2 questions: javascript-aspnet and zooming

hi there!

i'm new to svg and need a little (big) help...

i'm actually using asp.net, the first question is:
how can i pass a value from a click on the svg map to the code behind in the asp net page? (javascript?)

the second question is: can i disable the zoom function (ctrl+click) ? i'd like to control the level of detail of the map, so i need to zoom-in and zoom-out using some buttons..


thanks in advance!
dejgraphix

Hi dejgraphix,

Good questions.

how can i pass a value from a click on the svg map to the code behind in the asp net page? (javascript?)

Yes, javascript works but you can also use SVG's <a> element, just like HTML. The easiest way to pass values is via the querystring. Or you can use postURL() - http://www.learnsvg.com/tutorial2/example/postURL.svg. You will also want to checkout getURL(). This is a good free reference - http://www.learnsvg.com/tutorial2/catalog.php

Passing values into Web services is another possibility. I will soon have some articles available on xml.com that details this approach.

the second question is: can i disable the zoom function (ctrl+click) ? i'd like to control the level of detail of the map, so i need to zoom-in and zoom-out using some buttons..

Yes, I believe you can by handling the ctrl Key event. Here is an example:
http://www.learnsvg.com/tutorial2/example/shiftKey.svg However, I have not yet tested this.

Best,

Learn SVG - http://learnsvg.com

many thanks!

i found i can disable zoom an pan using 'zoomAndPan="disable"' in the <svg> tag

i'll check out the links you posted

regards
dejgraphix

Hi dejgraphix,

Good questions.

how can i pass a value from a click on the svg map to the code behind in the asp net page? (javascript?)

Yes, javascript works but you can also use SVG's <a> element, just like HTML. The easiest way to pass values is via the querystring. Or you can use postURL() - http://www.learnsvg.com/tutorial2/example/postURL.svg. You will also want to checkout getURL(). This is a good free reference - http://www.learnsvg.com/tutorial2/catalog.php

Passing values into Web services is another possibility. I will soon have some articles available on xml.com that details this approach.

the second question is: can i disable the zoom function (ctrl+click) ? i'd like to control the level of detail of the map, so i need to zoom-in and zoom-out using some buttons..

Yes, I believe you can by handling the ctrl Key event. Here is an example:
http://www.learnsvg.com/tutorial2/example/shiftKey.svg However, I have not yet tested this.

Best,

Learn SVG - http://learnsvg.com

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