我的ASP.net 4.0 VB网站上有一个搜索引擎,我需要将搜索结果与各个页面链接起来。我知道这可以通过搜索文本框后面的提交按钮完成,但是提交按钮不适合我页面上的搜索栏旁边,而且看起来不对。
旧的方式,结果存储在一个隐藏的div中,在那里他们成为他们页面的链接。我希望我的旧搜索代码可以合并到新的搜索中,但我不知道它会去哪里。我能想到的唯一方法是将代码放在web服务中一段时间或for循环。我可能会离开这里,但这就是为什么我要问最好的方法是什么呢?
<WebMethod()> _
Public Function GetCompletionList(ByVal prefixText As String, ByVal count As Integer) As String()
Dim ProductSql As String = "Select ProductName FROM Product WHERE ProductName LIKE '" & prefixText & "%'"
Dim sqlConn As New SqlConnection
sqlConn.Open()
Dim myCommand As New SqlCommand(ProductSql, sqlConn)
Dim myReader As SqlDataReader = myCommand.ExecuteReader()
Dim myTable As New DataTable
myTable.TableName = "ProductSearch"
myTable.Load(myReader)
sqlConn.Close()
Dim items As String() = New String(myTable.Rows.Count - 1) {}
Dim i As Integer = 0
For Each dr As DataRow In myTable.Rows
items.SetValue(dr("ProductName").ToString(), i)
i += 1
Next
Return items
End Function
<asp:ScriptManager ID="ScriptManager1" runat="server">
<Services>
<asp:ServiceReference Path="ProductSearch.asmx" />
</Services>
</asp:ScriptManager>
<asp:TextBox ID="Search" runat="server" AutoComplete="off"></asp:TextBox>
<asp:AutoCompleteExtender ID="AutoCompleteExtender1" runat="server" TargetControlID="Search" ServicePath="~/ProductSearch.asmx" ServiceMethod="GetCompletionList" MinimumPrefixLength="1" CompletionSetCount="120" EnableCaching="true" CompletionListCssClass="results">
</asp:AutoCompleteExtender>
答案 0 :(得分:0)
我使用了一些小的javascript来搜索我搜索引擎查询的结果。这就是我现在所拥有的 - 尽管Web服务中的For Each循环无法正常工作。
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<script type="text/javascript">
function AutoCompleteClientMethod(source, eventArgs) {
var value = eventArgs.get_value();
window.location = ("/Product/Default.aspx?id=" + value)
}
</script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="body" Runat="Server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
<Services>
<asp:ServiceReference Path="ProductSearch.asmx" />
</Services>
</asp:ScriptManager>
<asp:TextBox ID="Search" runat="server" AutoComplete="off"></asp:TextBox>
<asp:AutoCompleteExtender ID="AutoCompleteExtender1" runat="server" TargetControlID="Search" ServicePath="~/ProductSearch.asmx" ServiceMethod="GetProducts" MinimumPrefixLength="1" CompletionSetCount="120" EnableCaching="true" OnClientItemSelected="AutoCompleteClientMethod">
</asp:AutoCompleteExtender>
</asp:Content>
<WebMethod()> _
Public Function GetProducts(ByVal prefixText As String, ByVal count As Integer) As String()
Dim ProductSql As String = "Select ProductID, ProductName FROM Product WHERE ProductName LIKE '" & prefixText & "%'"
Dim sqlConn As New SqlConnection
sqlConn.Open()
Dim myCommand As New SqlCommand(ProductSql, sqlConn)
Dim myReader As SqlDataReader = myCommand.ExecuteReader()
Dim myTable As New DataTable
myTable.TableName = "ProductSearch"
myTable.Load(myReader)
sqlConn.Close()
Dim items As String() = New String(myTable.Rows.Count - 1) {}
Dim i As Integer = 0
For Each dr As DataRow In myTable.Rows
items.SetValue(dr("ProductName").ToString(), i)
i += 1
Next
Return items
End Function
End Class