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：
/// <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 "" ;
}
希望本文所述对大家C#程序设计有所帮助。
dy("nrwz");
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