how can i create dynamicaly checkbox or checkboxlist in asp.net

[ashab27]

hi, i m asha bhatt.
plz look at this my code
i have declare this first :-

CheckBox chkList1; 
 protected void Page_Load(object sender, EventArgs e)
    {
    }
 protected void NextQuestionButton_Click(object sender, EventArgs e)
    {
        createcheckbox();
}
 public void createcheckbox()
    {
        Response.Write("asha");
        chkList1 = new CheckBox();

        chkList1.Text = "strCheckboxText";

        chkList1.ID = "Chk";

        chkList1.Font.Name = "Verdana";

        chkList1.Font.Size = 9; 

    }

I have button Next , when i will click on the next button then dynamically checkbox should create , which i cant do it.
Plz help me

[kvprajapati]

Choose page_load() event to add controls dynamically.

protected void Page_Load(object sender, EventArgs e)
    {
       CheckBox cx=new CheckBox();
       ...
       form1.Controls.Add(cx);
    }

[ashab27]

plz look at my code give me the solucation

protected void Page_Load(object sender, EventArgs e)
    {
         createcheckboxList();
}
public void createcheckboxList()
    {
        for (int i = 0; i < 4; i++)
        {
            //CheckBox chk = new CheckBox();
            ////chk.AutoPostBack = true;
            //chk.ID = "chk" + 1;
            //chk.Text = "asha";
            //chk.CheckedChanged += new EventHandler(chk_CheckedChanged);
            //Panel1.Controls.Add(chk);

            CheckBoxList chklist = new CheckBoxList();
            chklist.ID = "chklist" + 1;
            chklist.Text = "nitin";
            chklist.TextChanged += new EventHandler(chklist_TextChanged);
            Panel1.Controls.Add(chklist);

            
        }

    }

it giving me error.
Plz help me...................

[ashab27]

hi,
plz look at my code and give me the solution

using System.Data.SqlClient;
using System.Diagnostics;

public partial class Default2 : System.Web.UI.Page
{
    string scon = "Data Source=RBWORKSTATION2\\SQLEXPRESS;Initial Catalog=onlineexamdb;Integrated Security=True;MultipleActiveResultSets=true";
    SqlConnection con;
    SqlDataAdapter da;
    SqlCommand cmd;
    DataSet ds;
    static DataTable dt;
    IDataReader readqus;
    public string qus;
    static int count = 0;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            getquestion();
            NextQuestionButton_Click(sender, e);
        }
      
    }

    public string getquestion()
    {
        con = new SqlConnection(scon);
        con.Open();
        if (!IsPostBack)
        {
            cmd = new SqlCommand("SELECT  QusID , SubjectName , Question , Option1 ,Option2,Option3,Option4 from SubjectInfo INNER JOIN Questions ON SubjectInfo.SubID = Questions.SubID ", con);
            dt = new DataTable();
            readqus = cmd.ExecuteReader();
            if (readqus != null)
            {
                dt.Load(readqus);
            }
        }
        
        createcheckbox();
        con.Close();
        return "true";
       
    }
 public void createcheckbox()
    {
for (int intControlIndex = 0; intControlIndex < 4; intControlIndex++)
        {
            
            if (count < dt.Rows.Count)
            {
                chklist.ID = "chklist" + 1;
                chklist.Items.Add(new ListItem(dt.Rows[count][3].ToString()));
                //chklist.Attributes.Add("runat", "server");
                chklist.RepeatDirection = RepeatDirection.Vertical;
                chklist.TextChanged += new EventHandler(chklist_TextChanged);
                Panel1.Controls.Add(chklist);

                count = count + 1;
            }
            else
            {
                Response.Write("<script>alert('Your Test is finished')</script>");
            }
        } 
    }
 void chklist_TextChanged(object sender, EventArgs e)
    {
        Response.Write("Create CheckBoxList");
    }
protected void NextQuestionButton_Click(object sender, EventArgs e)
    {
     createcheckbox();
     try
        {
            if (count < dt.Rows.Count)
            {
                QuestionLabel.Text = dt.Rows[count][2].ToString();

                count = count + 1;
            }
            else
            {
                Response.Write("<script>alert('Your Test is finished')</script>");
            }

          }
        catch (IndexOutOfRangeException ex)
        {
          // Response.Write(ex.Message);
        }
    }

in my query i have option1 , 2 ,3 4. these options value i want show in checkboklist one by one means checkboxlist 1 will show option1 value , checkboxlist 2 will show option2 value , checkboxlist3 will show option3 value etc , but when i m doing this i m not getting correct output. it read but show only option1 value in all checkboxlist.

Plz help me..............

[kvprajapati]

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