search record from database and display value in textbox and drop downlist

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hi every one ;
here is code of search button. when i search the record of student then value are displayed in text fields but not in dropdownnlist. what is the reason? i am beginner in asp.net.
please guide me as soon as possible..
thanks in advance..

C#

SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=D:\Final Project\FinalProject\FinalProject\App_Data\Record.mdf;Integrated Security=True;User Instance=True");
           try
           {
               string query = "select * from student where StdId='" + txtID.Text + "'";
               SqlCommand com = new SqlCommand(query, con);
               SqlDataReader reader = null;

               con.Open();
               reader = com.ExecuteReader();
              if (reader.Read())
               {
                 txtfirstname.Text = reader.GetValue(3).ToString();
                 txtlastname.Text = reader.GetValue(4).ToString();
                 txtfaname.Text = reader.GetValue(5).ToString();
                 txtfcellno.Text = reader.GetValue(6).ToString();
                 txtfnic.Text = reader.GetValue(7).ToString();
                 txthome.Text = reader.GetValue(8).ToString();

                 drpclassno.Text = reader.GetValue(9).ToString();
                 drpgender.Text = reader.GetValue(10).ToString();
                 drpday.Text = reader.GetValue(11).ToString();
                 drpmonth.Text = reader.GetValue(12).ToString();
                 drpyear.Text = reader.GetValue(13).ToString();
               }
              else
              {
                  lblmsg.Text = "Record was not Found...!";
              }

Posted 20-Feb-13 19:46pm

Wajid Khaksar

Updated 30-Jan-20 9:13am

Orcun Iyigun

v2

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3 solutions

Solution 3

rewrite ur code
drpclassno.Text = reader.GetValue(9).ToString();

as

SQL

drpclassno.SelectedIndex = drpclassno.Items.IndexOf(drpclassno.Items.FindByText(reader.GetValue(9).ToString()));

and
drpgender.Text = reader.GetValue(10).ToString();
as
drpgender.SelectedIndex = drpgender.Items.IndexOf(drpgender.Items.FindByText(reader.GetValue(10).ToString()));

and
drpday.Text = reader.GetValue(11).ToString();
as

drpday.SelectedIndex = drpday.Items.IndexOf(drpday.Items.FindByText(reader.GetValue(11).ToString()));

and
drpmonth.Text = reader.GetValue(12).ToString();
as

drpmonth.SelectedIndex = drpmonth.Items.IndexOf(drpmonth.Items.FindByText(reader.GetValue(12).ToString()));

and
drpyear.Text = reader.GetValue(13).ToString();
as
drpyear.SelectedIndex = drpyear.Items.IndexOf(drpyear.Items.FindByText(reader.GetValue(13).ToString()));

Make sure that your all dropdown have some text binded to them earlier so that you can items in dropdown by their text property.

happy coding
:)

Posted 20-Feb-13 20:15pm

Ksh_Sr

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**Orcun Iyigun** · Accepted Answer · 2013-02-20T20:10:00

Well you have two options either you keep what you do but instead of assigning the text assign the selected index by looping through the dropdown items.

C#

foreach(ListItem ltItem in DropDownList1.Items)
{
 if(ltItem.Value == yourValue)
   DropDownList1.SelectedIndex = ltItem.Index;
}

-OR-

Bind your dropdown with a datasource which takes txtID.Text as a parameter. See examples from the links:
Link1[^]
Link2[^]

Good luck,
OI

sandeep207 · Accepted Answer · 2013-02-20T20:14:00

First you need to bind dropdownlist with database records
Sample

C#

SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=D:\Final Project\FinalProject\FinalProject\App_Data\Record.mdf;Integrated Security=True;User Instance=True");
            try
            {
            string query = "select Value1,Value2 from Table";
            SqlDataAdapter adp= new SqlDataAdapter (query, con);
           con.Open();
           DataSet dt=new DataSet();
           adp.Fill(ds);
           drpclassno.DataSource=ds;
           drpclassno.DataTextField="Value1"
           drpclassno.DataValueField="Value2"
           drpclassno.DataBind();

After binding to select record from database you need to write this

C#

DropDownList1.Items.FindByText(reader.GetValue(9).ToString());

Please let me know if this helps you

search record from database and display value in textbox and drop downlist

3 solutions

Solution 1

Solution 3

Solution 2

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