c# - Add Ext.Net.Gridpanel in code behind -

i'm trying build several gridpanels result of search in db.

but never appears...

here code, what's wrong ?

http://pastebin.com/wutzwzrp

edit

ok, got it. have same problem, solved adding gridpanel :

renderto = this.extpanel.clientid 

and after build :

ext.gridpanel grid = this.buildgridpanel(forwarder.key, forwarder.value); grid.render(); //this.extpanel.controls.add(grid); 

        public void addgridpanel()         {           ext.net.gridpanel g=new ext.net.gridpanel();           ext.net.store store1=new ext.net.store();           model model = new model();           (int = 1; < tas.gettaskde().count / 2; i++)                 {                     fields = fields + "," + tas.gettaskde()[i].fieldname;                     modelfield modelfield = new modelfield();                     modelfield.name = tas.gettaskde()[i].fieldname;                     model.fields.add(modelfield);                      if (tas.gettaskde()[i].visibility == "true")                     {                         g.columnmodel.columns.add(new columnbase[] {                          new column                            {                              text = tas.gettaskde()[i].fieldadname,                              dataindex = tas.gettaskde()[i].fieldname,                              flex = 1                           },                          });                     }                 }           sqldatasource s = new sqldatasource();           s.connectionstring =configurationmanager.connectionstrings["connectionstring"].connectionstring;           s.selectcommand = query;           store1.model.add(model);           store1.datasource = s;           store1.databind();           g.store.add(store1);           g.render(this.form);         } 

this example of dynamic gridpanel hope helps