如何使用ASP.NET从C#中的SQL Server表中自动完成文本框中的值
我得到了一个SQL表,其列名为如何使用ASP.NET从C#中的SQL Server表中自动完成文本框中的值,c#,asp.net,sql-server,C#,Asp.net,Sql Server,我得到了一个SQL表,其列名为Name,Ascii\u Name,alternative names。当用户从值集中键入名称时,自动完成必须相应地显示值 例如,如果用户键入“Aba”,则必须显示以“Aba”开头的所有值,包括“备用名称”列中不遵循此模式的值,如abt。为了更清楚,另一个例子是,只要他输入Abayah,它就必须显示所有遵循此模式的名称,包括来自备用名称的名称,以及Abahahahran、abayrafda +------------+------------------+-----
Name
,Ascii\u Name
,alternative names
。当用户从值集中键入名称时,自动完成必须相应地显示值
例如,如果用户键入“Aba”,则必须显示以“Aba”开头的所有值,包括“备用名称”列中不遵循此模式的值,如abt。为了更清楚,另一个例子是,只要他输入Abayah,它就必须显示所有遵循此模式的名称,包括来自备用名称的名称,以及Abahahahran、abayrafda
+------------+------------------+--------------------------------------------------+
| Name | Ascii_Name | Alternate_names |
+------------+------------------+--------------------------------------------------+
| Abat | Abat1 | Abat, Abat1, abt |
| Abayahr | Abayahr1 | Abayahr,Abayahr1, abayahr, abahyahran, abayrafda |
| Abayah | Abayah1 | Abayah,Abayah1, abayahtr, abayahnwer |
| Abath | Abath1 | Abath, Abath1, abatgh, abatdfg |
| Carne | Carnt | Carne, Carnt, canrtrt, carnas |
+------------+------------------+--------------------------------------------------+
我在达到这个要求方面有点不知所措,任何关于这个方向的建议或建议都将不胜感激
在实现这一点上,我并没有要求任何只使用代码的指标或广泛的指导方针。您可以使用存储过程或带有
实体框架的LINQ。下面是一个存储过程的示例
存储过程:
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[AutoComplete_Search]
@keyword NVARCHAR(50)
AS
BEGIN
SELECT Name, Ascii_Name, Alternate_names
FROM your_table
WHERE Name LIKE '%' + @keyword + '%' OR Ascii_Name LIKE '%' + @keyword + '%' OR Alternate_names LIKE '%' + @keyword + '%'
END
.cshtml代码是:
<script type="text/javascript">
$(function () {
$("#txtCustomer").autocomplete({
source: function (request, response) {
$.ajax({
url: '/Home/AutoComplete/',
data: "{ 'keyword': '" + request.term + "'}",
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
success: function (data) {
response($.map(data, function (item) {
return item;
}))
},
error: function (response) {
alert(response.responseText);
},
failure: function (response) {
alert(response.responseText);
}
});
},
select: function (e, i) {
$("#hfCustomer").val(i.item.val);
},
minLength: 1
});
});
</script>
@using (Html.BeginForm("Index", "Home", FormMethod.Post))
{
<input type="text" id="txtCustomer" name="CustomerName" />
}
您可以将存储过程或LINQ与实体框架一起使用。下面是一个存储过程的示例
存储过程:
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[AutoComplete_Search]
@keyword NVARCHAR(50)
AS
BEGIN
SELECT Name, Ascii_Name, Alternate_names
FROM your_table
WHERE Name LIKE '%' + @keyword + '%' OR Ascii_Name LIKE '%' + @keyword + '%' OR Alternate_names LIKE '%' + @keyword + '%'
END
.cshtml代码是:
<script type="text/javascript">
$(function () {
$("#txtCustomer").autocomplete({
source: function (request, response) {
$.ajax({
url: '/Home/AutoComplete/',
data: "{ 'keyword': '" + request.term + "'}",
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
success: function (data) {
response($.map(data, function (item) {
return item;
}))
},
error: function (response) {
alert(response.responseText);
},
failure: function (response) {
alert(response.responseText);
}
});
},
select: function (e, i) {
$("#hfCustomer").val(i.item.val);
},
minLength: 1
});
});
</script>
@using (Html.BeginForm("Index", "Home", FormMethod.Post))
{
<input type="text" id="txtCustomer" name="CustomerName" />
}
您可以使用Ajax控件工具包。例如:
<asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePageMethods = "true">
</asp:ScriptManager>
<asp:TextBox ID="txtContactsSearch" runat="server"></asp:TextBox>
<cc1:AutoCompleteExtender ServiceMethod="SearchCustomers"
MinimumPrefixLength="2"
CompletionInterval="100" EnableCaching="false" CompletionSetCount="10"
TargetControlID="txtContactsSearch"
ID="AutoCompleteExtender1" runat="server" FirstRowSelected = "false">
</cc1:AutoCompleteExtender>
[System.Web.Script.Services.ScriptMethod()]
[System.Web.Services.WebMethod]
public static List<string> SearchCustomers(string prefixText, int count)
{
using (SqlConnection conn = new SqlConnection())
{
conn.ConnectionString = ConfigurationManager
.ConnectionStrings["constr"].ConnectionString;
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "select ContactName from Customers where " +
"ContactName like @SearchText + '%'";
cmd.Parameters.AddWithValue("@SearchText", prefixText);
cmd.Connection = conn;
conn.Open();
List<string> customers = new List<string>();
using (SqlDataReader sdr = cmd.ExecuteReader())
{
while (sdr.Read())
{
customers.Add(sdr["ContactName"].ToString());
}
}
conn.Close();
return customers;
}
}
}
您可以使用Ajax控件工具包。例如:
<asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePageMethods = "true">
</asp:ScriptManager>
<asp:TextBox ID="txtContactsSearch" runat="server"></asp:TextBox>
<cc1:AutoCompleteExtender ServiceMethod="SearchCustomers"
MinimumPrefixLength="2"
CompletionInterval="100" EnableCaching="false" CompletionSetCount="10"
TargetControlID="txtContactsSearch"
ID="AutoCompleteExtender1" runat="server" FirstRowSelected = "false">
</cc1:AutoCompleteExtender>
[System.Web.Script.Services.ScriptMethod()]
[System.Web.Services.WebMethod]
public static List<string> SearchCustomers(string prefixText, int count)
{
using (SqlConnection conn = new SqlConnection())
{
conn.ConnectionString = ConfigurationManager
.ConnectionStrings["constr"].ConnectionString;
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "select ContactName from Customers where " +
"ContactName like @SearchText + '%'";
cmd.Parameters.AddWithValue("@SearchText", prefixText);
cmd.Connection = conn;
conn.Open();
List<string> customers = new List<string>();
using (SqlDataReader sdr = cmd.ExecuteReader())
{
while (sdr.Read())
{
customers.Add(sdr["ContactName"].ToString());
}
}
conn.Close();
return customers;
}
}
}
查看HTML5
然后以这种方式将表格数据呈现到页面中。请澄清您使用的是WebForms还是MVC。@SeaCharp WebForms查看HTML5
,然后以这种方式将表格数据呈现到页面中。请澄清您使用的是WebForms还是MVC。@SeaCharp WebForms