FolderBrowserDialog Question

[Sean Campbell]

Hi there!

I have a form with a button and a label.

Can anyone offer some insight as to why the following code snippet gives me
the following error: "Use of unassigned local variable 'path2'? If I remove
the variable all together and assign the label1.text = dialog.Selected Path
then the code works but I don't understand why. I hope someone can shed some
light on the subject. Thanks.

Sean Campbell

private void button1_Click(o bject sender, EventArgs error)
{
string path2;
try
{
FolderBrowserDi alog dialog = new FolderBrowserDi alog();
dialog.ShowNewF olderButton = false;
if (dialog.ShowDia log() == DialogResult.OK )
{
path2 = dialog.Selected Path;
}

label1.Text = path2;
}

[C.C. \(aka Me\)]

Re: FolderBrowserDi alog Question

If dialog.ShowDial og() != DialogResult.OK then path2 never gets initialized.

To fix it all you have to do is change

string path2;

to

string path2 = "";

That way path2 has been initialized.

The other option is to move the label1.Text=pat h2 line inside the if()
statement since you probably only want to set the Text if they click Ok
anyway?

--
~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~
Charles Cox
VC/VB/C# Developer
~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~

"Sean Campbell" <SeanCampbell@d iscussions.micr osoft.com> wrote in message
news:84DD0690-1DBB-4533-9A1A-448E70704C6D@mi crosoft.com...[color=blue]
> Hi there!
>
> I have a form with a button and a label.
>
> Can anyone offer some insight as to why the following code snippet gives
> me
> the following error: "Use of unassigned local variable 'path2'? If I
> remove
> the variable all together and assign the label1.text = dialog.Selected Path
> then the code works but I don't understand why. I hope someone can shed
> some
> light on the subject. Thanks.
>
> Sean Campbell
>
> private void button1_Click(o bject sender, EventArgs error)
> {
> string path2;
> try
> {
> FolderBrowserDi alog dialog = new FolderBrowserDi alog();
> dialog.ShowNewF olderButton = false;
> if (dialog.ShowDia log() == DialogResult.OK )
> {
> path2 = dialog.Selected Path;
> }
>
> label1.Text = path2;
> }[/color]

[Sean Campbell]

RE: FolderBrowserDi alog Question

Thanks for the help. Works great!

"Sean Campbell" wrote:
[color=blue]
> Hi there!
>
> I have a form with a button and a label.
>
> Can anyone offer some insight as to why the following code snippet gives me
> the following error: "Use of unassigned local variable 'path2'? If I remove
> the variable all together and assign the label1.text = dialog.Selected Path
> then the code works but I don't understand why. I hope someone can shed some
> light on the subject. Thanks.
>
> Sean Campbell
>
> private void button1_Click(o bject sender, EventArgs error)
> {
> string path2;
> try
> {
> FolderBrowserDi alog dialog = new FolderBrowserDi alog();
> dialog.ShowNewF olderButton = false;
> if (dialog.ShowDia log() == DialogResult.OK )
> {
> path2 = dialog.Selected Path;
> }
>
> label1.Text = path2;
> }[/color]