How to pass path name in string variable ex: sfilename contain path with file name

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OpenFileDialog choofdlog = new OpenFileDialog();
choofdlog.Filter = "All Files (*.DAT)|*.DAT";
choofdlog.FilterIndex = 1;
choofdlog.Multiselect = true;
string sFileName;

if (choofdlog.ShowDialog() == DialogResult.OK)
{
sFileName = choofdlog.FileName;

}
FileStream fs = new FileStream(sFileName, FileMode.Open, FileAccess.Read);

this give error if I put sFileName this,this way "sFileName"
it pass current folder name

Please help me

Thanks in advance

Ajith

What I have tried:

this give error if I put sFileName this,this way "sFileName"
it pass current folder name

Posted 10-May-17 4:26am

Member 12931315

Updated 10-May-17 4:43am

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[no name] 10-May-17 10:43am

Out of the 3453463576456756 errors you can possibly get, how are we to know which one you chose?

Why would you pass an empty string to the FileStream constructor if the user clicks "Cancel"?

Richard MacCutchan 10-May-17 11:47am

Of course it gives an error. sFileName is a variable not the name of a file. Also, why are you setting Multiselect = true when you just want to open a single file?

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OriginalGriff · Accepted Answer · 2017-05-10T04:43:00

Solution 1

Try this:

C#

OpenFileDialog choofdlog = new OpenFileDialog();
choofdlog.Filter = "All Files (*.DAT)|*.DAT";
choofdlog.FilterIndex = 1;
choofdlog.Multiselect = true;
    if (choofdlog.ShowDialog() == DialogResult.OK)
    {
    foreach (string sFileName = choofdlog.FileNames)
        {
        using (FileStream fs = new FileStream(sFileName, FileMode.Open, FileAccess.Read))
        {
            {
               ...
            }
        }
    }

When you use multiselect, you should work from the FileNames collection, not a single FileName - and you shouldn't be trying to open files if the user presses "Cancel" in the dialog.

Posted 10-May-17 4:43am

OriginalGriff

Updated 10-May-17 4:44am

v2

Comments

Member 12931315 10-May-17 11:59am

Hi OriginalGriff1

your solution works, thank you very much and also
thanks for the other guys tried to help.

Thing is I am totally new C# and there will be many more
some what stupid problem from me.

Thanks again

Ajith (from Sri Lanka )

OriginalGriff 10-May-17 12:28pm

You're welcome!

Member 12931315 11-May-17 5:46am

Hi Griff

I have problem, I want to see if record exists before I write new one
I convert text file that you helped me and loaded a line to variable
and tried this

cToken1 = str.ToString().Substring(0, 9).Trim();
cToken2 = '5' + cToken1.PadLeft(5, '0');
cToken = cToken2.Substring(0, 6);
cDate = str.ToString().Substring(10, 10);
cTime = str.ToString().Substring(21, 2) + str.ToString().Substring(24, 2);
cIdno = str.ToString().Substring(30, 1);
datetime = Convert.ToDateTime(cDate);

DataRow[] foundRows;
foundRows = this.timeattDataSet.Tables["Data"].Select("Token_no= @cToken and Date = @datetime and Time = @cTime");

it gives error for @cToken ,it's say it's column, not a variable

Can you please help

Thanks in advance

Ajith

OriginalGriff 11-May-17 5:51am

Different subject altogether, needs to be a new QA question!