selecting multiple records in checkbox

[mirainc]

hey all..

i have a gridview with a checkbox in ItemTemplate..
what i have already done is when i select any checkbox, it will direct me to another page.
That other page contains a reminder letter in which i can just print it..

But now i want to be able to select several checkbox and just print those letters..

How can i achieve this?
using VB.NET

[Curtis Rutland]

Perhaps you can add the link or whatever key value each entry is based off of to an array or list. Then add that list to a session variable. Then redirect to another page that loops through the array, and renders each of the "reminders" or whatever on a single page for you to print.

That's probably what I'd do. Considering I haven't seen your code. It's kind of a vague question.

[mirainc]

Perhaps you can add the link or whatever key value each entry is based off of to an array or list. Then add that list to a session variable. Then redirect to another page that loops through the array, and renders each of the "reminders" or whatever on a single page for you to print.

That's probably what I'd do. Considering I haven't seen your code. It's kind of a vague question.

//Destination page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        'AddressEcc labels
        Label10.Text = Request.QueryString("Name")
        Label11.Text = "Admission No: " + Request.QueryString("Adm_No")
        'Display the value of Hidden column in a label control
        Label12.Text = Request.QueryString("TermAdd1")
        Label13.Text = Request.QueryString("TermAdd2")
        Label14.Text = Request.QueryString("TermCountry") + " " + Request.QueryString("TermPostCo")
        Label27.Text = Request.QueryString("TermAdd3")

//Source page
Protected Sub CheckBox1_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim gvr As GridViewRow = DirectCast(DirectCast(sender, CheckBox).Parent.Parent, GridViewRow)
        Dim cb As CheckBox = DirectCast(sender, CheckBox)
        Dim row As GridViewRow = DirectCast(cb.NamingContainer, GridViewRow)
        If row IsNot Nothing Then
            Dim key As String = AddressGridView.DataKeyNames(0)
            Dim TermAdd1 As String = DirectCast(AddressGridView.DataKeys(row.RowIndex).Values("TermAdd1"), String)
            Dim TermAdd2 As String = DirectCast(AddressGridView.DataKeys(row.RowIndex).Values("TermAdd2"), String)
            Dim TermAdd3 As String = DirectCast(AddressGridView.DataKeys(row.RowIndex).Values("TermAdd3"), String)
            Dim TermCountry As String = DirectCast(AddressGridView.DataKeys(row.RowIndex).Values("TermCountry"), String)
            Dim TermPostCo As String = DirectCast(AddressGridView.DataKeys(row.RowIndex).Values("TermPostCo"), String)
 
            Dim Adm_No As String = gvr.Cells(2).Text
            Dim Name As String = gvr.Cells(3).Text
            Response.Redirect("~\Reminder letter\ReminderLetter(ECC-BULK).aspx?Adm_No=" + Adm_No + "&Name=" + Name + "&TermAdd1=" + TermAdd1 + "&TermAdd2=" + TermAdd2 + "&TermCountry=" + TermCountry + "&TermPostCo=" + TermPostCo + "&TermAdd3=" + TermAdd3)
        End If
 
    End Sub

can guide on using the array in VB.NET?

[Curtis Rutland]

Well, you might have to write another destination page. Can you get all the data again from a key value in the gridview? If you can, that makes this pretty easy. If not, it will be a little bit more work.

It's going to take some changing. You can't do auto post back on your checkboxes. You need to add a button to click when you've selected the check boxes you want.

Then, in that button's event:
If you have some key data, like an id number or something, just use a List. Make sure you put

Imports System.Collections.Generic
 

at the very top of the code. Then use a List:

Dim lst as List(of Int32)
 

and loop through your gridveiw, adding the key value to the list each time.

Then add the list to a session variable, and on your destination page, loop through it to build a sql statement to select the rows you need. You can use a repeater to display each row.