本文实例讲述了C#实现集合转换成json格式数据的方法。分享给大家供大家参考，具体如下：
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/// <summary>
/// dataTable转换成Json格式
/// </summary>
/// <param name="dt"></param>
/// <returns></returns>
public static string ToJson(DataTable dt)
{
if (dt != null && dt.Rows.Count > 0)
{
StringBuilder jsonBuilder = new StringBuilder();
jsonBuilder.Append("{\"");
jsonBuilder.Append("data");
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(jsonStringFromat(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();
}
else
{
return "";
}
}
/// <summary>
/// Enumerable转成JSON
/// </summary>
/// <param name="list"></param>
/// <returns></returns>
public static string EnumerableToJson(IEnumerable list)
{
StringBuilder json = new StringBuilder();
int i = 0;
if (list != null)
{
json.Append("{\"data\":[");
foreach (var item in list)
{
json.Append("{");
PropertyInfo[] pi = item.GetType().GetProperties();
int j = 0;
foreach (var p in pi)
{
if (j < pi.Length - 1)
{
json.Append("\"" + p.Name.ToString() + "\":\"" + jsonStringFromat(p.GetValue(item, null).ToString()) + "\",");
}
else
{
json.Append("\"" + p.Name.ToString() + "\":\"" + jsonStringFromat(p.GetValue(item, null).ToString()) + "\"");
}
j++;
}
i++;
json.Append("},");
}
json.Remove(json.Length - 1, 1);
json.Append("]}");
}
if (i != 0)
return json.ToString();
else
return "";
}
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希望本文所述对大家C#程序设计有所帮助。