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How to view data from a table with multiple rows

Posted on 2012-12-25
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Last Modified: 2012-12-28
I am using the code below to view countries in a table. How do I modify the code to use a next button to see all the countries in the table? The code below only displays the first record.

For Each xnDonor As Xml.XmlNode In xdDonor.SelectNodes("/Root/CountryTable[Country_ID='" & DonorID & "']")
                DonorID2 = xnDonor.SelectSingleNode("Country_ID").InnerText
                Name = xnDonor.SelectSingleNode("Country").InnerText
                dtDonor.Rows.Add({DonorID2, Name})
            Next
C1CountryOrigin.Text = dtDonor.Rows(0).Item("Country")
 
Thanks,

Victor
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Question by:vcharles
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LVL 17

Expert Comment

by:nepaluz
ID: 38721000
I assume C1CountryOrigin is a label or textbox, so to list all the records you will need to convert the values to a string.
on the other hand, if you want to display them in a combobox, simply set its datasource to the datatable, e.g ComboBox1.DataSource = dtDonor (you may want to set the DisplayMember and the value Member if you choose this route).
In the same way, if you want to display the rows in a datagrid (or even datagridview), simply set its datasource to the datatable, e.g DataGridView1.DataSource = dtDonor (in this case the columns will be autogenerated from the datatable)
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Author Comment

by:vcharles
ID: 38721010
Hi,

C1CountryOrigin  is a textbox, I need to see the data in the next row when I click on a Next button. What code do I use to see data in each fow?
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LVL 17

Accepted Solution

by:
nepaluz earned 2000 total points
ID: 38721015
declare a class wide integer variable as
Dim MyRowIndex As Integer = 0

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then in the click event of your Next button have this
MyRowIndex = if(MyRowIndex < dtDonor.Rows.Count - 1, MyRowIndex + 1, MyRowIndex)
C1CountryOrigin.Text = dtDonor.Rows(MyRowIndex).Item("Country")

Open in new window

And you can have the Previous button have:
MyRowIndex = if(MyRowIndex = 0 , 0, MyRowIndex - 1)
C1CountryOrigin.Text = dtDonor.Rows(MyRowIndex).Item("Country")

Open in new window

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LVL 17

Expert Comment

by:nepaluz
ID: 38721181
Edited above to assign value to textbox.
Did that answer your question?
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Author Comment

by:vcharles
ID: 38721808
Hi,

Juast read your post, will test it and get back to you.

Thanks,

Victor
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Author Comment

by:vcharles
ID: 38721854
It worked! How do you move to first and last record?
Thanks,
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Author Closing Comment

by:vcharles
ID: 38726814
Thank You!
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