Listbox Data Extract After Data Entry & Sort

Sep 26, 2011

I have an application that receives data input from an automated set of devices. This data stream I have managed to capture & get it into a list box which I can sort based on the Device ID & the time that the response was received.There is a set time window for the devices to transmit their data into the application and during this each device is not limited to the number of responses it can send (ie :- Device 1 can send in 2 responses where Device 3 can send in 40 responses, etc).All of the responses are captured, listed & sorted within the listbox (this bit is working ).I now need to extract the last (ie:- latest) entry in the listbox for each Device ID & this is where I am stuck. I can retrieve the last item in the list but cant seem to extract the last item for each Device ID.[code]

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VS 2010 Listbox Data Extract After Entry & Sorting?

Sep 26, 2011

I have an application that receives data input from an automated set of devices. This data stream I have managed to capture & get it into a list box which I can sort based on the Device ID & the time that the response was received.There is a set time window for the devices to transmit their data into the application and during this each device is not limited to the number of responses it can send (ie :- Device 1 can send in 2 responses where Device 3 can send in 40 responses, etc).All of the responses are captured, listed & sorted within the listbox (this bit is working ).I now need to extract the last (ie:- latest) entry in the listbox for each Device ID & this is where I am stuck. I can retrieve the last item in the list but cant seem to extract the last item for each Device ID.The code that I am using for the Device response capture, etc is :-

*********Code Start
Private Sub btnPoll_Click(ByVal sender As System.Object, ByVal e As_ System.EventArgs) Handles btnPoll.Click

[code].....

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How to sort data in ListBox?

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Mar 29, 2011

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May 24, 2012

I have this XML file from which I'm grabbing all the data:

<?xml version="1.0" encoding="utf-8"?>
<Tabel>
<Member>

[code].....

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CODE:

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Feb 10, 2012

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May 7, 2012

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Private Sub MainForm_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'CompanyDataSet.Contacts' table. You can move,

[code].....

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Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) _
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Incorrect coding?:

ListBox1.Items(inc) = ds.Tables("TTDB").Rows(inc).Item("ChildName") -

Error Message:

InvalidArgument=Value of '0' is not valid for 'index'. Parameter name: index

[code]....

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Which Control I Use To As A Table Data Entry?

Feb 13, 2011

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ComboBox Selected Index For Data Entry

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I am using vb 2008, DataBound Controls and typed dataset. My form is having Group Box (initially hidden) and some text box, combobox controls for Data Entry, and the code is

bsSales.AddNew()
txtCreditDays.Text = 20
dtDueDate.Value = dtSalesDate.Value.AddDays(txtCreditDays.Text)
cboGodown.SelectedIndex = 0 '
Default
gBox.Visible = True
dtSalesDate.Focus()

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I am developing a data entry s/w for entering data from Scanned PDF Documents,

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Apr 16, 2012

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Display Data Entry From Mysql To Textbox?

Sep 15, 2011

I want to retrieve a data from my mysql database into my textbox, my problem is how can i show the previous and next data in a column? because it only shows the last data entry.

this what i have done so far

Sub filltextbox()
strsql = "select * from tbl_studinfo"
mysqlcmd.CommandText = strsql

[Code].....

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