read data from multidropdownlist

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hi, i have a multidropdown using multidropdown.dll.This is storing data successfully.But the problem is when i want to read data from database to show a particular users data in the multidropdown , i dont know which method i should apply...
i have some textboxes and they show data successfully...but what about the multidropwon...???
code is:

C#

SqlDataReader dr = cmd1.ExecuteReader();
while (dr.Read())
{
    TextBoxdob.Text = dr["DateOfBirth"].ToString();    
    MultiDropDown1........= dr["Column_name"].ToString();
}

Posted 24-Jul-12 0:55am

symonsarwar

Updated 24-Jul-12 1:05am

_Amy

v2

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Comments

Rockstar_ 24-Jul-12 7:06am

what is this multidropdown? may i know please....

Sandeep Mewara 24-Jul-12 7:27am

Which ajaxtoolkit control? I am not sure if we have any multidropdown there!

symonsarwar 24-Jul-12 7:34am

check this:

http://www.codeproject.com/Articles/219977/MultiDropDown-A-multiple-selection-Dropdown-contro

Sandeep Mewara 24-Jul-12 8:08am

Thats NOT ajax toolkit control.

Rockstar_ 24-Jul-12 7:34am

ok

Rockstar_ 24-Jul-12 7:34am

it is a multi selection drop down list

Rockstar_ 24-Jul-12 7:37am

Instead of storing dropdownlist text, store dropdownlist value with seperated by commas in same column, now when displaying, attach the columns and select the text which are in the database column.

Roshani Dhamse 10-May-13 4:26am

I am binding data to multidropdown from mysql database based on selection of another dropdownlist. Data is able to assigned to multidropdown but not displaying on front end.

2 solutions

Solution 1

Try the code, similar to the following one.

C#

SqlDataReader dr = cmd1.ExecuteReader();
DataTable dt1 = new DataTable();
dt1.Columns.Add(new DataColumn("Name", typeof(System.String)));
while (dr.Read())
{
    dt1.Rows.Add(new string[] { dr["Column_name"].ToString()  });
}
MultiDropDown1.DataSource = dt1;
MultiDropdown1.DataTextField = "Name";
MultiDropdown1.DataValueField = "Name";

Posted 25-Jul-12 1:51am

Prasad J

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graciax8 · Accepted Answer · 2012-07-25T15:47:00

Solution 2

you should do something like this.

C#

DataTable dt1 = new DataTable();
dt1.Columns.Add(new DataColumn("ColName", typeof(System.String)));
dt1.Columns.Add(new DataColumn("ColId", typeof(System.String)));
.
.
.
SqlDataReader dr = cmd1.ExecuteReader();
while (dr.Read())
{
    TextBoxdob.Text = dr["DateOfBirth"].ToString();    
    dt1.Rows.Add(new string[] { dr["ColName"].ToString(),dr["ColId"].ToString()  });
}

MultiDropDown1.DataSource = dt1;
MultiDropdown1.DataTextField = "ColName";
MultiDropdown1.DataValueField = "ColId";

better post your codes.

Posted 25-Jul-12 15:47pm

graciax8

Comments

graciax8 26-Jul-12 22:25pm

SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
string Sql = "SELECT * FROM Reg WHERE UserName = @UserName";
SqlCommand myCommand = new SqlCommand(Sql, myConnection);
myCommand.CommandType = CommandType.Text;
myCommand.Parameters.AddWithValue("@UserName",Label1.Text);

DataSet ds = new DataSet();
SqlDataAdapter ad = new SqlDataAdapter();
ad.SelectCommand = myCommand;
myConnection.Open();
ad.Fill(ds, "a");
DataTable dt = DataSet.Tables[0];

foreach (DataRow dr in dt.Rows)
{
TextBoxdob.Text = dr["DateOfBirth"].ToString();
}

MultiDropDown1.DataSource = dt;
MultiDropdown1.DataTextField = "Column_Name"; //column you want to display
MultiDropdown1.DataValueField = "Column_ID"; //id of that column

myConnection.Close();

symonsarwar 15-Sep-12 15:43pm

its working for textbox. but want to show data in the multidropdown1 not in the textboxdob.text....please help...its so close...@gracia8xx

graciax8 16-Sep-12 23:08pm

try this one

foreach (DataRow dr in dt.Rows)
{
MultiDropdown1.Items.Add(dr["DateOfBirth"].ToString());
}

symonsarwar 18-Sep-12 14:24pm

gives error in "items"...@grcia8xx

graciax8 18-Sep-12 21:23pm

DataTable myTable = DataSet.Tables[0];

MultiDropDown1.DataSource = myTable;
MultiDropDown1.DataTextField = "DateOfBirth";
MultiDropdown1.DataValueField = "Column_ID"; //id of that column

MultiDropDown1.DataBind();

Please mark as answered, if this help you.

symonsarwar 21-Sep-12 15:48pm

not working...

Member 9092122 22-Oct-12 3:03am

MultiDropDown is not binding on SelectedIndexChangedm of another Dropdownlist..pls help