C# doubleclick event question – please help!

[User (Old forums)]

#13293 |

Hello,

I just need to trigger some code when a double click is made in any row of the grid. I saw a post here but it need a loop… Is it realy need to loop to get a doubleclick event in the grids row? I find that kinda odd.

Well I hope I can hear from anyone soon.

Imported from legacy forums. Posted by EFileTahi-A (had 5857 views)

[User (Old forums)]

#13294

You need the loop when you subscribe to the doubleClick event of each row.

The loop is only executed once.

Like this:

//place this in a init method…
foreach( Xceed.Grid.DataRow row in gridControl1.DataRows)
{
row.DoubleClick += new EventHandler(row_DoubleClick);
}

private void row_DoubleClick(object sender, EventArgs e)
{
MessageBox.Show(“row_DoubleClick”);
}

I think this is the only way. And it performs without problems.

Regards
Thomas

Imported from legacy forums. Posted by C# (had 480 views)

[User (Old forums)]

#13295

You don’t need the loop. If you use the loop, you have to do it each time the datarows are built. A better method is: subscribe the DoubleClick event of the DataRowTemplate. When the grid adds a new DataRow, that DataRow gets all the events of the template row.

// init method
myGridControl.DataRowTemplate.DoubleClick += new EventHandler(row_DoubleClick);

private void row_DoubleClick(object sender, EventArgs e)
{
MessageBox.Show(“row_DoubleClick”);
}

Imported from legacy forums. Posted by Tommy (had 275 views)

[User (Old forums)]

#13296

Thank you both for the replies, but tommy, where should I place the: myGridControl.DataRowTemplate.DoubleClick += new EventHandler(row_DoubleClick);
?

Imported from legacy forums. Posted by EFileTahi-A (had 455 views)

[User (Old forums)]

#13297

If you’re using the Visual Studio Forms Designer, you can select the DataRowTemplate in the grid on the form, go to the <b>Properties</b> panel, click on the <b>Events</b> button (the one with the lightning bolt), and double-click on the <b>DoubleClick</b> event.

If you want to do it in code, it should be placed after you have created and initialized the grid. If the grid is initialized in the <b>InitializeComponent</b> method (if you use the Visual Designer), you can add the line in the constructor of your form, right after the line: <b>InitializeComponent();</b>

Imported from legacy forums. Posted by Tommy (had 305 views)

[User (Old forums)]

#13298

Am sorry tommy, is not the doubleclick event suppose to be trigger only when u double click on a grids empty space? Anyway, still did not understand what to do with the “lvwDB.DataRowTemplate.DoubleClick += new EventHandler(row_DoubleClick);” … Sorry for being such a moron 🙁

Imported from legacy forums. Posted by EFileTahi-A (had 258 views)

[User (Old forums)]

#13299

First, you’re not a moron.
Second, maybe it’s better if you just do it in code.
The constructor of your form should look like this:

public myForm()
{
InitializeComponent();
}

You should add the DoubleClick-line after InitializeComponent, like this:

public myForm()
{
InitializeComponent();
<b>lvwDB.DataRowTemplate.DoubleClick += new EventHandler(row_DoubleClick);</b>
}

You should also add the method row_DoubleClick, that looks like this:

private void row_DoubleClick(object sender, EventArgs e)
{
}

Imported from legacy forums. Posted by Tommy (had 304 views)

[User (Old forums)]

#13300

thank u tommy clarified now! 🙂

Imported from legacy forums. Posted by EFileTahi-A (had 258 views)

[User (Old forums)]

#13301

Well, I did understand what by the time I last posted on here, but, it seems that does not work tommy when I today try it.

I added:

public f_t_ListChoose()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
<b>lvwDB.DataRowTemplate.DoubleClick += new EventHandler(row_DoubleClick); </b>
//
// TODO: Add any constructor code after InitializeComponent call
//
}

And I created the:

private void row_DoubleClick(object sender, EventArgs e)
{
MessageBox.Show(“bla”);
}

But I cannot make it work 🙁

Imported from legacy forums. Posted by EFileTahi-A (had 6809 views)

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