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8.2

java script  hide show row of table

Asked by eteran in Active Server Pages (ASP)

Tags: javascript hide/ show

Hi ,
  I am creating table at run time using add control to place holder .
  and i am trying to show/ hide table row by javascript , It java script is giving object error .  
 while i try to set value of other controls it is working fine .
 I am unable to understand what it wrong in it .   
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java script 
function hiden_row(var_name)
{
alert (var_name) ; 
try{
 
        var status_display = document.getElementById(var_name).style;
         if (status_display=="none")
         {
          document.getElementById(var_name).style.display="block";
         }
         else
         {
          document.getElementById(var_name).style.display="none"; 
         }
 }
 catch(err)
 {
 alert(err.description);
 }
}
 
c# code for create  table 
private void _create_form1()
    {
        // ListBox list = (ListBox)Session["contracts"];
        // PlaceHolder1.Controls.Clear(); 
        DataTable answerTable = new DataTable();
        query = "select *  from      answer_master  where  user_id =" + user_ID;
        answerTable = DBHelper.getTable(query);
        answerTable.PrimaryKey = new DataColumn[] { answerTable.Columns["Field_ID"] };
 
        for (int i = 0; i < list.Items.Count; i++)
        {
 
 
            if (QuickView)
                query = "select *  from  Field_master fm join  contract_field cf on fm.Field_id = cf.field_id   where  contract_id = " + list.Items[i].Value + " and hidden_by_admin = 0 and quick_view = 1  order by cf.Field_order ";
            else
                query = "select *  from  Field_master fm join  contract_field cf on fm.Field_id = cf.field_id   where  contract_id = " + list.Items[i].Value + " and hidden_by_admin = 0 order by cf.Field_order ";
 
            //if (QuickView)
            //    query = "select *  from  Field_master fm  join    answer_master am on  am.field_id = fm.field_id  join contract_field cf on fm.Field_id = cf.field_id where  contract_id = " + list.Items[i].Value + " and hidden_by_admin = 0 and quick_view = 1 and  am.user_id =" + user_ID + " order by cf.Field_order ";
            //else
            //    query = "select *  from  Field_master fm  join    answer_master am on  am.field_id = fm.field_id  join contract_field cf on fm.Field_id = cf.field_id where  contract_id = " + list.Items[i].Value + " and hidden_by_admin = 0 and   am.user_id =" + user_ID + " order by cf.Field_order ";
            DataTable fieldTable = new DataTable();
            fieldTable = DBHelper.getTable(query);
 
            DataRow drAnswer; //
            try
            {
 
 
                Label lbName = new Label();
                lbName.Text = "Field Question";
                lbName.Width = 200;
                Label lbType = new Label();
                lbType.Text = "Field Answer";
                lbType.Width = 100;
 
                if (i == 0)
                {
                    PlaceHolder1.Controls.Add(new LiteralControl("<table style=width:100%;   border = 1 bgcolor = InactiveCaptionText  ) ><tr bgcolor = Aqua><td  >Contract Name </td><td>"));
                    PlaceHolder1.Controls.Add(new LiteralControl(user_contract_name));
                    PlaceHolder1.Controls.Add(new LiteralControl("</td></tr> "));
                    PlaceHolder1.Controls.Add(new LiteralControl(" <tr><td>"));
 
 
                    PlaceHolder1.Controls.Add(lbName);
                    PlaceHolder1.Controls.Add(new LiteralControl("</td><td>"));
                    PlaceHolder1.Controls.Add(lbType);
                    PlaceHolder1.Controls.Add(new LiteralControl("</td></tr>"));
                }
 
 
                string question = string.Empty;
                string javascript = string.Empty;
                string answer = string.Empty;
                foreach (DataRow dr in fieldTable.Rows)
                {
 
                    int type = Convert.ToInt32(dr["Field_type"].ToString());
                    question = dr["Field_Question"].ToString();
                    if (string.IsNullOrEmpty(question))
                        question = dr["Field_Name"].ToString();
                    javascript = dr["Field_Javascript"].ToString();
                    javascript = javascript.Replace("field123", "document.getElementById('" + dr["Field_Name"].ToString() + "')");
                    drAnswer = answerTable.Rows.Find(dr["Field_ID"].ToString());
                    if (drAnswer != null)
                        answer = drAnswer["answer"].ToString();
                    if (type == 4)
                    {
                        TextBox tb = new TextBox();
                        tb.ID = dr["Field_Name"].ToString();
                        if (!String.IsNullOrEmpty(javascript))
                            tb.Attributes.Add("onBlur", "javacript:" + javascript);
                        tb.Width = 200;
                        if (!string.IsNullOrEmpty(answer))
                            tb.Text = answer;
                        Control c = PlaceHolder1.FindControl(tb.ID);
                        if (c == null)
                        {
                            PlaceHolder1.Controls.Add(new LiteralControl("<tr id= tr_" + dr["Field_Name"].ToString() + " ><td ><a href=pdfpopup.aspx?contract_id=" + list.Items[i].Value + "&Field_Name=" + dr["Field_Name"].ToString() + ">" + question + "</a></td><td>"));
 
                            PlaceHolder1.Controls.Add(tb);
                            PlaceHolder1.Controls.Add(new LiteralControl("</td></tr>"));
                        }
                    }
                    else
                    {
                        CheckBox cb = new CheckBox();
                        cb.ID = dr["Field_Name"].ToString();
                        if (!String.IsNullOrEmpty(javascript))
                            cb.Attributes.Add("onclick", "javacript:" + javascript);
 
                        if (!string.IsNullOrEmpty(answer))
                            if (answer.ToLower() == "yes")
                                cb.Checked = true;
 
                        Control c = PlaceHolder1.FindControl(cb.ID);
                        if (c == null)
                        {
                            PlaceHolder1.Controls.Add(new LiteralControl("<tr id= tr_" + dr["Field_Name"].ToString() + " ><td ><a href=pdfpopup.aspx?contract_id=" + list.Items[i].Value + "&Field_Name=" + dr["Field_Name"].ToString() + ">" + question + "</a></td><td>"));
                            //    PlaceHolder1.Controls.Add(new LiteralControl("<tr><td>" + question + "</td><td>"));
                            PlaceHolder1.Controls.Add(cb);
                            PlaceHolder1.Controls.Add(new LiteralControl("</td></tr>"));
                        }
                    }
                    //PlaceHolder1.Controls.Add(new LiteralControl("<a href=pdfpopup.aspx?contract_id="+list.Items[i].Value+"&Field_Name=" + dr["Field_Name"].ToString()+ ">" + dr["Field_Name"].ToString()+"</a></td>"));
 
 
                    PlaceHolder1.Controls.Add(new LiteralControl("</tr>"));
                    question = string.Empty;
                }
 
 
            }
            catch (Exception ex)
            {
                // Response.Write(ex.Message + "\r\n" + ex.StackTrace);
            }
            finally { }
            if (i == (list.Items.Count - 1))
                PlaceHolder1.Controls.Add(new LiteralControl("</table>"));
        }
    }
 
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[+][-]03/13/09 09:07 AM, ID: 23880805Accepted Solution

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About this solution

Zone: Active Server Pages (ASP)
Tags: javascript hide/ show
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Solution Provided By: sybe
Participating Experts: 1
Solution Grade: A
 
 
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