TechEthical CEHP

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using Directory;
using System.IO;


namespace Bathuasoft.admin
{
    public partial class topic : System.Web.UI.Page
    {
        public System.Data.DataTable dt = new System.Data.DataTable();
        public System.Data.SqlClient.SqlDataAdapter SqlAdapter = new SqlDataAdapter();

        protected void Page_Load(object sender, EventArgs e)
        {
            connection_sql obj = new connection_sql();
            obj.MakeConnection();

            if (!IsPostBack)
            {

                if (Session["Loginxtr"].ToString() != "1254lkjhhfdgftfrdgf")
                {
                    Response.Redirect("login.aspx");
                }

                getCourse();
                //getUnit();
                //GridFill(); 
            }
        }

        public void getCourse()
        {
            connection_sql obj = new connection_sql();
            obj.MakeConnection();
            string vString = "";

            vString = "Select  ID , NAME from tbl_Courses";

            dt = obj.getDataTable(vString);
            cmbCourseName.DataSource = null;
            cmbCourseName.DataSource = dt;
            cmbCourseName.DataTextField = "NAME";
            cmbCourseName.DataValueField = "ID";
            cmbCourseName.DataBind();
            cmbCourseName.Items.Insert(0, "");
            obj.CloseConnection();
        }
        public void getsubject()
        {
            connection_sql obj = new connection_sql();
            obj.MakeConnection();
            string vString = "";

            vString = "Select  ID , NAME from tbl_Subject where course_ID='" + cmbCourseName.SelectedValue + "' ";

            dt = obj.getDataTable(vString);
            cmbSubjectName.DataSource = null;
            cmbSubjectName.DataSource = dt;
            cmbSubjectName.DataTextField = "NAME";
            cmbSubjectName.DataValueField = "ID";
            cmbSubjectName.DataBind();
            cmbSubjectName.Items.Insert(0, "");
            obj.CloseConnection();
        }

        public void getUnit()
        {
            connection_sql obj = new connection_sql();
            obj.MakeConnection();
            string vString = "";

            vString = "Select  ID , NAME from tbl_Unit where Subject_ID='"+cmbSubjectName.SelectedValue+"' ";

            dt = obj.getDataTable(vString);
            cmbUnitName.DataSource = null;
            cmbUnitName.DataSource = dt;
            cmbUnitName.DataTextField = "NAME";
            cmbUnitName.DataValueField = "ID";
            cmbUnitName.DataBind();
            cmbUnitName.Items.Insert(0, "");
            obj.CloseConnection();
        }


        protected void butSave_Click(object sender, EventArgs e)
        {

            if (butSave.Text == "Save")
            {
               
                connection_sql obj = new connection_sql();
                obj.MakeConnection();
                SqlCommand cmd = new SqlCommand("SP_Topic_ENTERY", obj.conn);
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.AddWithValue("@Course_ID", cmbCourseName.SelectedValue);
                cmd.Parameters.AddWithValue("@Subject_ID", cmbSubjectName.SelectedValue);
                cmd.Parameters.AddWithValue("@Unit_ID", cmbUnitName.SelectedValue);
                cmd.Parameters.AddWithValue("@name", txtTopicName.Text);
                cmd.Parameters.AddWithValue("@Status", "Active");
                cmd.ExecuteNonQuery();
                obj.CloseConnection();
                GridFill();

                butSave.Text = "Save";
                //cmbUnitName.Text = "";
                //cmbSubjectName.Text = "";
                //cmbCourseName.Text = "";
                txtTopicName.Text = "";
                ScriptManager.RegisterStartupScript(this, GetType(), "set", "alert('Save Successfully');", true);
            }
            else if (butSave.Text == "Update")
            {
                connection_sql obj = new connection_sql();
                obj.MakeConnection();
                string qry = " Update tbl_Topics set name='" + txtTopicName.Text + "',Unit_ID='" + cmbUnitName.SelectedValue + "',Subject_ID='" + cmbSubjectName.SelectedValue + "',course_ID='" + cmbCourseName.SelectedValue + "' " +
                                                  ", Status ='" + ddlStatus.SelectedValue + "'  WHERE ID='" + ViewState["ID"] + "' ";
                SqlCommand cmd = new SqlCommand(qry,obj.conn);
                cmd.ExecuteNonQuery();
                obj.CloseConnection();
                GridFill();
                butSave.Text = "Save";
                cmbUnitName.Text = "";
                cmbSubjectName.Text = "";
                cmbCourseName.Text = "";
                txtTopicName.Text = "";
                ScriptManager.RegisterStartupScript(this, GetType(), "set", "alert('Update Successfully');", true);
            }


        }

        public void GridFill()
        {
            //dt.Clear();
            connection_sql obj = new connection_sql();
            obj.MakeConnection();
            SqlCommand cmd = new SqlCommand("SP_Topicmaster", obj.conn);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@Unit_ID",cmbUnitName.SelectedValue);
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            DataTable dt = new DataTable();
            da.Fill(dt);

//              dt = obj.getDataTable(@"SELECT tp.ID ,tp.Name as Topic, ut.Name as Unit, sub.Name as Subject, cr.Name as Course, tp.status               
//                   FROM [tbl_Topics] tp
//                        INNER JOIN tbl_Unit ut on tp.Unit_ID = ut.ID
//                        INNER JOIN tbl_Subject sub on ut.Subject_ID = sub.ID
//                        INNER JOIN tbl_Courses cr on sub.Course_ID = cr.ID
//                        where tp.ID > 0 ");

            GridView.DataSource = dt;
            GridView.DataBind();
            obj.CloseConnection();
        }

        protected void cmbCourseName_SelectedIndexChanged(object sender, EventArgs e)
        {
            getsubject();
            
        }

        protected void cmbSubjectName_SelectedIndexChanged(object sender, EventArgs e)
        {
            getUnit();
        }


        protected void GridView_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if (e.CommandName == "Dlt")
            {
                connection_sql obj = new connection_sql();
                obj.MakeConnection();
                SqlCommand cmd = new SqlCommand("DELETE FROM tbl_Topics  WHERE ID='" + e.CommandArgument + "' ", obj.conn);
                cmd.ExecuteNonQuery();
                obj.CloseConnection();
                GridFill(); 
                ScriptManager.RegisterStartupScript(this, GetType(), "set", "alert('Delete Successfully');", true);


            }
            else if (e.CommandName == "Edt")
            {
                connection_sql obj = new connection_sql();
                obj.MakeConnection();
                SqlCommand cmd = new SqlCommand("Select * FROM tbl_Topics WHERE ID='" + e.CommandArgument + "' ", obj.conn);
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                DataTable dt = new DataTable();
                da.Fill(dt);
                obj.CloseConnection();
               
                butSave.Text = "Update";
                ViewState["ID"] = e.CommandArgument;
                cmbCourseName.SelectedValue = dt.Rows[0]["course_ID"].ToString();
                getsubject();
                cmbSubjectName.SelectedValue = dt.Rows[0]["Subject_ID"].ToString();
                getUnit();
                cmbUnitName.SelectedValue = dt.Rows[0]["Unit_ID"].ToString();
                txtTopicName.Text = dt.Rows[0]["name"].ToString();
                ddlStatus.SelectedValue = dt.Rows[0]["Status"].ToString();
                
                

            }
        }

        protected void cmbUnitName_SelectedIndexChanged(object sender, EventArgs e)
        {
            GridFill();
        }      
    }
}