我正在使用asp.net和c#开发我的第一个网站。 如何从asp.net中的js函数调用c#函数?我想插入表单数据到sql数据库。如何从asp.net中的js函数调用c#函数?
C#(add_project.aspx.cs):
using System.Web.Services;
public partial class add_project : System.Web.UI.Page
{
[WebMethod]
public static void InsertIntoDatabase(string projectname, string piname)
{
Console.WriteLine("hello");// this doesn't appear which mean it doesn't enter this function
SqlConnection conn = new SqlConnection("Data Source=servername;Initial Catalog=databasename;Integrated Security=SSPI");
string sql = "INSERT INTO Projects (project_name, principal_investigator) VALUES (@project_name,@pi_name)";
try
{
conn.Open();
SqlCommand cmd = new SqlCommand(sql, conn);
SqlParameter[] param = new SqlParameter[2];
param[0] = new SqlParameter("@project_name", System.Data.SqlDbType.VarChar, 50);
param[1] = new SqlParameter("@principal_investigator", System.Data.SqlDbType.VarChar, 50);
param[0].Value = projectname;
param[1].Value = piname;
for (int i = 0; i < param.Length; i++)
{
cmd.Parameters.Add(param[i]);
}
cmd.ExecuteNonQuery();
}
catch (System.Data.SqlClient.SqlException ex)
{
string msg = "Insert Error:";
msg += ex.Message;
throw new Exception(msg);
}
finally
{
conn.Close();
}
}
}
在aspx文件JS(add_project.aspx):
<script>
function doSomething() {
var $projectname = $("#project_name").val();
var $piname = $("#pi_name").val();
alert($piname); // This alert appear
$.ajax({
type: "POST",
url: 'add_project.aspx/InsertIntoDatabase',
data: "{'projectname':'" + $projectname + "', 'piname':'" + $piname + "' }", //Pass the parameter names and values
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
alert('success');
},
error: function (e) {
alert('error'); // this msg appear
}
});
}
形式在aspx文件(add_project.aspx):
<form class="form-horizontal form-label-left" id="add_project_form" runat="server" onsubmit="doSomething();">
<div id="wizard" class="form_wizard wizard_horizontal">
<!-- Project Name -->
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="project_name">Project Name <span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
<asp:TextBox id="project_name" required="required" class="form-control col-md-7 col-xs-12" runat="server"></asp:TextBox>
</div>
</div>
<!-- PI name -->
<div class="form-group">
<label class="control-label col-md-3 col-sm-3 col-xs-12" for="pi_name">PI Name <span class="required">*</span>
</label>
<div class="col-md-6 col-sm-6 col-xs-12">
<asp:TextBox id="pi_name" required="required" class="form-control col-md-7 col-xs-12" runat="server"></asp:TextBox>
</div>
</div>
</div>
</form>
我没有访问表单的提交按钮(因为我使用引导模板)。
感谢
解决方案: 我通过解决问题的C#功能 前还放[的WebMethod],我是在插入语句错误的语法。 感谢@Pawan和所有人的帮助。
删除''从url' – Pawan
我尝试过,但.cs'扩展它不起作用 – alaa
你可以用你的方法[WebMethod]属性从客户端访问方 –