JSON Conversion Tool class for dataset in. net

/**

* Method name: datasettojson beat1.0

* Parameter introduction:

* Ds-dataset |

* Jsonname-name of the root element of the JSON data |

* Parname-array of names in the dataset to be converted |

* This method is a test sample version, which is generated because of my project needs ,.

* It is initially intended to be made into a class library. datatable can be converted.

* Completion time: White Valentine's Day

**/

Private string datasettojson (Dataset ds, string jsonname, string [] parname)

{

Try

{

If (DS = NULL)

{

Return "dataset is null, so I can't do it to JSON! ";

}

If (jsonname. Length <1)

{

Return "you set the JSON name is wrong! ";

}

If (Ds. Tables [0]. Columns. Count <parname. length)

{

Return "you give the parname is bigger than dataset columns! ";

}

String josn = "{\" "+ jsonname + "\":[";

String temp = "";

For (Int J = 0; j <Ds. Tables [0]. Rows. Count; j ++)

{

Temp = temp + "{";

For (INT I = 0; I <parname. length; I ++)

{

Temp + = "\" "+ parname [I] +" \ ": \" "+ Ds. tables [0]. rows [J] [parname [I] + "\"";

If (I! = Parname. Length-1)

{

Temp = temp + ",";

}

}

Temp = temp + "},";

}

Josn = josn + temp + "]}";

Return josn;

}

Catch (exception ex)

{

Return "codeing is error ----" + ex. tostring ();

}

}