[英]Passing a Javascript-updated value from <input type="button"> to ASP.NET code behind
[英]Passing a value with Ajax to code behind in ASP.NET
我試圖使用Ajax將一組值傳遞給代碼隱藏方法,並將傳遞的數據插入數據庫表中。 但是我得到的只是用於字符串變量的空字符串和用於int變量的0。
我猜我的Ajax代碼無法正常工作,但是由於我是一個新手,所以任何人都可以看到我做錯了什么,為什么我不能將值從文本框傳遞給C#方法。
這是一個HTML代碼:
<div class="new-member-wrap">
<div id="new-member" class="new-member-inner">
<h2>Create new team member</h2>
<ul class="form">
<li>
<label>Name:</label>
<input type="text" class="in-text" />
</li>
<li>
<label>Hours per week:</label>
<input type="text" class="in-text" />
</li>
<li>
<label>Username:</label>
<input type="text" class="in-text" />
</li>
<li>
<label>Email:</label>
<input type="text" class="in-text" />
</li>
<li class="inline">
<label>Status:</label>
<span class="radio">
<label for="inactive">Inactive:</label>
<input type="radio" value="1" name="status" id="inactive" />
</span>
<span class="radio">
<label for="active">Active:</label>
<input type="radio" value="2" name="status" id="active" />
</span>
</li>
<li class="inline">
<label>Role:</label>
<span class="radio">
<label for="admin">Admin:</label>
<input type="radio" value="1" name="status" id="admin" />
</span>
<span class="radio">
<label for="worker">Worker:</label>
<input type="radio" value="2" name="status" id="worker" />
</span>
</li>
</ul>
<div class="buttons">
<div class="inner">
<a href="javascript:;" class="btn green" id="saveMember">Invite team member</a>
</div>
</div>
</div>
</div>
這是我的JS代碼:
<script type="text/javascript">
$(function () {
$('#saveMember').click(function () {
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "team-members.aspx/InsertMember",
dataType: "json",
data: "{'Name':'" + $('#name').val() + "','UserName':'" + $('#username').val() + "','HoursPerWeek':'" + $('#hours').val() + "','Email':'" + $('#email').val() + "'}",
success: OnSuccess,
error: ErrorFound
});
});
function OnSuccess(data) {
var obj = data.d;
if (obj == 'true') {
$('#name').val('');
$('#username').val('');
$('#hours').val('');
$('#email').val('');
};
}
function ErrorFound(result) {
alert(result);
}
});
</script>
這是代碼隱藏的:
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public static string InsertMember(string Name, string UserName, string HoursPerWeek, string Email)
{
string retMessage = string.Empty;
string ConnectionString = "Data Source=PRACTICE-001;Initial Catalog=n.mosorinski;User ID=n.mosorinski;Password=n.mosorinski;MultipleActiveResultSets=True;Application Name=EntityFramework";
using (SqlConnection con = new SqlConnection(ConnectionString))
{
string Query = "insert into TeamMember(Name, UserName, HoursPerWeek, Email) values(@Name,@UserName,@HoursPerWeek,@Email)";
using (SqlCommand cmd = new SqlCommand(Query, con))
{
con.Open();
cmd.Parameters.Add("@Name", Name);
cmd.Parameters.Add("@UserName", UserName);
cmd.Parameters.Add("@HoursPerWeek", HoursPerWeek);
cmd.Parameters.Add("@Email", Email);
int AffectedRow = cmd.ExecuteNonQuery();
if (AffectedRow == 1)
{
retMessage = "true";
}
else
{
retMessage = "false";
}
}
return retMessage;
}
}
所以問題是我得到了空字符串和0(代表HoursPerWeek),而不是文本框中的值。
這些元素在哪里?
在您的HTML代碼中添加ID:
<li>
<label>Name:</label>
<input id="name" type="text" class="in-text" />
</li>
<li>
<label>Hours per week:</label>
<input id="hours" type="text" class="in-text" />
</li>
<li>
<label>Username:</label>
<input id="username" type="text" class="in-text" />
</li>
<li>
<label>Email:</label>
<input id="email" type="text" class="in-text" />
</li>
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