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Subject:
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How to restrict the maximum number of possible sel
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Posted By:
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lily611
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Post Date:
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11/18/2004 5:15:40 AM
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Hi,
How to restrict the maximum number of possible selections in a multiple list box or drop-down list in .Net.
In my application i have to restrict the maximum selection must not be greater than 3 from the dropdown list.
Regards
Lily
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Reply By:
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katsarosj
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Reply Date:
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11/18/2004 9:12:51 AM
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Is this a Windows form or a Web form? If it is a Windows, it is easy:
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If ListBox1.SelectedItems.Count > 3 Then
MessageBox.Show("Too many selections.")
Else
MessageBox.Show("Your selection count is fine.")
End If
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I could be wrong, but I don't believe there is a SelectedItems Count property in a web form, so you could do something like this:
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Dim intCntr As Int32 = 0
Dim itm As ListItem
For Each itm In ListBox1.Items
If itm.Selected = True Then
intCntr += 1
End If
Next
If intCntr > 3 Then
Label1.Text = "Too many selections."
Else
Label1.Text = "Your selection count is fine."
End If
----------------------------------------------------
J
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Reply By:
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lily611
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Reply Date:
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11/20/2004 12:11:45 AM
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Thanks a lot , the second portion has worked out.
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