jQuery Ajax 调用aspx后台方法返回DataTable 的例子
直接上代码：
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
/// <summary>
/// param1 param2 对应前面js传递来的参数。
/// </summary>
/// <param name="param1"></param>
/// <param name="param2"></param>
/// <returns></returns>
[System.Web.Services.WebMethod]
public static string GetDataTable(String param1, String param2)
{
return DataTable2Json(CreateDataTable(param1, param2));
}
public static System.Data.DataTable CreateDataTable(String param1, String param2)
{
System.Data.DataTable dataTable1 = new System.Data.DataTable("BlogUser");
System.Data.DataRow dr;
dataTable1.Columns.Add(new System.Data.DataColumn("UserId", typeof(System.Int32)));
dataTable1.Columns.Add(new System.Data.DataColumn("UserName", typeof(System.String)));
dataTable1.PrimaryKey = new System.Data.DataColumn[] { dataTable1.Columns["UserId"] };
for (int i = 0; i < 8; i++)
{
dr = dataTable1.NewRow();
dr[0] = i;
dr[1] = "【多米诺（DomUrl）】" + i.ToString() + " 前端传递的参数的值分别是:" + param1 + ", " + param2;
dataTable1.Rows.Add(dr);
}
return dataTable1;
}
public static string DataTable2Json(System.Data.DataTable dt)
{
StringBuilder jsonBuilder = new StringBuilder();
jsonBuilder.Append("{\"");
jsonBuilder.Append(dt.TableName.ToString());
jsonBuilder.Append("\":[");
for (int i = 0; i < dt.Rows.Count; i++)
{
jsonBuilder.Append("{");
for (int j = 0; j < dt.Columns.Count; j++)
{
jsonBuilder.Append("\"");
jsonBuilder.Append(dt.Columns[j].ColumnName);
jsonBuilder.Append("\":\"");
jsonBuilder.Append(dt.Rows[i][j].ToString());
jsonBuilder.Append("\",");
}
jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
jsonBuilder.Append("},");
}
jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
jsonBuilder.Append("]");
jsonBuilder.Append("}");
return jsonBuilder.ToString();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>jQuery Ajax 调用后台方法返回 DataSet 或者 DataTable 的例子</title>
<script type="text/javascript" src="jquery-1.6.2.min.js"></script>
</head>
<body>
<form runat="server">
<div ></div>
</form>
<script type="text/javascript">
$(document).ready(function () {
$.ajax({
type: "POST",
url: "<%=Request.Url.ToString() %>/GetDataTable", /* 注意后面的名字对应CS的方法名称 */
data: "{\"param1\":\"8888\",\"param2\":\"参数2\"}", /* 注意参数的格式和名称 */
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (result) {
data = jQuery.parseJSON(result.d); /*这里是否解析要看后台返回的数据格式，如果不返回表名则无需要 parseJSON */
t = "<table >";
$.each(data.BlogUser, function (i, item) { /* BlogUser是返回的表名 */
t += "<tr>";
t += "<td>" + item.UserId + "</td>";
t += "<td>" + item.UserName + "</td>";
t += "</tr>";
})
t += "</table>";
$("#result").html(t);
}
});
});
</script>
</body>
</html>