Table cells as buttons

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Re: Table cells as buttons

Postby Robert Koritnik » Sat, 29 May 2004 16:51:55 GMT

If every cell should be clickable you can put a LinkButton in it. However
you should set style for your linkbutton like this:

.yourTableClass TD A
{
    display: block;
    width:100%;
    height: 100%;
}

regarding to this you should set your tables CssClass property to
"yourTableClass". This will make linkbuttons in TDs act like style says.

After you have done that you create table and put linkbuttons in every cell
and connect to theirs Click/Command events. Whatever is more suitable. Which
cell is clicked? What info can be valuable for you? Row/column indexes
maybe? I don't know that. You should determine the information that is
useful for you.

Otherwise you can do another thing. You could create your own custom control
that implements IPostBackEventHandler and call on every created TableCell
Page.GetPostBackEventReference with argument for the onclick attricute to
determine your cell on postback click.

-- 
RobertK
{ Clever? No just smart. }





specific cell?  I don't see a click event for the Table Web Control.
Web Controls? And how to work with the click events? Any way to group it
into an array?



Re: Table cells as buttons

Postby S2xvbSBEYXJr » Sun, 30 May 2004 04:26:06 GMT

Do you have any example code as far as how to populate the cells with linkbuttons that all connect to the same Click handler, passing the X/Y info?  That's the part I am confused about - multiple buttons calling the same click handler, rather than having to create a separate on for each button

Thank


Re: Table cells as buttons

Postby Robert Koritnik » Tue, 01 Jun 2004 23:59:45 GMT

...
for (int rowIndex = 0; rowIndex < someRowCount; rowIndex++)
{
    TableRow tr = new TableRow();
    myTable.Rows.Add(tr);
    for (int colIndex = 0; colIndex < someColumnCount; colIndex++ )
    {
        TableCell tc = new TableCell();
        tr.Cells.Add(tc);
        LinkButton lb = new LinkButton();
        tc.Controls.Add(lb);
        lb.Text = " "; // or some text you need to display
        lb.CommandArgument = rowIndex.ToString() + ";" +
colIndex.ToString();
        lb.Command += new CommandEventHandler(this.CommonCommand);
    }
}
...


private void CommonCommand(object sender, CommandEventArgs e)
{
    int rowIndex;
    int colIndex;
    string[] cellIndex = e.CommandArgument.Split(new char[] {';'});
    if (cellIndex.Length == 2)
    {
        rowIndex = int.Parse(cellIndex[0]);
        colIndex = int.Parse(cellIndex[1]);
    }
    // logic after this is by your own will doing whatever it is that you
need to accomplish
    ...
}
...

Don't forget to set Tables class to the one I mentioned in the earlier post
and things will work perfectly. This is just dynamicly created table... You
can aslo set other properties on the controls you create (Rows and Cells).

Hope this helps.

-- 
RobertK
{ Clever? No just smart. }





linkbuttons that all connect to the same Click handler, passing the X/Y
info?  That's the part I am confused about - multiple buttons calling the
same click handler, rather than having to create a separate on for each
button.



Re: Table cells as buttons

Postby S2xvbSBEYXJr » Sat, 05 Jun 2004 05:01:04 GMT

Most excellent - works exactly as I need! Thank you so much

Anyone else using this solution - I Had to fix one thing
string[] cellIndex = e.CommandArgument.Split(new char[] {';'})

changed to
string[] cellIndex = e.CommandArgument.ToString().Split(new char[] {';'})



Re: Table cells as buttons

Postby Robert Koritnik » Sat, 05 Jun 2004 23:05:26 GMT

Of course CommandArgument is of type object. I wrote it out of my head so I
wonder that there werent any other errors in the code... ;)

-- 
RobertK
{ Clever? No just smart. }








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