A
Avon
Hi friends,
I am very sorry for my not perfect English.
I have one question, I am using David Bauer's DynamicControlsPlaceholder to
dinamically generate controls and I am tryig to generate MultiViev, at first
it working, when I click btn1 I set SetActiveView to viev1 and it's working
OK, but when after that I click btn2 and try to set SetActiveView to 2, I
receive this error:
ActiveViewIndex is being set to '1'. It must be smaller than the current
number of View controls '0'. For dynamically added views, make sure they are
added before or in Page_PreInit event.
Parameter name: value
Please help me to understand this error
This is my code
Aspx file:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="test.aspx.vb"
Inherits="test" title="Untitled Page" %>
<%@ Register Assembly="DBauer.Web.UI.WebControls.DynamicControlsPlaceholder"
Namespace="DBauer.Web.UI.WebControls"
TagPrefix="DBWC" %>
<html >
<head id="Head1" runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="sad" runat=server>
<dbwc:dynamiccontrolsplaceholder id="DynamicControlsPlaceholder1"
runat="server"
controlswithoutids="Persist"></dbwc:dynamiccontrolsplaceholder>
<br />
<br />
<asp:Button ID="btn1" runat="server" Text="first click here" />
<asp:Button ID="btn2" runat="server" Text="then click here" />
</form>
</body>
</html>
Vb file:
Partial Class test
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
Dim m As New MultiView
DynamicControlsPlaceholder1.Controls.Add(m)
Dim i As Integer
Dim v As View
For i = 0 To 5
v = New View
m.Views.Add(v)
v.ID = "MyView" & i
Dim txt As New TextBox
v.Controls.Add(txt)
txt.ID = "txt" & i
txt.Text = "My text " & i
Next
End If
End Sub
Protected Sub btn1_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btn1.Click
DirectCast(DynamicControlsPlaceholder1.Controls(0),
MultiView).SetActiveView(DirectCast(DynamicControlsPlaceholder1.Controls(0),
MultiView).Views(1))
End Sub
Protected Sub btn2_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btn2.Click
DirectCast(DynamicControlsPlaceholder1.Controls(0),
MultiView).SetActiveView(DirectCast(DynamicControlsPlaceholder1.Controls(0),
MultiView).Views(2))
End Sub
End Class
I am very sorry for my not perfect English.
I have one question, I am using David Bauer's DynamicControlsPlaceholder to
dinamically generate controls and I am tryig to generate MultiViev, at first
it working, when I click btn1 I set SetActiveView to viev1 and it's working
OK, but when after that I click btn2 and try to set SetActiveView to 2, I
receive this error:
ActiveViewIndex is being set to '1'. It must be smaller than the current
number of View controls '0'. For dynamically added views, make sure they are
added before or in Page_PreInit event.
Parameter name: value
Please help me to understand this error
This is my code
Aspx file:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="test.aspx.vb"
Inherits="test" title="Untitled Page" %>
<%@ Register Assembly="DBauer.Web.UI.WebControls.DynamicControlsPlaceholder"
Namespace="DBauer.Web.UI.WebControls"
TagPrefix="DBWC" %>
<html >
<head id="Head1" runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="sad" runat=server>
<dbwc:dynamiccontrolsplaceholder id="DynamicControlsPlaceholder1"
runat="server"
controlswithoutids="Persist"></dbwc:dynamiccontrolsplaceholder>
<br />
<br />
<asp:Button ID="btn1" runat="server" Text="first click here" />
<asp:Button ID="btn2" runat="server" Text="then click here" />
</form>
</body>
</html>
Vb file:
Partial Class test
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
Dim m As New MultiView
DynamicControlsPlaceholder1.Controls.Add(m)
Dim i As Integer
Dim v As View
For i = 0 To 5
v = New View
m.Views.Add(v)
v.ID = "MyView" & i
Dim txt As New TextBox
v.Controls.Add(txt)
txt.ID = "txt" & i
txt.Text = "My text " & i
Next
End If
End Sub
Protected Sub btn1_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btn1.Click
DirectCast(DynamicControlsPlaceholder1.Controls(0),
MultiView).SetActiveView(DirectCast(DynamicControlsPlaceholder1.Controls(0),
MultiView).Views(1))
End Sub
Protected Sub btn2_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles btn2.Click
DirectCast(DynamicControlsPlaceholder1.Controls(0),
MultiView).SetActiveView(DirectCast(DynamicControlsPlaceholder1.Controls(0),
MultiView).Views(2))
End Sub
End Class