How to give DataValueField and DataTextField when using datareader to fill values in dropdownlist

Question

0.00/5 (No votes)

See more:

Hi,

I used this code. but i cant get its datavaluefield in where condition to another query. Any one plz can help me.

VB

cmdq2.Dispose()
cmdq2.Parameters.Clear()
cmdq2.Connection = con
cmdq2.CommandType = CommandType.StoredProcedure
cmdq2.CommandText = "sp_inout"

cmdq2.Parameters.Add("@companyid", SqlDbType.BigInt).Value = Session("maincompanyid")
cmdq2.Parameters.Add("@contactid", SqlDbType.BigInt).Value = Session("Customer_id")
cmdq2.Parameters.Add("@invoiceid", SqlDbType.Int).Value = cash_invid
cmdq2.Parameters.Add("@currency", SqlDbType.Char).Value = currency
'****************
Dim idr As SqlDataReader = cmdq2.ExecuteReader()


If idr.Read Then
    If idr.HasRows = True Then

        ddlinv.Items.Add(idr(1).ToString())
        ddlinvid = idr(0).ToString
        ddlinv.DataValueField = idr(0).ToString()
        ddlinv.DataTextField = idr(1).ToString()
        idr.Close()
    Else

    End If
End If

Posted 10-Apr-11 20:02pm

Jayanthi Muthusamy

Add a Solution

2 solutions

Solution 2

I tried this coding. Its working well.

VB

cmdq2.Dispose()
                    cmdq2.Parameters.Clear()
                    cmdq2.Connection = con
                    cmdq2.CommandType = CommandType.StoredProcedure
                    cmdq2.CommandText = "sp_inout"

                    cmdq2.Parameters.Add("@companyid", SqlDbType.BigInt).Value = Session("maincompanyid")
                    cmdq2.Parameters.Add("@contactid", SqlDbType.BigInt).Value = Session("Customer_id")
                    cmdq2.Parameters.Add("@invoiceid", SqlDbType.Int).Value = cash_invid
                    cmdq2.Parameters.Add("@currency", SqlDbType.Char).Value = currency
                    'Using Datareader to set DatavalueField and Datatextfield
                    Dim idr As SqlDataReader = cmdq2.ExecuteReader()
                    If idr.Read() Then
                        Dim item As ListItem = New ListItem()
                        item.Text = idr("invoiceno").ToString()
                        item.Value = idr("invoiceid").ToString()
                        ddlinv.Items.Add(item)
                    End If

Posted 10-Apr-11 21:37pm

Jayanthi Muthusamy

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Mahendra.p25 · Accepted Answer · 2011-04-10T20:11:00

Solution 1

use DataSet instead Of DataReader because it is disconnected Source of architecture

and then

VB

Con = New SqlConnection("Your ConnectionString")
Con.Open()
Cmd = New SqlCommand("Select * from Products")
dt = New SqlDataAdapter("Select ProductId,ProductName+ProductPrice as Name from    Products", Con)
' Using System.Data;
Dim ds As New DataSet()
'FillDataSet
dt.Fill(ds)
'Bind Drodown
DropDownList1.DataSource = ds
DropDownList1.DataTextField = Convert.ToString(ds.Tables(0).Rows(0)("Name"))
DropDownList1.DataValueField = Convert.ToString(ds.Tables(0).Rows(0)("Id"))
DropDownList1.DataBind()
Con.Close()

Posted 10-Apr-11 20:11pm

Mahendra.p25

Comments

Jayanthi Muthusamy 11-Apr-11 2:21am

Thanks for ur immediate reply. I'm using this process within while loop. So if i use dataset concept i cant get row by row results. thats y i used datareader. Is there any possibility to set these properties in datareader? Could u plz help me?

Mahendra.p25 11-Apr-11 2:26am

try this link

http://bytes.com/topic/c-sharp/answers/230640-dropdownlist-sqldatareader

Jayanthi Muthusamy 11-Apr-11 3:40am

Hi Mahen,
Thanks to consider my post. I got answer to this problem. We can set DataValueField and DataTextfield property when using datareader. If u see my doubts plz help me. Thanks a lot.