JSON Tool Class

Using Newtonsoft.json;
Using System;
Using System.Collections.Generic;
Using System.Data;
Using System.Linq;
Using System.Text;
Using System.Text.RegularExpressions;

public class Datatojson
{
<summary>
Serialize object object to JSON string
</summary>
<param name= "obj" > example of a sequence session </param>
<returns> serializing JSON strings </returns>
public static string Serializetojson (Object obj)
{
return Jsonconvert.serializeobject (obj);
}

<summary>
Deserializes JSON strings into object objects
</summary>
<param name= "JSON" >json string </param>
<returns> Object Instances </returns>
public static Object Deserializefromjson (string json)
{
Return Jsonconvert.deserializeobject (JSON);
}

<summary>
Deserializes a JSON string into a generic t
</summary>
<typeparam name= "T" > Generics </typeparam>
<param name= "JSON" >json string </param>
<returns> Generics-t</returns>
public static T deserializefromjson<t> (string json)
{
Return jsonconvert.deserializeobject<t> (JSON);
}
<summary>
Returns the JSON format used by the DataGrid in Easyui/extjs
</summary>
<param name= "DT" >datatable data </param>
<param name= "Count" > Total number of bars </param>
<returns></returns>
public static string Datatabletojson (DataTable dt, int count)
{
StringBuilder Sbjson = new StringBuilder ();
Sbjson. Append ("{");
Sbjson. Append ("\" total\ ":" + count + ", \" rows\ ": [");
if (dt! = NULL)
{
for (int i = 0; i < dt. Rows.Count; i++)
{
if (i > 0)
{
Sbjson. Append (",");
Sbjson. Append ("{");
foreach (DataColumn dc in dt. Columns)
{
String value = Stringplus.htmlencode (dt. ROWS[I][DC. ColumnName]. ToString (). Trim ());
if (dt. Columns.indexof (DC) > 0)
{
Sbjson. Append (",");
Sbjson. Append ("\" "+ DC.) ColumnName + "\": \ "" + Value + "\" ");
}
Else
{
Sbjson. Append ("\" "+ DC.) ColumnName + "\": \ "" + Value + "\" ");
}
}
Sbjson. Append ("}");
}
Else
{
Sbjson. Append ("{");
foreach (DataColumn dc in dt. Columns)
{
String value = Stringplus.htmlencode (dt. ROWS[I][DC. ColumnName]. ToString (). Trim ());
if (dt. Columns.indexof (DC) > 0)
{
Sbjson. Append (",");
Sbjson. Append ("\" "+ DC.) ColumnName + "\": \ "" + Value + "\" ");
}
Else
{
Sbjson. Append ("\" "+ DC.) ColumnName + "\": \ "" + Value + "\" ");
}
}
Sbjson. Append ("}");
}
}
}
Sbjson. Append ("]}");

Return Sbjson. ToString ();
}

<summary>
Generating a JSON tree structure from a DataTable
</summary>
<param name= "tabel" > Data source </param>
<param name= "Idcol" >id column </param>
<param name= "Txtcol" >text column </param>
<param name= "RelA" > Relationship fields </param>
<param name= "PId" > Parent id</param>
public static string Gettreejsonbytable (DataTable tabel, String idcol, String Txtcol, String RelA, Object pId)
{
String rlt = "";
StringBuilder result = new StringBuilder ();
StringBuilder sb = new StringBuilder ();
Result. Append (sb.) ToString ());
Sb. Length = 0;
if (tabel. Rows.Count > 0)
{
Sb. Append ("[");
string filer = string. Format ("{0}= ' {1} '", RelA, PId);
datarow[] rows = tabel. Select (filer);
if (rows. Length > 0)
{
foreach (DataRow row in rows)
{
Sb. Append ("{\" id\ ": \" "+ Row[idcol] +" \ ", \" text\ ": \" "+ Row[txtcol] +" \ ", \" state\ ": \" open\ "");
if (tabel. Select (String. Format ("{0}= ' {1} '", RelA, Row[idcol]). Length > 0)
{
Sb. Append (", \" children\ ":");
Gettreejsonbytable (Tabel, Idcol, Txtcol, RelA, Row[idcol]);
Result. Append (sb.) ToString ());
Sb. Length = 0;
}
Result. Append (sb.) ToString ());
Sb. Length = 0;
Sb. Append ("},");
}
SB = sb. Remove (sb.) Length-1, 1);
}
Sb. Append ("]");
Result. Append (sb.) ToString ());
RLT = result. ToString ();
Sb. Length = 0;
}
return RLT;
}

#region JSON to DataTable
<summary>
Returns the Datetable,json data format according to JSON, such as:
{Table:[{column1:1,column2:2,column3:3},{column1:1,column2:2,column3:3}]}
</summary>
<param name= "Strjson" >json string </param>
<returns></returns>
public static DataTable jsontodatatable (String Strjson)
{
Remove Table name
var rg = new Regex (@ "(? <={) [^:]+ (? =:\[)", regexoptions.ignorecase);
String strName = RG. Match (Strjson). Value;
DataTable TB = null;
Remove Table name
Strjson = strjson.substring (Strjson.indexof ("[") + 1);
Strjson = strjson.substring (0, Strjson.indexof ("]"));

Get Data
RG = new Regex (@ "(? <={) [^}]+ (? =})");
MatchCollection MC = RG. Matches (Strjson);
for (int i = 0; I < MC. Count; i++)
{
String strrow = Mc[i]. Value;
string[] strrows = Strrow.split (', ');

Create a table
if (TB = = NULL)
{
TB = new DataTable ();
Tb. TableName = StrName;
foreach (String str in strrows)
{
var dc = new DataColumn ();
string[] Strcell = str. Split (': ');
dc. ColumnName = strcell[0];
Tb. Columns.Add (DC);
}
Tb. AcceptChanges ();
}

Add content
DataRow dr = TB. NewRow ();
for (int r = 0; r < strrows.length; r++)
{
DR[R] = Strrows[r]. Split (': ') [1]. Trim (). Replace (",", ","). Replace (":", ":"). Replace ("\" "," ");
}
Tb. Rows.Add (DR);
Tb. AcceptChanges ();
}

return TB;
}
#endregion

#region Generating Easyui tree JSON structure from a DataTable
<summary>
Generate a Easyui tree JSON structure based on a DataTable
</summary>
<param name= "tabel" > Data source </param>
<param name= "Idcol" >id column </param>
<param name= "Txtcol" >text column </param>
<param name= "url" > Node url</param>
<param name= "RelA" > Relationship fields </param>
<param name= "PId" > Parent id</param>
<example>string JSON = gettreejsonbytable (DT, "id", "name", "url", "Fatherid", "0");</example>
private string Gettreejsonbytable (DataTable tabel, String idcol, String txtcol, String url, String rela, Object pId)
{
StringBuilder result = new StringBuilder ();
StringBuilder sb = new StringBuilder ();
Result. Append (sb.) ToString ());
Sb. Length = 0;
if (tabel. Rows.Count > 0)
{
Sb. Append ("[");
string filer = string. Format ("{0}= ' {1} '", RelA, PId);
datarow[] rows = tabel. Select (filer);
if (rows. Length > 0)
{
foreach (DataRow row in rows)
{
Sb. Append ("{\" id\ ": \" "+ Row[idcol] +" \ ", \" text\ ": \" "+ Row[txtcol] +" \ ", \" attributes\ ": \" "+ row[url" + "\", \ "state\": \ "Op En\ "");
if (tabel. Select (String. Format ("{0}= ' {1} '", RelA, Row[idcol]). Length > 0)
{
Sb. Append (", \" children\ ":");
Gettreejsonbytable (Tabel, Idcol, Txtcol, URL, RelA, Row[idcol]);
Result. Append (sb.) ToString ());
Sb. Length = 0;
}
Result. Append (sb.) ToString ());
Sb. Length = 0;
Sb. Append ("},");
}
SB = sb. Remove (sb.) Length-1, 1);
}
Sb. Append ("]");
Result. Append (sb.) ToString ());
Sb. Length = 0;
}
return result. ToString ();
}
#endregion

}

JSON Tool Class