T
thomas
Hello All,
Im trying to build a simple datascource driven control, but im having
problems, maybe someone here can set me off in the right direction.
I would like to build a control that displays linkbuttons based on captions
in an array as datasource.
I have 2 problems with the control:
1. (For testpurposes) displaying 10 controls and capturing events.
Example (my control class Implements INamingContainer)
Protected Overrides Sub CreateChildControls()
For i As Integer = 1 To 10
LinkButton = New LinkButton
LinkButton.Text = "link " + CStr(i)
Controls.Add(LinkButton)
Next
End Sub
Private Sub LinkButton_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles LinkButton.Click
RaiseEvent Click(sender, e)
End Sub
Event Click(ByVal sender As Object, ByVal e As EventArgs)
My linkbutons are shown but the event for the clicked button is lost in
postback ?? I tried with 3 controls and it worked ????
2. Setting source for my control And displaying liknbuttons based on strings
in an array.
I have implemented a datasource property in my control with the type
string()
In my Webform1.aspx test page i set the data source
Dim MyArray As String() = {"test1", "test2", "test3", "test4", "test5"}
MyControl..DataSource = MyArray
The first time my control loads the linkbutton are displayed with the right
captions, when i click a linkbutton and the page postback the
CreateChildControls is called and an exeption is thrown because the
datacource is not set. I have tried different solutions but no luck. What am
i missing in the event model for composite controls?? Am i using the wrong
strategy should i base my composite control on a repeater control or ???
Protected Overrides Sub CreateChildControls()
For i As Integer = 0 To _DataSource.Length - 1
LinkButton = New LinkButton
LinkButton.Text = "link " + CStr(i)
Controls.Add(LinkButton)
Next i
end sub
Im trying to build a simple datascource driven control, but im having
problems, maybe someone here can set me off in the right direction.
I would like to build a control that displays linkbuttons based on captions
in an array as datasource.
I have 2 problems with the control:
1. (For testpurposes) displaying 10 controls and capturing events.
Example (my control class Implements INamingContainer)
Protected Overrides Sub CreateChildControls()
For i As Integer = 1 To 10
LinkButton = New LinkButton
LinkButton.Text = "link " + CStr(i)
Controls.Add(LinkButton)
Next
End Sub
Private Sub LinkButton_Click(ByVal sender As Object, ByVal e As
System.EventArgs) Handles LinkButton.Click
RaiseEvent Click(sender, e)
End Sub
Event Click(ByVal sender As Object, ByVal e As EventArgs)
My linkbutons are shown but the event for the clicked button is lost in
postback ?? I tried with 3 controls and it worked ????
2. Setting source for my control And displaying liknbuttons based on strings
in an array.
I have implemented a datasource property in my control with the type
string()
In my Webform1.aspx test page i set the data source
Dim MyArray As String() = {"test1", "test2", "test3", "test4", "test5"}
MyControl..DataSource = MyArray
The first time my control loads the linkbutton are displayed with the right
captions, when i click a linkbutton and the page postback the
CreateChildControls is called and an exeption is thrown because the
datacource is not set. I have tried different solutions but no luck. What am
i missing in the event model for composite controls?? Am i using the wrong
strategy should i base my composite control on a repeater control or ???
Protected Overrides Sub CreateChildControls()
For i As Integer = 0 To _DataSource.Length - 1
LinkButton = New LinkButton
LinkButton.Text = "link " + CStr(i)
Controls.Add(LinkButton)
Next i
end sub