Advice on label text concatenation during databinding

[GM]

I am building the text for a resume section label in databinding with 20 or
so data columns using a series of 20 or so code snippits like the following:

If e.Item.DataItem("EmployerDisplay") And e.Item.DataItem("Employer") <> ""
Then
Sections.Text += "<BR><B>Employer</B>: " & e.Item.DataItem("Employer")
End If

Is this an efficient way to build the section label's text property? Any
suggestions?

In each snippit, I call the data field twice, once to test for data and once
to add it to the control if present. Would it be better to pull the data
into a string or something?

Dim ds as String
------
ds = e.Item.DataItem("Employer")
If e.Item.DataItem("EmployerDisplay") And ds <> "" Then
Sections.Text += "<BR><B>Employer</B>: " & ds
End If

Thanks in advance for any suggestions.
Gary

[Elliot M. Rodriguez]

You can use the StringBuilder object from the System.Text namespace - its
built specifically for concatenation operations.

--
Elliot M. Rodriguez, MCSD
*** It would take 227 cans of Mountain Dew to kill me***



"GM" <gmdevREMOVE@starband.net> wrote in message
news:elhkrXhUDHA.1396@tk2msftngp13.phx.gbl...

> I am building the text for a resume section label in databinding with 20

or

> so data columns using a series of 20 or so code snippits like the

following:

>
> If e.Item.DataItem("EmployerDisplay") And e.Item.DataItem("Employer") <>

""

> Then
> Sections.Text += "<BR><B>Employer</B>: " & e.Item.DataItem("Employer")
> End If
>
> Is this an efficient way to build the section label's text property? Any
> suggestions?
>
> In each snippit, I call the data field twice, once to test for data and

once

> to add it to the control if present. Would it be better to pull the data
> into a string or something?
>
> Dim ds as String
> ------
> ds = e.Item.DataItem("Employer")
> If e.Item.DataItem("EmployerDisplay") And ds <> "" Then
> Sections.Text += "<BR><B>Employer</B>: " & ds
> End If
>
> Thanks in advance for any suggestions.
> Gary
>
>

[Rick Spiewak]

It is much more efficient to use your proposed approach: ds =
e.Item.DataItem("Employer")
than it is to reference the chain of objects more than once.

"GM" <gmdevREMOVE@starband.net> wrote in message
news:elhkrXhUDHA.1396@tk2msftngp13.phx.gbl...

> I am building the text for a resume section label in databinding with 20

or

> so data columns using a series of 20 or so code snippits like the

following:

>
> If e.Item.DataItem("EmployerDisplay") And e.Item.DataItem("Employer") <>

""

> Then
> Sections.Text += "<BR><B>Employer</B>: " & e.Item.DataItem("Employer")
> End If
>
> Is this an efficient way to build the section label's text property? Any
> suggestions?
>
> In each snippit, I call the data field twice, once to test for data and

once

> to add it to the control if present. Would it be better to pull the data
> into a string or something?
>
> Dim ds as String
> ------
> ds = e.Item.DataItem("Employer")
> If e.Item.DataItem("EmployerDisplay") And ds <> "" Then
> Sections.Text += "<BR><B>Employer</B>: " & ds
> End If
>
> Thanks in advance for any suggestions.
> Gary
>
>

[Rick Spiewak]

You can use a StringBuilder or String.Concat to do this efficiently, but I
wouldn't recommend constantly appending to the Label control directly.

"GM" <gmdevREMOVE@starband.net> wrote in message
news:e7s3TyiUDHA.652@tk2msftngp13.phx.gbl...

> I thought about the StringBuilder, but I don't know how the Label control
> compares.
>
> Is the text property of the Label control built to work well with
> concatenation too? Or should I builld all the resume sections in a
> StringBuilder and then assign it to the Section Label's text property at

the

> end?
>
> Or, are you suggesting it is better to store the data value in each code
> snippet in a StringBuilder (or String) rather than call it twice?
>
> Thanks
> Gary
>
>
>
> "Elliot M. Rodriguez" <elliotmrodriguez@hotspam.mail.com> wrote in message
> news:egogpqhUDHA.216@TK2MSFTNGP10.phx.gbl...

> > You can use the StringBuilder object from the System.Text namespace -

its

> > built specifically for concatenation operations.
> >
> > --
> > Elliot M. Rodriguez, MCSD
> > *** It would take 227 cans of Mountain Dew to kill me***
> >
> >
> >
> > "GM" <gmdevREMOVE@starband.net> wrote in message
> > news:elhkrXhUDHA.1396@tk2msftngp13.phx.gbl...

> > > I am building the text for a resume section label in databinding with

20

> > or

> > > so data columns using a series of 20 or so code snippets like the

> > following:

> > >
> > > If e.Item.DataItem("EmployerDisplay") And e.Item.DataItem("Employer")

<>

> > ""

> > > Then
> > > Sections.Text += "<BR><B>Employer</B>: " &

e.Item.DataItem("Employer")

> > > End If
> > >
> > > Is this an efficient way to build the section label's text property?

Any

> > > suggestions?
> > >
> > > In each snippet, I call the data field twice, once to test for data

and

> > once

> > > to add it to the control if present. Would it be better to pull the

data

> > > into a string or something?
> > >
> > > Dim ds as String
> > > ------
> > > ds = e.Item.DataItem("Employer")
> > > If e.Item.DataItem("EmployerDisplay") And ds <> "" Then
> > > Sections.Text += "<BR><B>Employer</B>: " & ds
> > > End If
> > >
> > > Thanks in advance for any suggestions.
> > > Gary
> > >
> > >

> >
> >

>
>