Raiseevent user control in user control
Hi there,
I am working on a project in which a user control (BedrijfMasterDatagrid.ascx) is creating an other user control (BedrijfDatagrid.ascx).
The user control BedrijfDatagrid.ascx is correctly created, but the clicked event of the created image control (BedrijfDatagrid.ibImageButtonClicked ) is not fired. (see BedrijfDetail.aspx)
When I place BedrijfDatagrid.ascx directly on the page the event is correctly fired.Summary:
BedrijfMasterDatagrid.ascx: Datagrid with 1 row in which BedrijfDatagrid is dynamically created
BedrijfDatagrid.ascx Datagrid with 1 row including a imagebuton which clicked event should be fired
BedrijfDetail.aspx aspx webpage in which BedrijfMasterDatagrid.ascx is placed. In this page I want to use the event BedrijfDatagrid.ibImageButtonClicked, but this event is not fired!!!Does anybody have a clue what I do wrong?
Many thanx for you help!
Below the code I use:BedrijfmasterDatagrid.ascx
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="BedrijfMasterDatagrid.ascx.vb" Inherits="Bedrijf.BedrijfMasterDatagrid" %><html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<link href="../../../RSDHome.css" type="text/css" rel="stylesheet" />
</head>
<body>
<table cellspacing="0" cellpadding="0" width="100%">
<tr>
<td><asp:datagrid id="dgBedrijfMaster" AutoGenerateColumns="False" PageSize="50" AllowCustomPaging="True" ShowHeader="false" OnItemDataBound="dgBedrijfMaster_ItemDataBound" runat="server">
<HeaderStyle CssClass="datagridHeader"></HeaderStyle>
<ItemStyle CssClass="datagridRow"></ItemStyle>
<AlternatingItemStyle CssClass="datagridAlternating"></AlternatingItemStyle>
<Columns>
<asp:TemplateColumn HeaderText="KOLOM 1" HeaderStyle-Width="130" ItemStyle-VerticalAlign="Top">
<ItemTemplate>
<asp:Label id="laKolom1" runat="server" Text='<%#Container.DataItem("Kolom1")%>'>
</asp:Label>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:datagrid>
</td>
</tr>
</table>
</body>
</html>Partial Public Class BedrijfMasterDatagrid
Inherits System.Web.UI.UserControl
Public Event ibImageButtonClicked(ByVal sender As Object, ByVal e As ImageClickEventArgs)
Public Sub BEDRIJFMASTERDATAGRID_MAIN_PROC()
'initialise datatable
Dim BedrijfMasterTable As New DataTable
BedrijfMasterTable.Clear()
BedrijfMasterTable.Columns.Clear()
BedrijfMasterTable.Columns.Add("Kolom1", System.Type.GetType("System.String"))'fill 1 row for placement BedrijfDatagrid
Dim BedrijfMasterRow As DataRow = BedrijfMasterTable.NewRow
BedrijfMasterTable.Rows.Add(BedrijfMasterRow)'fill datagrid
dgBedrijfMaster.DataSource = BedrijfMasterTable
dgBedrijfMaster.DataBind()End Sub
Public Sub dgBedrijfMaster_ItemDataBound(ByVal sender As System.Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs)
If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
'creeer bedrijf en plaats binnen datagrid
e.Item.Cells(0).Controls.Add(setBedrijfDatagrid())End If
End Sub
Private Function setBedrijfDatagrid() As BedrijfDatagrid
'fill machineindeling machine
Dim BedrijfDatagrid As BedrijfDatagrid = LoadControl("~/User controls/BedrijfDatagrid.ascx")
AddHandler BedrijfDatagrid.ibImageButtonClicked, AddressOf ibImageButton_ClickCall BedrijfDatagrid.BEDRIJFDATAGRID_MAIN_PROC()
Return BedrijfDatagrid
End Function
Public Sub ibImageButton_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs)
RaiseEvent ibImageButtonClicked(sender, e)
End Sub
End Class
BedrijfDatagrid.ascx
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="BedrijfDatagrid.ascx.vb" Inherits="Bedrijf.BedrijfDatagrid" %><html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<link href="../../../RSDHome.css" type="text/css" rel="stylesheet" />
</head>
<body>
<table cellspacing="0" cellpadding="0" width="100%">
<tr>
<td><asp:datagrid id="dgBedrijf" AutoGenerateColumns="False" PageSize="50" AllowCustomPaging="True" OnItemDataBound="dgBedrijf_ItemDataBound" runat="server">
<HeaderStyle CssClass="datagridHeader"></HeaderStyle>
<ItemStyle CssClass="datagridRow"></ItemStyle>
<AlternatingItemStyle CssClass="datagridAlternating"></AlternatingItemStyle>
<Columns>
<asp:TemplateColumn HeaderText="MEDEWERKER NAAM" HeaderStyle-Width="130">
<ItemTemplate>
<!--Medewerker naam -->
<asp:Label id="laMedewerkerNaam" runat="server" Text='<%#Container.DataItem("Medewerker naam")%>'>
</asp:Label>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<!--Save/delete (2) -->
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:datagrid>
</td>
</tr>
</table>
</body>
</html>Partial Public Class BedrijfDatagrid
Inherits System.Web.UI.UserControl
Public Event ibImageButtonClicked(ByVal sender As Object, ByVal e As ImageClickEventArgs)
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
End Sub
Public Sub BEDRIJFDATAGRID_MAIN_PROC()
'initialise datatable
Dim BedrijfTable As New DataTable
BedrijfTable.Clear()
BedrijfTable.Columns.Clear()
BedrijfTable.Columns.Add("Medewerker naam", System.Type.GetType("System.String"))'fill row
Dim BedrijfRow As DataRow = BedrijfTable.NewRow
BedrijfRow.Item("Medewerker naam") = "TEST"
BedrijfTable.Rows.Add(BedrijfRow)'fill datagrid
dgBedrijf.DataSource = BedrijfTable
dgBedrijf.DataBind()End Sub
Public Sub dgBedrijf_ItemDataBound(ByVal sender As System.Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs)
'add imagebutton delete
If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
e.Item.Cells(1).Controls.Add(setImageButton("DELETE"))
End IfEnd Sub
Private Function setImageButton(ByVal ACTIE As String) As ImageButton
Dim ibImageButton As New ImageButton
ibImageButton.ImageUrl = "~\Images\Delete.gif"
ibImageButton.ToolTip = "Verwijder medewerker"
ibImageButton.CommandName = "Delete"ibImageButton.ID = "ibDelete"
ibImageButton.CommandArgument = ACTIE
AddHandler ibImageButton.Click, AddressOf ibImageButton_ClickReturn ibImageButton
End Function
Public Sub ibImageButton_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs)
RaiseEvent ibImageButtonClicked(sender, e)
End Sub
End Class
BedrijfDetail.aspx
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="BedrijfDetail.aspx.vb" Inherits="Bedrijf.BedrijfDetail" %><%@ Register TagPrefix="uc1" TagName="BedrijfMasterDatagrid" Src="User controls/BedrijfMasterDatagrid.ascx" %>
<!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></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<uc1:BedrijfMasterDatagrid id="BedrijfMasterDatagrid" runat="server"></uc1:BedrijfMasterDatagrid>
</div>
</form>
</body>
</html>Partial Public Class BedrijfDetail
Inherits System.Web.UI.Page
Protected WithEvents BedrijfMasterDatagrid As Global.Bedrijf.BedrijfMasterDatagrid
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Call BedrijfMasterDatagrid.BEDRIJFMASTERDATAGRID_MAIN_PROC()
End Sub
Private Sub ibImageButtonClicked_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles BedrijfMasterDatagrid.ibImageButtonClicked
'THIS EVENT IS NOT FIRED
End Sub
End Class
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minds999 
asp.net.custom-server-controls
3498 articles. 
0 followers.
1 Replies
817 Views
Hi,
Based on my knowledge, if you want to fire a child control event, you need to know the event bubbling mechenism in user control, the event fired from child control can continue to pass through layers, starting at the bottom (the user control) and perhaps reaching the top level.
For more details on how to pass your child control events to top layer, see:
http://www.odetocode.com/code/94.aspx
Thanks.
Michael Jin.
Microsoft Online Community Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help.
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Nai 
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