我需要一个自动完成文本框。我尝试了以下代码段:
<input type="text" id="tbx_srchByFn" class="autosuggest" disabled="disabled" value="fieldname" runat="server"
onclick="this.value=''" />
jquery
<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/base/jquery-ui.css"
rel="stylesheet" type="text/css" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
SearchText();
});
function SearchText() {
$(".autosuggest").autocomplete({
source: function (request, response) {
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "DDL_Home.aspx/GetAutoCompleteData",
data: "{'username':'" + document.getElementById('tbx_srchByFn').value + "'}",
dataType: "json",
success: function (data) {
response(data.d);
},
error: function (result) {
alert("Error");
}
});
}
});
}
</script>
.cs 文件
using System.Web.Services;
[WebMethod]
public static List<string> GetAutoCompleteData(string username)
{
List<string> result = new List<string>();
using (SqlConnection con = new SqlConnection("constr"))
{
using (SqlCommand cmd = new SqlCommand("select DISTINCT Name from Register where Name LIKE '%'+@SearchText+'%'", con))
{
con.Open();
cmd.Parameters.AddWithValue("@SearchText", username);
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
result.Add(dr["Name"].ToString());
}
return result;
}
}
}
当我在文本框中输入内容时,我没有得到输出。但是当我删除 runat="server" 时,它就可以工作了。我只需要在服务器中使用它,以便我可以从服务器端获取文本框值
最佳答案
when I remove runat="server" it works.
我认为回发发生在您的代码中。因此您必须重新绑定(bind) SearchText()
函数。在您的代码中添加以下 javascript
。
试试这个代码:
var prm_lp = Sys.WebForms.PageRequestManager.getInstance();
//Re-bind for callbacks
prm_lp.add_endRequest(function () {
SearchText();
});
关于javascript - 自动完成文本框出错,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38911534/