How to update data using RadGrid1_ItemComand

[Duan]

Hi everybody,

I'm new on Telerik.

I wrote this code below, for CRUD operations:

The insert command worked perfectly, but Update did not.

On first attemp (TextBox)e.Item.FindControl("txtComponente");  return null, and I do not understand why 
On second attemp item.UpdateValues(obj);  do nothing

Anybody can help me?

Thanks in advance.

 

public void RadGrid1_ItemComand(Object sender , GridCommandEventArgs e)
       {
           switch (e.CommandName)
           {
               case "Insert" :
                   try
                   {
                       TextBox txtComponente = (TextBox)e.Item.FindControl("txtComponente");
                       TextBox txtDescricaoComponente = (TextBox)e.Item.FindControl("txtDescricaoComponente");
                       Inserir(txtComponente.Text, txtDescricaoComponente.Text);

                       DisplayMessage(false, "Sucess!");
                       Response.Redirect("ConsultaComponente.aspx");
                   }
                   catch ( Exception ex)
                   {
                       DisplayMessage(true, ex.Message);
                   }
                   break;

               case "Update" :
                   try
                   {

                       //First attempt
                       var ID = item.GetDataKeyValue("IdComponente").ToString();

                       TextBox txtComponente = (TextBox)e.Item.FindControl("txtComponente");
                       TextBox txtDescricaoComponente = (TextBox)e.Item.FindControl("txtDescricaoComponente");
                       Update(ID,txtComponente.Text, txtDescricaoComponente.Text);


                       //Second attempt

                       GridEditableItem item = e.Item as GridEditableItem;

                       var ID = item.GetDataKeyValue("IdComponente").ToString();

                       Componente obj = ComponenteController.Consulta(Convert.ToInt32(ID));

                       item.UpdateValues(obj);

                       Update(obj)
                   }
                   catch (Exception ex)
                   {
                       DisplayMessage(true, ex.Message);
                   }
                   break;
           }