public class DataConvertJson
{ #region dataTable转换成Json格式
/// <summary>
/// dataTable转换成Json格式
/// </summary>
/// <param name="dt"></param>
/// <returns></returns>
public static string DataTable2Json(DataTable dt)
{
StringBuilder jsonBuilder = new StringBuilder();
jsonBuilder.Append("{\"");
jsonBuilder.Append(dt.TableName);
jsonBuilder.Append("\":[");
jsonBuilder.Append("[");
for (int i = ; i < dt.Rows.Count; i++)
{
jsonBuilder.Append("{");
for (int j = ; 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 - , );
jsonBuilder.Append("},");
}
jsonBuilder.Remove(jsonBuilder.Length - , );
jsonBuilder.Append("]");
jsonBuilder.Append("}");
return jsonBuilder.ToString();
} #endregion dataTable转换成Json格式
#region DataSet转换成Json格式
/// <summary>
/// DataSet转换成Json格式
/// </summary>
/// <param name="ds">DataSet</param>
/// <returns></returns>
public static string Dataset2Json(DataSet ds)
{
StringBuilder json = new StringBuilder(); foreach (DataTable dt in ds.Tables)
{
json.Append("{\"");
json.Append(dt.TableName);
json.Append("\":");
json.Append(DataTable2Json(dt));
json.Append("}");
}
return json.ToString();
}
#endregion /// <summary>
/// Msdn
/// </summary>
/// <param name="jsonName"></param>
/// <param name="dt"></param>
/// <returns></returns>
public static string DataTableToJson(string jsonName, DataTable dt)
{
StringBuilder Json = new StringBuilder();
Json.Append("{\"" + jsonName + "\":[");
if (dt.Rows.Count > )
{
for (int i = ; i < dt.Rows.Count; i++)
{
Json.Append("{");
for (int j = ; j < dt.Columns.Count; j++)
{
Json.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":\"" + dt.Rows[i][j].ToString() + "\"");
if (j < dt.Columns.Count - )
{
Json.Append(",");
}
}
Json.Append("}");
if (i < dt.Rows.Count - )
{
Json.Append(",");
}
}
}
Json.Append("]}");
return Json.ToString();
}
}