C#

Saba02 wrote:

why this error occured?

Saba02 wrote:

what do i do now?

Luc Pattyn [Forum Guidelines] [My Articles]

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I dislike the black-and-white voting system on questions/answers.

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Label priceLabel = DataList1.Controls[0].FindControl("PriceLabel") as Label;
double price = double.TryParse(priceLabel.Text);

gareth111 wrote:

double price = double.TryParse(priceLabel.Text);

Luc Pattyn [Forum Guidelines] [My Articles]

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I dislike the black-and-white voting system on questions/answers.

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Kashif Iqbal Khan wrote:

a NullRefrenceException is thrown

Luc Pattyn [Forum Guidelines] [My Articles]

---

I dislike the black-and-white voting system on questions/answers.

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<br />
// Main<br />
<br />
/*Line 1*/ VisioForm f = new VisioForm();<br />
/*Line 2*/ f.Show();<br />
/*Line 3*/ f.Close();<br />
<br />
/*Line 4*/ MyApplicationContext c = new MyApplicationContext;  <br />
/*Line 5*/ Application.Run( c );<br />
<br />
<br />

try {
    ... all about VisioForm
    ... all about MyApplicationContext
} catch(Exception exc) {
    Console.WriteLine(exc.ToString());
}

Luc Pattyn [Forum Guidelines] [My Articles]

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I dislike the black-and-white voting system on questions/answers.

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if (openFileDialog1.ShowDialog() != DialogResult.OK)
{
    return;
}

if (openFileDialog1.ShowDialog() == DialogResult.OK) {
    // do whatever is supposed to happen on OK
}           }

Luc Pattyn [Forum Guidelines] [My Articles]

---

I dislike the black-and-white voting system on questions/answers.

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Kwagga wrote:

for some reason the openfiledialog would show again

Luc Pattyn [Forum Guidelines] [My Articles]

---

I dislike the black-and-white voting system on questions/answers.

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private void btnOpenFix_Click(object sender, EventArgs e)
{
    if (openFileDialog1.ShowDialog() == DialogResult.OK)
    {
        txtboxFixed.Text = openFileDialog1.FileName;
    }
    if (openFileDialog1.ShowDialog() == DialogResult.Cancel)
        this.Close();

private void btnOpenFix_Click(object sender, EventArgs e)
{
    if (openFileDialog1.ShowDialog() != DialogResult.OK)
    {
        return;
    }
    else
        txtboxFixed.Text = openFileDialog1.FileName;
}

DialogResult res = openFileDialog1.ShowDialog() ;
 
if ( res == DialogResult.OK ) ... ;
 
if ( res == DialogResult.Cancel ) ... ;

switch ( openFileDialog1.ShowDialog() )
{
    case DialogResult.OK : ... ; break ;
 
    case DialogResult.Cancel : ... ; break ;
}

<br />
double t; <br />

<br />
double t = 0;<br />