accessing the readonly properties of a listmenu with a user control?

[Moe Sizlak]

Hi There,

I am trying to use the to obtain the information from 2 listmenus, if the
user makes a selection the page is submitted and then based on the value
selected is transfererd to another page. This works ok on it's own but I
can't seem to access the actual value of the control or the option value
( <option value="6">...NT ...</option>)
..
Any ideas ppl?

Moe

!--- function returns these values to screen

_ctl1_lstStates
_ctl1_lstCatego rie
Public ReadOnly Property SelectedCategor iesID As String
Get
return lstCategorie.Cl ientID
End Get
End Property

Public ReadOnly Property SelectedStatesI D As String
Get
return lstStates.Clien tID
End Get
End Property
"redirect functions

'strSelectedCat egories = lstCategorie.Cl ientID.Selected Item.Value
'strSelectedSta tes = lstStates.Clien tID.SelectedIte m.Value

If strSelectedStat es <> "0" AND strSelectedCate gories ="0" Then
strFormID = strSelectedStat es
SendUserToState (strFormID)
Elseif strSelectedStat es = "0" AND strSelectedCate gories <> "0" Then
'response.write ("categories ")
'response.end
strFormID = strSelectedCate gories
SendUserToCateg orie(strFormID)
End If

End If
End Sub

Public Function SendUserToState (ByVal strFormID as Integer)
Select Case strFormID
Case 1,2,3,4,5,6,7,8 ,9
response.redire ct("browselisti ngsbystate.aspx ?StateID=" & strFormID)
Case Else
'do jack all
End Select
End Function

Public Function SendUserToCateg orie(ByVal strFormID as Integer)
Select Case strFormID
Case 6,10,8,7,11,13, 9,12
response.redire ct("browselisti ngs.aspx?Catego ryID=" & strFormID)
Case Else
'do jack all
End Select
End Function

<td height="20" width="11%">
<div align="right">< font face="Verdana, Arial, Helvetica, sans-serif"
size="1" color="#FFFFFF" >Browse
:</font></div>
</td>
<td height="20" width="14%">

<div align="left">
<asp:listbox id="lstCategori e" runat="server" Rows="1"
AutoPostBack="t rue"
DataTextField=" CategoryDesc" DataValueField= "CategoryID " />

</div>

</td>
<td height="20" width="11%">
<div align="right">< font face="Verdana, Arial, Helvetica, sans-serif"
size="1" color="#FFFFFF" >Browse
:</font></div>
</td>
<td height="20" width="14%">

<div align="left">
<asp:listbox id="lstStates" runat="server" Rows="1"
AutoPostBack="t rue"
DataTextField=" Location" DataValueField= "LocationID " />

[Natty Gur]

Hi,

If I get you right you need to use ListBox SelectedItem.Va lue to get
current user select value.

Public ReadOnly Property SelectedCategor iesID As String
Get
return lstCategorie.Se lectedItem.Valu e
End Get
End Property

HTH

Natty Gur[MVP]

blog : http://weblogs.asp.net/ngur
Mobile: [phone]
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[Moe Sizlak]

Hi Natty,

The only problem is I get the error "Object reference not set to an instance
of an object. " if I change the code to:

How can I get around this error?

Moe

Public ReadOnly Property SelectedCategor iesID As String
Get
return lstCategorie.Se lectedItem.Valu e
End Get
End Property
Public ReadOnly Property SelectedStatesI D As String
Get
return lstStates.Selec tedItem.Value
End Get
End Property
"Natty Gur" <na***@dao2com. com> wrote in message
news:eJ******** ******@TK2MSFTN GP10.phx.gbl...

Hi,

If I get you right you need to use ListBox SelectedItem.Va lue to get
current user select value.

Public ReadOnly Property SelectedCategor iesID As String
Get
return lstCategorie.Se lectedItem.Valu e
End Get
End Property

HTH

Natty Gur[MVP]

blog : http://weblogs.asp.net/ngur
Mobile: [phone]
*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!

[Natty Gur]

Hi,

so the user didn't select any item. select if SelectedItem is null
before using it.

Natty Gur[MVP]

blog : http://weblogs.asp.net/ngur
Mobile: [phone]
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[Moe Sizlak]

Hi Natty,

The user did select an item, as soon as the form is submitted the error
occurs.

Sean
"Natty Gur" <na***@dao2com. com> wrote in message
news:uC******** ******@TK2MSFTN GP11.phx.gbl...

Hi,

so the user didn't select any item. select if SelectedItem is null
before using it.

Natty Gur[MVP]

blog : http://weblogs.asp.net/ngur
Mobile: [phone]
*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!