VB.Net

rachayita jaiswal

Hi, I have one function called getreport() and one button called btnGenerateReport, my code is -

Protected Sub btnGenerateReport_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnGenerateReport.Click

getreport()

End Sub

as soon as i click on button i want to get time before loading data from this function and after loading data from this function.

So that i can get that how much time this function is taking to load data.

Help.

8 Replies

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Vulpes13y ago
Accepted answer
You appear to be missing a call to the getreport() method in your code behind:

btnGenerateReport.Enabled = false
Dim sw1 As Stopwatch = Stopwatch.StartNew()
getreport()
sw1.Stop()
Dim ts1 As TimeSpan = sw1.Elapsed
Label1.Text = ts1.TotalMilliseconds.ToString() + " ms for show"
btnGenerateReport.Enabled = true

The idea of the stopwatch is that it starts at 0 just before you call getreport() and when getreport returns (i.e. the data has loaded), it's stopped and the time that has elapsed is read off and printed to the label.

It might be a good idea to disable the button while this measurement is taking place and I've added some lines above to do this:
rachayita jaiswal13y ago
Thank you so much, finally i got what i wanted.again thanks for helping me :)
rachayita jaiswal13y ago
Thanks, I got this but i want to check time difference between before and after loading data.
Means when i click on button then i should get time and after loading data also i should get time so that i can get that how much time it took to load data.

and one more thing -
i have created a button ans a label just for test time-

code behind -

Dim sw1 As Stopwatch = Stopwatch.StartNew()
sw1.Stop()
Dim ts1 As TimeSpan = sw1.Elapsed
Label1.Text = ts1.TotalMilliseconds.ToString() + " ms for show"

now if i click on button i am getting 0 ms in label and if i click again on same button i am getting 0.003 ms in label

so i am not able to get exact time.
Please help
Kunal Vaishya13y ago
Hi ,

You can use like this

System.Diagnostics.Stopwatch
Vulpes13y ago
Sorry, the syntax of that line isn't quite right, it should be:

Dim sw As StopWatch = StopWatch.StartNew()
Vulpes13y ago
As well as importing the System.Diagnostics namespace, you'll also need to add a reference to System.dll to your project unless it's been added already.
rachayita jaiswal13y ago
Hi, But in this line - Dim sw As StopWatch.StartNew()

StopWatch i am not getting.
Vulpes13y ago
I'd use the System.Diagnostics.StopWatch class for this:

Imports System.Diagnostics

' ....

Dim sw As StopWatch.StartNew()
getreport()
sw.Stop()
Dim ts As TimeSpan = sw.Elapsed
Label1.Text = ts.TotalMilliseconds.ToString() + " ms";