numericupdown

I have a NumericUpDown and I need when value change (and not lostfocus) do a new calculation if i put my code in event ValueChanged this work when focus is lost if i put my code in KeyPress then if number is not enter by keyboard (example copy a number and paste it) it doesn't work then what event do i need use? and if this is keypress i need concatenate the numeric value more the key pressed convert all this to string and convert it to decimal, and do the calculate, but it does not work if key pressed is not a number (example backspace) You can use KeyUp event to check direct editing and

On my winform application I'm trying to do colour-coding on the required fields. On user editing, when a required input is filled in, the background becomes light green, if required field is empty, it's background is red. Some fields are enabled and disabled depending on the input in other fields, so sometimes I have required field that is disabled, and that should be completely disabled (disabled colour background). This is what I have for the background change: public static void UpdateBackgroundColor(this NumericUpDown control) { if (!control.Enabled) { control.BackColor = SystemColors

Is it possible to get the text area of a NumericUpDown control? I'm looking to get it's size so that I can mask it with a panel. I don't want the user to be able to edit AND select the text. Is this possible? Or is there another way of covering up the text in the text box? Thanks. You can get this by using a Label control instead of the baked-in TextBox control. Add a new class to your project and paste the code shown below. Compile. Drop the new control from the top of the toolbox onto your form. using System; using System.Windows.Forms; class UpDownLabel : NumericUpDown { private Label

I have a Windows Forms application that includes NumericUpDown control With Minimum and Maximum values set to (50:80) accordingly and step 1. When form loads the NumericUpDown shows 50. I know that NumericUpDown is for picking numbers and numeric types and always has a value, but is there any way to make it show empty when form loads? You can't make default NumericUpDown control empty. NumericUpDown need a value to increase/decrease from. If 'empty' is only a matter of look empty when user see the form at first, then you can hack it by setting NumericUpDown's Text to empty: Private Sub Form1

When the user tabs into my NumericUpDown I would like all text to be selected. Is this possible? private void NumericUpDown1_Enter(object sender, EventArgs e) { NumericUpDown1.Select(0, NumericUpDown1.Text.Length); } (Note that the Text property is hidden in Intellisense, but it's there) I wanted to add to this for future people who have been search for Tab and Click. Jon B answer works perfect for Tab but I needed to modify to include click Below will select the text if you tab in or click in. If you click and you enter the box then it will select the text. If you are already focused on the

I've tried to find the NumericUpDown button in Android, but failed. Do you know what the controller is called in Android - please let me know! <?xml version="1.0" encoding="utf-8"?> <!-- main.xml 7/22 2010 --> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <GridView android:id="@+id/GridView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:numColumns="3" android:verticalSpacing="10dp" android:horizontalSpacing="10dp" android:columnWidth="90dp" android:stretchMode=

Is there a way to use DecimalFormat (or some other standard formatter) to format numbers like this: 1,000,000 => 1.00M 1,234,567 => 1.23M 1,234,567,890 => 1234.57M Basically dividing some number by 1 million, keeping 2 decimal places, and slapping an 'M' on the end. I've thought about creating a new subclass of NumberFormat but it looks trickier than I imagined. I'm writing an API that has a format method that looks like this: public String format(double value, Unit unit); // Unit is an enum Internally, I'm mapping Unit objects to NumberFormatters. The implementation is something like this:

Is it possible in WinForms to show a text inside a NumericUpDown control? For example I want to show the value in my numericupdown control is micro ampers so it should be like "1 uA". Thanks. There's no such functionality built into the standard control. However, it's fairly easy added by creating a custom control that inherits from the NumericUpDown class and overrides the UpdateEditText method to format the number accordingly. For example, you might have the following class definition: public class NumericUpDownEx : NumericUpDown { public NumericUpDownEx() { } protected override void