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plurals

PO
primarykey
Id
6518617
data
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0
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0
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1
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CreationDate
2011-06-29T09:42:15.903
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2011-06-29T09:42:15.903
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0
OwnerUserId
284240
ParentId
6518502
PostTypeId
2
Score
2
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LastEditorDisplayName
text
Body
You could use an <a href="http://msdn.microsoft.com/en-us/library/9eee01cx%28v=vs.71%29.aspx" rel="nofollow">ASP.NET-CustomValidator</a> for this: Providing a client-validation function: <pre><code>function validateSelectionCount(sender, args){ var listbox = document.getElementById('ListBox1'); args.IsValid = validateListBoxSelectionCount(listbox, 3, 3); } function validateListBoxSelectionCount(listbox, minSelected, maxSelected){ var selected=0; if(listbox != null){ for (var i=0; i<listbox.length; i++){ if(listbox.options[i].selected){ selected++; if(selected>maxSelected)break; } } } return (selected >= minSelected && selected <= maxSelected); } </code></pre> providing a server-validate function: <pre><code>Protected Sub validateSelectionCount(ByVal source As Object, ByVal args As ServerValidateEventArgs) Dim count As Int32 = 0 Dim maxCount As Int32 = 3 Dim minCount As Int32 = 3 Dim lb As ListBox = DirectCast(Me.FindControl(DirectCast(source, CustomValidator).ControlToValidate), ListBox) For Each item As ListItem In lb.Items If item.Selected Then count += 1 If count > maxCount Then Exit For Next args.IsValid = (count >= minCount AndAlso count <= maxCount) End Sub </code></pre> and the aspx part: <pre><code><asp:ListBox ID="ListBox1" CausesValidation="true" ValidationGroup="VG_SAVE" runat="server" CssClass="content" SelectionMode="Multiple"></asp:ListBox> <asp:CustomValidator ID="CV_SelectionCount" runat="server" ValidateEmptyText="true" ClientValidationFunction="validateSelectionCount" OnServerValidate="validateSelectionCount" ControlToValidate="ListBox1" Display="None" EnableClientScript="true" ErrorMessage="Select 3 items" Style="visibility: hidden" ValidationGroup="VG_SAVE">*</asp:CustomValidator> </code></pre>
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1. This table or related slice is empty.
PostParentId
1. POmultiple selection from listbox in c#
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1. PTAnswer
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1. This table or related slice is empty.
UserOwnerUserId
1. USTim Schmelter
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1. VO
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 VTUpMod
2. VO
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CommentsPostId
1. COim currently doing it on a web form i can implemant this too? c#
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 USNurulhuda Rosly

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Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.