C#.Net:How to find the distance between two points clicked using mouse Button

[sandeepshetty]

hi All,
Im new to .NET ... I need your help.. I just wanted to know if their is any method or event in .NET to find the distance between two points clicked using a mouse button.... I working on a web form and i need this action to happen over an GIF image file... I hope this is clear and somebody will help me out...

Thank You,
Sandeep.

[sandeepshetty]

C#.Net:How to find the distance between two points Using Mouse Button

Hi...
As im new to .Net .. I just wanted to know if their is any "event or method" in C#.net to find the DISTANCE between the two Points....

Say for example:" I have two points on a web form and i need to find its distance by Dragging the MOUSE BUTTON from one Point to the Other Point..."

Please let me know how.??.

Regards ,

Sandeep.

[JamieHowarth0]

Hi there,

It can be done with client-side Javascript but not C# (or so I believe).

Anyone with prior experience on this kind of problem before?

medicineworker

[IanWright]

Hi...
As im new to .Net .. I just wanted to know if their is any "event or method" in C#.net to find the DISTANCE between the two Points....

Say for example:" I have two points on a web form and i need to find its distance by Dragging the MOUSE BUTTON from one Point to the Other Point..."

Please let me know how.??.

Regards ,

Sandeep.

I think medicineworker is right. You need to look at JavaScript events, store the x,y values upon a MouseDown event to start with. Then using simple pythagoras calculate the distance either everytime a MouseMove event is fired, or the MouseUp event...

[Plater]

Well regardless of where you do it, the distance between two points is computed with like an elementary math formula, The Distance Formula

[JamieHowarth0]

Yes, simple Pythag will do it, and handling of two events - onmousedown to trap the pixel co-ordinates of the beginning of the "drag" motion, and onmouseup to trap the pixel co-ords of the end of the "drag".

As IanWright and Plater mentioned, then do simple trigonometry to deduce the distance between the two points. Bear in mind you'll only have a measure of how many pixels the distance is - to make it useful in context (for example, dragging and dropping walls on a virtual "house" application for a website), then use a "scale" and add a metric to multiply the end result in pixels (i.e. 100px = 5 metres).

medicineworker

[Curtis Rutland]

But as others said, this must be done client-side, not in C#. To put it into context, the page would have to PostBack to the server on the mouse down to send the coordinates, but since there was a postback, it would never know when the mouse up happened.

[Curtis Rutland]

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