在我的项目中,我正在使用autocomplete extender。使用此我只选择一个项目。但我想选择多个项目。我该怎么做。请帮助我。下面是我的代码:
aspx页面:
<asp:TextBox ID="TextBox1" runat="server" CssClass="autosuggest ui-timepicker-input" Width="300px"></asp:TextBox>
<ajaxToolkit:AutoCompleteExtender ID="TextBox1_AutoCompleteExtender" runat="server" DelimiterCharacters=""
Enabled="True" ServiceMethod="GetListofCountries" MinimumPrefixLength="2" EnableCaching="true" CompletionSetCount="10" CompletionInterval="10" FirstRowSelected="false"
TargetControlID="TextBox1">
</ajaxToolkit:AutoCompleteExtender>
aspx.cs页面:
[System.Web.Script.Services.ScriptMethod()]
[System.Web.Services.WebMethod]
public static List<string> GetListofCountries(string prefixText, int count)
{
//using (SqlConnection sqlconn = new SqlConnection(ConfigurationManager.ConnectionStrings["con2"].ConnectionString))
//{
// sqlconn.Open();
// SqlCommand cmd = new SqlCommand("select UserEmail from [User] where Useremail like '%" + prefixText + "%'", sqlconn);
// cmd.Parameters.AddWithValue("@prefixText", prefixText);
// SqlDataAdapter da = new SqlDataAdapter(cmd);
// DataTable dt = new DataTable();
// da.Fill(dt);
// List<string> Emailid = new List<string>();
// for (int i = 0; i < dt.Rows.Count; i++)
// {
// Emailid.Add(dt.Rows[i]["UserEmail"].ToString());
// }
// return Emailid;
//}
List<string> customers = new List<string>();
using (SqlConnection conn = new SqlConnection())
{
List<string> terms = prefixText.Split(',').ToList();
terms = terms.Select(s => s.Trim()).ToList();
//Extract the term to be searched from the list
string searchTerm = terms.LastOrDefault().ToString().Trim();
//Return if Search Term is empty
if (string.IsNullOrEmpty(searchTerm))
{
// return
}
//Populate the terms that need to be filtered out
List<string> excludeTerms = new List<string>();
if (terms.Count > 1)
{
terms.RemoveAt(terms.Count - 1);
excludeTerms = terms;
}
conn.ConnectionString = ConfigurationManager
.ConnectionStrings["con2"].ConnectionString;
using (SqlCommand cmd = new SqlCommand())
{
string query = "select UserEmail from [User] where Useremail like '%" + prefixText + "%'";
//Filter out the existing searched items
if (excludeTerms.Count > 0)
{
query += string.Format(" and UserEmail not in ({0})", string.Join(",", excludeTerms.Select(s => "'" + s + "'").ToArray()));
}
cmd.CommandText = query;
cmd.Parameters.AddWithValue("@prefixText", prefixText);
cmd.Connection = conn;
conn.Open();
using (SqlDataReader sdr = cmd.ExecuteReader())
{
while (sdr.Read())
{
//customers.Add(string.Format("{0}-{1}", sdr["Userid"], sdr["CustomerId"]));
customers.Add(string.Format("{0}", sdr["UserEmail"]));
}
}
conn.Close();
}
return customers;
}
但它只提供一个值。我想选择多个项目。请帮助我。
答案 0 :(得分:1)
最后我得到了上述问题的答案。在AutoCompleteExtender中添加DelimiterCharacters="," and ShowOnlyCurrentWordInCompletionListItem="true"
。为AutoCompleteExtender添加这两项。它对我有用。如果有人想要这类问题,我希望这个答案对你有帮助,这就是为什么我发布在这里。谢谢你。