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在Google上搜索並閱讀文檔後,我很困惑它是如何工作的。當調用具有值的通用處理程序併成功返回多個值時。你如何循環訪問數據庫中的記錄?你是循環遍歷通用處理程序的記錄,還是通過JQuery的每個函數成功執行?以下是當前的代碼,當存在多個值時不起作用。刪除$。每個(VARDATA,函數()和它的作品;但是,只有一條記錄顯示JQuery從通用處理程序中檢索多個值
這是該數據應如何照顧你在伊利在文本框中鍵入並單擊按鈕
Business Profile ID: 8
Business Name: The Boston Store
Phone Number: 814-455-1478
E-Mail: [email protected]
Business Profile ID: 9
Business Name: Sam The Man Pizza
Phone Number: 814-868-3809
E-Mail: [email protected]
jQuery腳本
$(document).ready(function() {
$('#button').click(function() {
$.ajax({
contentType: "text/html; charset=utf-8",
data: "ID=" + $('#businessSelect').val(),
url: "getTest.ashx",
dataType: "text",
success: function (data) {
var vardata = JSON.parse(data);
$.each(vardata, function (index, value) {
$("#BusProfileID").html(value.BusProfileID);
$("#BusinessName").html(value.BusinessName);
$("#BusinessPhone").html(value.BusinessPhone);
$("#BusinessEmail").html(value.BusinessEmail);
});
}
})
});
});
ashx的處理程序頁面
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/html";
string ID = context.Request.QueryString["ID"];
SqlConnection conn;
SqlCommand comm;
SqlDataReader reader;
string connectionString = ConfigurationManager.ConnectionStrings["Conn"].ConnectionString;
conn = new SqlConnection(connectionString);
comm = new SqlCommand("SELECT BusProfileID, BusinessName, BusinessPhone, BusinessEmail FROM [BusProfile] WHERE BusinessCity = @BusinessCity", conn);
comm.Parameters.Add("@BusinessCity", System.Data.SqlDbType.VarChar);
comm.Parameters["@BusinessCity"].Value = ID;
try
{
conn.Open();
reader = comm.ExecuteReader();
List<BusinessData> objList = new List<BusinessData>();
BusinessData objData;
while (reader.Read())
{
objData = new BusinessData();
objData.BusProfileID = reader["BusProfileID"].ToString();
objData.BusinessName = reader["BusinessName"].ToString();
objData.BusinessPhone = reader["BusinessPhone"].ToString();
objData.BusinessEmail = reader["BusinessEmail"].ToString();
objList.Add(objData);
context.Response.Write(JsonConvert.SerializeObject(objList));
}
reader.Close();
}
finally
{
conn.Close();
}
}
public class BusinessData
{
public string BusProfileID { get; set; }
public string BusinessName { get; set; }
public string BusinessPhone { get; set; }
public string BusinessEmail { get; set; }
}
public bool IsReusable
{
get
{
return false;
}
}
}
aspx頁面
<div class="row">
<div class="columns medium-12">
<div class="row">
<div class="medium-6 columns medium-centered">
<label style="font-size:1em">Select City:</label>
<input type="text" id="businessSelect" style="height:2em;" /> <input type="button" id="button" value="Click me" />
</div>
</div>
<div class="row">
<div class="medium-6 columns medium-centered">
<label style="font-size:1em">Business Profile ID:</label>
<label id="BusProfileID" style="font-size:1em;"></label>
</div>
</div>
<div class="row">
<div class="medium-6 columns medium-centered">
<label style="font-size:1em">Business Name:</label>
<label id="BusinessName" style="font-size:1em;"></label>
</div>
</div>
<div class="row">
<div class="medium-6 columns medium-centered">
<label style="font-size:1em">Phone Number:</label>
<label id="BusinessPhone" style="font-size:1em;"></label>
</div>
</div>
<div class="row">
<div class="medium-6 columns medium-centered">
<label id="BusinessEmail" style="font-size:1em">E-Mail:</label>
</div>
</div>
</div>
它不返回任何結果。我編輯了原始問題以顯示您的建議。 –
我還沒有根據您的其他建議獲得任何結果。但是,通過解決這個問題,我正在更好地理解JSON的工作原理。 –