0
ASPX код:Ajax автозаполнения Extender с contextKey
<script type ="text/javascript">
function setContextKey() {
find('AutoCompExt2').set_contextKey($get("%=TxtSyllabus.ClientID%>").value)
alert(("<%=TxtSyllabus.ClientID %>").value)
}
</script>
<asp:TextBox ID = "TxtSem" runat = "server" Width = "200px" onkeyup="setContextKey()"></asp:TextBox>
<asp:AutoCompleteExtender ID = "AutoCompExt2" runat = "server" MinimumPrefixLength="2" CompletionInterval="100" FirstRowSelected = "false"
TargetControlID= "TxtSem" EnableCaching = "false" CompletionSetCount = "10" ServiceMethod = "SearchSem" UseContextKey= "true" ></asp:AutoCompleteExtender>`
VB код:
<System.Web.Script.Services.ScriptMethod(), System.Web.Services.WebMethod()> _
Public Shared Function SearchSem(ByVal prefixText As String, ByVal count As Integer, ByVal contextKey As String) As List(Of String)
Try
Dim cnn As New SqlConnection
Dim cmd As New SqlCommand
Dim ds As New Data.DataSet
Dim SyllabusName = Mid(contextKey, 1, Len(contextKey) - 4)
Dim Year = Mid(contextKey, Len(contextKey) - 4, Len(contextKey))
cnn.ConnectionString = ConfigurationManager.ConnectionStrings("excelconn").ToString()
cmd.CommandText = "Select Semester From MastLookup where SyllabusName='" & SyllabusName & "' And SyllabusYear='" & Year & "' And [email protected] + '%'"
cmd.Parameters.AddWithValue("SearchText", prefixText)
cmd.CommandType = Data.CommandType.Text
cmd.Connection = cnn
cnn.Open()
Dim Syllabus As List(Of String) = New List(Of String)
Dim sdr As SqlDataReader = cmd.ExecuteReader
While sdr.Read
Syllabus.Add(sdr("Semester").ToString)
End While
cnn.Close()
Return Syllabus
cnn.Close()
Catch ex As Exception
End Try
End Function`
Ошибка: Я получаю нулевое значение ContextKey и даже Alertbox не появился.
Ohk..Thank you Natalie ... – user2768142