Displaying the data in gridview if selected all form drop down list

<%@ Page Title="" Language="C#" 
MasterPageFile="~/MasterPage.master" AutoEventWireup="true" 
CodeFile="BatchUSer.aspx.cs" Inherits="Default2" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

   <div id="main" style="background-color: #E2E6E9;">     
      <center> <h3>REVIEW WORKS</h3></center>
        <table id="tblmodule" style="background-color: #E2E6E9; height: 100%; width: 901px;">
             <tr>
                <td  style="text-align: right; width: 260px;">

                   <label><strong>Select 
Batch</strong></label><asp:Label ID="lblBatchErr" 
runat="server" Text="*" ForeColor="Red" /></td>
                <td  style="text-align: left; width: 99px;">

                    <asp:DropDownList ID="ddlbatchname" 
runat="server" 
OnSelectedIndexChanged="ddlbatchname_SelectedIndexChanged" Width="120px"
 AutoPostBack="true" style="margin-left: 
0px"></asp:DropDownList>
                </td>
                <td  style="text-align: right; width: 117px;" colspan="2">

                   <label><strong>Select 
User</strong></label><asp:Label ID="lblusererr" 
runat="server" Text="*" ForeColor="Red" /></td>
                <td  style="text-align: left; width: 159px;" colspan="2">
                    <asp:DropDownList ID="ddluser" runat="server" AutoPostBack="true" Width="120px" >
                    </asp:DropDownList>
                </td>
                  <td  style="text-align: right; height: 22px; width: 99px;">

                   
<label><strong>Status</strong></label><asp:Label
 ID="Label1" runat="server" Text="*" ForeColor="Red" />
                </td>
                  <td  style="text-align: right; height: 22px; width: 99px;">

                    <asp:DropDownList ID="ddlstatus" runat="server" 
AutoPostBack="true" Width="120px" style="margin-left: 5px" 
OnSelectedIndexChanged="ddlstatus_SelectedIndexChanged" >
                        <asp:ListItem Value="0">--Select--</asp:ListItem>
                        <asp:ListItem Value="1">Done</asp:ListItem>
                        <asp:ListItem Value="2">Not Done</asp:ListItem>
                      </asp:DropDownList>
                </td>
                <td  style="text-align: left">
                    <asp:Button ID="btngo" runat="server" OnClick="btngo_Click" Text="GO" style="margin-left: 0px"/>
                
                </td>
            </tr>
            <tr>
                <td  style="text-align: center; height: 24px;" colspan="3">
                    </td>
                <td  style="text-align: center; height: 24px;" colspan="2">
                    </td>
                <td  style="text-align: left; height: 24px;" colspan="2">
                    <asp:Label ID="lblerrmsg" runat="server" ForeColor="Red"></asp:Label>
                    </td>

                <td>  <strong>  <asp:Label 
ID="lblmandatory" runat="server" Text="*Fields are mandatory" 
ForeColor="Red"></asp:Label></strong></td>
            </tr>

            <tr>
                <td  colspan="7">

                    <asp:GridView ID="grdbatch" runat="server" 
Width="100%" CssClass="mydatagrid" HeaderStyle-CssClass="header" 
OnRowDataBound="grdbatch_RowDataBound" RowStyle-CssClass="rows" 
AutoGenerateColumns="false" 
                      PageSize="10" 
OnPageIndexChanging="grdbatch_PageIndexChanging" AllowPaging="true"  
EmptyDataText="No Records Available">
                        <Columns>
                             <asp:TemplateField HeaderText="S.No." Visible="false">
                             <ItemTemplate>

                                     <asp:Label ID="lblID" 
runat="server" Text='<%#Bind("ReviewStatus") 
%>'></asp:Label>
                            </ItemTemplate>
                            </asp:TemplateField>
                            <asp:BoundField DataField="CreatedDate" HeaderText="Date" />
                            <asp:BoundField DataField="UserID" HeaderText="Trainee" />
                             <asp:BoundField DataField="AuditoName" HeaderText="AudioName" />
                            <asp:BoundField DataField="LineCount" HeaderText="LineCount" />

                            <asp:HyperLinkField 
DataTextField="HyperLink" DataNavigateUrlFields="AudioID,UserID" 
DataNavigateUrlFormatString="~/QaMarks.aspx?AudioID={0}&UserId={1}" 
HeaderText="Status" ItemStyle-Width = "150" />                       
       
                        </Columns>
                    </asp:GridView>
                   </td>
            </tr>

            <tr>
                <td  style=" text-align: right" colspan="7">
                     </td>
            </tr>

   </table>
       </div>
</asp:Content>

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

public partial class Default2 : System.Web.UI.Page
{
    Admin adm;
    SqlConnection con = new SqlConnection(@"server=EHSD208; user id=sa; password=Access#123;database=MTTrainingTest");
    protected void Page_Load(object sender, EventArgs e)
    {
        lblerrmsg.Text = "";
        if (!Page.IsPostBack)
        {
            batch();         
        }
    }
    protected void batch()
    {
        SqlCommand cmd = new SqlCommand("select * from Batches ORDER BY  ID", con);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataTable dt = new DataTable();
        da.Fill(dt);
        ddlbatchname.DataSource = dt;
        ddlbatchname.DataTextField = "BatchNo";
        ddlbatchname.DataValueField = "ID";
        ddlbatchname.DataBind();
        ddlbatchname.Items.Insert(0, new ListItem("-- Select --", "0"));
        ddluser.Items.Insert(0, new ListItem("-- Select --", "0"));
    }
        protected void ddlbatchname_SelectedIndexChanged(object sender, EventArgs e)    
        { 
            lblerrmsg.Text = "";
            int ModuleId = int.Parse(ddlbatchname.SelectedItem.Value);
            if (ModuleId > 0)
            {

                //string query = string.Format("select EmpID, UserID 
from Users where BatchName = {0} and state=1", "'"+ModuleId+"'");
   
             string query = string.Format("select EmpID, UserID from 
Users where BatchName = {0} and state=1", "'" + ModuleId + "'");
                BindDropDownList(ddluser, query, "UserID", "EmpID", "--Select--","ALL");
            }
            else
            {

                string query = string.Format("select EmpID, UserID from 
Users where BatchName = {0} and state=1", "'" + ModuleId + "'");
                BindDropDownList(ddluser, query, "UserID", "EmpID", "---Select---","ALL");
            }
        }
    private void BindDropDownList(DropDownList ddl, string query, string text, string value, string defaultText,string DEfault)
        {
            lblerrmsg.Text = "";
            con.Open();
            SqlCommand cmd = new SqlCommand(query, con);
            using (SqlDataAdapter sda = new SqlDataAdapter())
            {
                cmd.Connection = con;
                ddl.DataSource = cmd.ExecuteReader();
                ddl.DataTextField = text;
                ddl.DataValueField = value;
                ddl.DataBind();
                con.Close();
            }
        ddl.Items.Insert(0, new ListItem(defaultText, "1"));
        ddl.Items.Insert(0, new ListItem(DEfault, "0"));
    }

    public void Bindgrid()
    {
        lblerrmsg.Text = "";

        string query = "select  
Mts.LineCount,Mts.AudioID,Mts.ReviewStatus,convert(varchar(10), 
mts.CreatedDate,101) as CreatedDate,u.UserID,si.AuditoName from 
MTWorkStatus Mts,users u,subjectItems si where " +
        
"u.BatchName='" + ddlbatchname.SelectedValue + "' and u.empid='" + 
ddluser.SelectedValue + "' and mts.TraineeID=u.Empid and  si.ID= 
Mts.AudioID";
        SqlCommand cmd = new SqlCommand(query, con);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataTable dt = new DataTable();
        da.Fill(dt);
        dt.Columns.Add("HyperLink", typeof(string));
        //  dtfill.Columns.Add("httppath", typeof(string));
        foreach (DataRow row in dt.Rows)
        {
            row["HyperLink"] = "NOT DONE";
        }
        for (int i = 0; i <= dt.Rows.Count - 1; i++)
        {
            string ReviewStatus = dt.Rows[i]["ReviewStatus"].ToString();
            if (ReviewStatus == "True")
            {
                dt.Rows[i]["HyperLink"] = "DONE";
            }
        }
        dt.AcceptChanges();
        grdbatch.DataSource = dt;
        grdbatch.DataBind();
    }
    protected void ddluser_SelectedIndexChanged(object sender, EventArgs e)
    {
        lblerrmsg.Text = "";

    }
    protected void grdbatch_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        lblerrmsg.Text = "";
        Bindgrid();
        grdbatch.PageIndex = e.NewPageIndex;
        grdbatch.DataBind();
    }
    protected void btngo_Click(object sender, EventArgs e)
    {
        lblerrmsg.Text = "";
        if (ddlbatchname.SelectedValue == "0" && ddluser.SelectedValue == "0")
        {
            lblerrmsg.Text = "Please Enter (*) Fields";
            return;
        }
        if (ddlbatchname.SelectedValue == "0")
        {
            lblerrmsg.Text = "Please Select Batch";
            return;
        }
        if (ddluser.SelectedValue == "0")
        {
            lblerrmsg.Text = "Please Select User";
            return;
        }
        Bindgrid();
    }
    protected void grdbatch_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        foreach (TableCell tc in e.Row.Cells)
        {
            tc.BorderStyle = BorderStyle.None;
            tc.BorderWidth = 0;
            tc.BorderColor = System.Drawing.Color.Transparent;
        }
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            Label lblID = (Label)e.Row.FindControl("lblID");

            string qry = "SELECT m.AudioID, m.Completed,m.ReviewStatus 
FROM MTWorkStatus m ,  SubjectItems  s where m.Completed='True' and 
m.ReviewStatus='True' and m.cretedby='" + ddluser.SelectedItem.Text + 
"'";
            SqlCommand cmd = new SqlCommand(qry, con);
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            DataTable dt = new DataTable();
            da.Fill(dt);
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                string status = dt.Rows[i]["ReviewStatus"].ToString();
                if (lblID.Text == status)
                {
                    e.Row.BackColor = System.Drawing.Color.LightGray;
                    e.Row.Enabled = false;
                    e.Row.ToolTip = "This Record is Completed";
                }
            }
        }
    }
    protected void ddlstatus_SelectedIndexChanged(object sender, EventArgs e)
    {

    }
}

Below is my code with two drop downs one for selecting the batch and other for selecting the user now to this i had added another drop down named status with done and not done when user selects batch corresponding users that are belonging to that batch are displayed in second drop down to this list i had to add another one name named all when user selects all after selecting batchs all the users data should be displayed if we select all below is my aspx and code behind and if the selected status is done only the records that are done should be displayed in gridview and if the selected status is notdone only the records that are notdone should be displayed in gridview can any one please help me out its urgent

Now when user selects All from second dropdown and status as done from third drop down all the users in that batch with their status done should be displayed in gridview when selected not done all the user with their status notdone should be displayed in gridview if selected only particular user and done or not done they should be displayed how can i do this

Is this related to Tumult Hype? It sounds like an ASP.NET question; you might have better luck in Microsoft’s forums or Stack Overflow.