cmdDownload.ToolTip = "Click to Download"

ScriptManager.GetCurrent(Page).RegisterPostBackControl(cmdDownload)

End If

End Sub

Private SubgrvObject_PageIndexChanging(ByVal sender As Object, ByVal e AsSystem.Web.UI.WebControls.GridViewPageEventArgs) Handles grvObject.PageIndexChanging

grvObject.PageIndex = e.NewPageIndex

BindDocument()

ModalPopupExtender_Popup.Show()

End Sub

#End Region

#Region "Properties"

Public PropertyItemID() As Integer

Get

Return _ItemID

End Get

Set(ByVal Value As Integer)

_ItemID = Value

End Set

End Property

#End Region

#Region "Event Handles"

Private SubcmdNo_Click(ByVal sender As Object, ByVal e As System.EventArgs) HandlescmdCancel.Click

ModalPopupExtender_Popup.Hide()

End Sub

Private SubcmdClose_ServerClick(ByVal sender As Object, ByVal e As System.EventArgs) HandlescmdClose.ServerClick

ModalPopupExtender_Popup.Hide()

End Sub

#End Region

End Class

End Namespace

- B12: Mở file Default.aspx dưới dạng HTML và nhập mã HTML

<%@ PageTitle="To open a popup on clicking Icon in Gridview" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false" EnableEventValidation= "false" CodeBehind="Default.aspx.vb"Inherits="OpenPopupOnClickIconInGridview._Default"%>

<%@ RegisterTagPrefix="ModalPopup"TagName="Document"Src="~/UserControls/Popup_Documents.ascx"%>

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

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

</asp:ScriptManager>

<ModalPopup:Document ID="ucDocument"runat="server"/>

<h3>

To open a popup on clicking Icon in Gridview

</h3>

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

<tr>

<td>

</td>

<tdalign="right">

<asp:Label ID="plKeyword" runat="server" Text="Keyword"></asp:Label>

<asp:TextBox ID="txtSearch" CssClass="form-control" ToolTip="Enter Keyword" runat="server" width="200px"></asp:TextBox>

<asp:ImageButton ID="cmdQuickSearch" runat="server" causesvalidation="false" imageurl="~/images/icon_search.gif"></asp:ImageButton>

</td>

</tr>

<trid="trMessage"runat="server"visible="false">

<tdcolspan="2">

<asp:Label ID="lblMessage" runat="server" Text="No Data"></asp:Label>

</td>

</tr>

<tr>

<tdcolspan="2">

<asp:GridView ID="grvObject" runat="server" AllowPaging="true" PageSize="12"

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

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

<AlternatingRowStyleCssClass="GridStyle_AltRowStyle"/>

<asp:TemplateField HeaderText = "Number">

<asp:Label ID="lblRowNumber"Text='<%# Container.DataItemIndex + 1 %>' runat="server"/>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="TaskName">

<asp:LinkButton id="cmdDownload" runat="server" CommandName="Download" CommandArgument='<%# Eval("TaskID") %>' text='<%# Eval("TaskName") %>'></asp:LinkButton>

<asp:Label ID="lblTask"runat="server"text='<%# Eval("TaskName") %>'>

</asp:Label>

<asp:ImageButton ID="cmdIconTask"runat="server"CommandName="Download"CommandArgument='<%# Eval("TaskID") %>' />

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="StartDate">

<asp:Label ID="lblStartDate"runat="server">

<%# FormatDate(Eval("StartDate"))%>

</asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="EndDate">

<asp:Label ID="lblEndDate"runat="server">

<%# FormatDate(Eval("EndDate"))%>

</asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="Finish">

<asp:CheckBox id="chkFinish"runat="server"Checked='<%# FormatBoolean(Eval("IsFinish")) %>'></asp:CheckBox>

</ItemTemplate>

</asp:TemplateField>

<asp:BoundField ItemStyle-Width="12%"DataField="CreatedDate"HeaderText="CreatedDate"/>

</Columns>

</asp:GridView>

</td>

</tr>

</table>

</ContentTemplate>

</asp:UpdatePanel>

</asp:Content>

- B13: Viết Code cho file Default.aspx

'Visit http://thuthuatlaptrinh.blogspot.com for more ASP.NET Tutorials

Namespace OpenPopupOnClickIconInGridview

Public Class _Default

Inherits System.Web.UI.Page

#Region "Private Methods"

Public FunctionFormatBoolean(ByVal KeyValue As Boolean) As String

Dim sKeyValue As Boolean

If KeyValue Then

sKeyValue = True

Else

sKeyValue = False

End If

Return sKeyValue

End Function

Public FunctionFormatDate(ByVal KeyValue As Object) As String

Dim sKeyValue As String = ""

If Not KeyValue Is System.DBNull.Value Then

sKeyValue = KeyValue.ToShortDateString

Else

sKeyValue = "-"

End If

Return sKeyValue

End Function

#End Region

#Region "Bind Data"

Private SubBindTask()

Dim objBind As New DataTable

objBind = BindData()

If Not objBind Is Nothing Then

If objBind.Rows.Count > 0 Then

grvObject.DataSource = objBind

grvObject.DataBind()

trMessage.Visible = False

grvObject.Visible = True

Else

trMessage.Visible = True

grvObject.Visible = False

End If

updatePanel.Update()

End If

End Sub

Private FunctionBindData() As DataTable

Dim objSQL As New SqlDataProvider

Dim objBind As DataTable = objSQL.FillTable("Pro_Tasks_List", New ObjectPara("@Keyword", txtSearch.Text.Trim), _

New ObjectPara("@SortField", "CreatedDate"), _

New ObjectPara("@SortType", "DESC"))

Return objBind

End Function

#End Region

#Region "GridView Methods"

Private SubgrvObject_RowCommand(ByVal sender As Object, ByVal e AsSystem.Web.UI.WebControls.GridViewCommandEventArgs) Handles grvObject.RowCommand

Dim ItemID As Integer = Integer.Parse(e.CommandArgument)

Dim FileName As String = ""

Select Casee.CommandName.ToLower

Case "download"

With CType(ucDocument, OpenPopupOnClickIconInGridview.UserControls.Popup_Documents)

.ItemID = ItemID

.ShowPopup(ItemID)

End With

End Select

End Sub

Private SubgrvObject_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs) HandlesgrvObject.RowDataBound

If e.Row.RowType = DataControlRowType.DataRow Then

Dim NumberOfDocument As Integer = DataBinder.Eval(e.Row.DataItem, "NumberOfDocument")

Dim cmdDownload AsLinkButton = CType(e.Row.FindControl("cmdDownload"), LinkButton)

Dim cmdIconTask AsImageButton = CType(e.Row.FindControl("cmdIconTask"), ImageButton)

Dim lblTask AsLabel = CType(e.Row.FindControl("lblTask"), Label)

If NotcmdDownload Is NothingThen

If NumberOfDocument > 0 Then

cmdDownload.ToolTip = "Click to Download"

cmdDownload.Visible = True

cmdIconTask.Visible = True

lblTask.Visible = False

cmdIconTask.ImageUrl = Page.ResolveUrl("~/Images/Attach.gif")

Else

cmdDownload.Visible = False

lblTask.Visible = True

cmdIconTask.Visible = False

End If

End Sub

Private SubgrvObject_PageIndexChanging(ByVal sender As Object, ByVal e AsSystem.Web.UI.WebControls.GridViewPageEventArgs) Handles grvObject.PageIndexChanging

grvObject.PageIndex = e.NewPageIndex

BindTask()

End Sub

#End Region

#Region "Event Handles"

Protected SubPage_Load(ByVal sender AsObject, ByVal e As System.EventArgs) Handles Me.Load

Try

If Page.IsPostBack = False Then

'Default Submit Button

Page.Form.DefaultButton = cmdQuickSearch.UniqueID

BindTask()

End If

Catch ex As Exception

End Try

End Sub

Private SubcmdQuickSearch_Click(ByVal sender As Object, ByVal e As System.EventArgs) HandlescmdQuickSearch.Click

BindTask()

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!

Quang Bình

Hiển thị danh sách tài liệu khi kích vào Icon trên Gridview

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