topic Re: Get Precision for Text Value in .NET Forum

Get Precision for Text Value

traiduong014969 — Sun, 29 Jan 2023 17:16:17 GMT

Hi all,

Recently, I how to learn get Coordinate value from click by mouse. However, the value that i receive has many number behind "." . So I want to get a number that precision is ".00". For example Point 1 (5.23, 6.45, 5,77)

NOT ((5.23434645, 6.45463463456, 5.77xxx-xxxxxxxx). You can see the snapshot below:

Someone can help me edit again this code

Thank you !

[CommandMethod("11GetPoint")] public void 11GetPoint() { Editor ed = AcAp.DocumentManager.MdiActiveDocument.Editor; PromptPointOptions pr = new PromptPointOptions("Click mouse to get point"); pr.AllowNone = true; pr.AllowArbitraryInput = true; PromptPointResult kq = ed.GetPoint(pr); if (kq.Status != PromptStatus.OK) return; pr.BasePoint = kq.Value; pr.UseBasePoint = true; PromptResult kq1 = ed.GetPoint(pr); if (kq1.Status != PromptStatus.OK) return; ed.WriteMessage("\np1 = " + kq.Value.ToString() + "p2 = " + kq1.ToString()); }

Re: Get Precision for Text Value

Jeff_M — Sun, 29 Jan 2023 17:34:08 GMT

Use the Fixed-point formatting: ToString("F2")

See THIS for more on string formatting.

Re: Get Precision for Text Value

_gile — Sun, 29 Jan 2023 17:46:20 GMT

Hi,

The Point3d structure implements IFormatable so you can pass a format to the ToString method (this requires to also pass a FormatProvider)

ed.WriteMessage("\np1 = " + kq.Value.ToString("0.00", CultureInfo.CurrentCulture) + "p2 = " + kq1.Value.ToString("0.00", CultureInfo.CurrentCulture));

This can be simplified using the overload of Editor.WriteMessage method which takes a params object[] argument(s).

ed.WriteMessage("\np1 = {0:0.00} p2 = {1:0.00}", kq.Value, kq1.Value);

Or the (not so) new string interpolation using $.

ed.WriteMessage($"\np1 = {kq.Value:0.00} p2 = {kq1.Value:0.00}");

Re: Get Precision for Text Value

traiduong014969 — Mon, 30 Jan 2023 14:54:27 GMT

Thanh you @_gile, @Jeff_M .

This working fine.