my problem is that i'm trying to have a textbox display the number of times that I have clicked on the screen. I'm having the issue of not being able to take the textbox's text and convert it to a int. Thanks!
{
public partial class Form1 : Form
{
Random rand = new Random();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
button1.Location = new Point(rand.Next(0, 750), rand.Next(0, 750));
}
private void Form1_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Right)
{
int mouseclick = 0;
textBox1.Text = Int32.Parse(mouseclick);
}
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
}
}
Try the following changes:
{
public partial class Form1 : Form
{
Random rand = new Random();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
button1.Location = new Point(rand.Next(0, 750), rand.Next(0, 750));
}
int mouseclick = 0;
private void Form1_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Right)
{
mouseclick++;
}
textBox1.Text = mouseclick.ToString();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
}
}
I have moved mouseclick out of the event so that it can maintain its value and i am only incrementing mouseclick if the user clicks with the left mouse button.
The textbox datatype is a string, but its assignment is a number being parsed as a number. Perhaps the following example would be helpful.
string mouseclick = "0";
int intMouseClick = Int32.Parse(mouseclick);
textBox1.Text = intMouseClick.ToString();
You tried to convert an int into string bei using Int32.Parse(...).
But this function does the reverse conversion. It converts a string to an int.
First off, you are telling the program to set mouseclicks to 0 every single time it is clicked. You might instead want the code to read:
if (e.Button != MouseButtons.Right)
{
int mouseclick = mouseclick + 1;
textBox1.Text = Int32.Parse(mouseclick);
}
or move the int out of the if statement and just do mouseclick++;
On top of that, if you are trying to set the text boxes text, you can do it much easier by just doing this:
textBox1.Text = mouseclick.ToString();
Related
I have 40 buttons that all do something slightly different when clicked, I would like to condense this down if I can. I also want to say, if one of the buttons is clicked, create a timestamp which can be accessed by the class.
Here is the code for 2 out of 40 of the buttons:
private void Btn1_Click(object sender, RoutedEventArgs e)
{
for (int i = 1; i < 5; i++)
{
CheckBox CheckBox = (this.FindName(string.Format("Check{0}", i)) as CheckBox);
if (CheckBox != null)
{
CheckBox.IsChecked = true;
}
}
}
private void BtnDisable1_Click(object sender, RoutedEventArgs e)
{
for (int i = 1; i < 5; i++)
{
CheckBox CheckBox1 = (this.FindName(string.Format("Check_D{0}", i)) as CheckBox);
if (CheckBox1 != null)
{
CheckBox1.IsChecked = false;
}
}
}
I think one way of doing it is putting it in an array and whenever one of the 40 buttons are clicked it looks in the array on what to do next? I'm not really sure, thank you!
You can make this simple using one method.
Answer is updated based on this discussion
private void DoWork(int checkboxGroup, bool enable)
{
int start = checkboxGroup * 4;
for (int i = start; i < start + 4; i++)
{
CheckBox CheckBox = this.FindName("CheckBox" + i) as CheckBox;
if (CheckBox != null)
{
CheckBox.IsChecked = enable;
}
}
}
private void Btn1_Click(object sender, RoutedEventArgs e)
{
DoWork(1 , true);
}
private void BtnDisable1_Click(object sender, RoutedEventArgs e)
{
DoWork(1 , false);
}
Because there are 40 methods like this you can use Expression bodied methods. You must have C#6 to use this feature.
private void Btn1_Click(object sender, RoutedEventArgs e) => DoWork(1 , true);
private void BtnDisable1_Click(object sender, RoutedEventArgs e) => DoWork(1 , false);
private void Btn2_Click(object sender, RoutedEventArgs e) => DoWork(2, true);
private void BtnDisable2_Click(object sender, RoutedEventArgs e) => DoWork(2, false);
// and so on
Hi im trying to create this program where the txtbox1 will multiply on user's input and automatically shows the total in decimal point same as in other txtboxes, but i'm having a trouble to sum up all the subtotals of every result to overall txtbox total
here is my code in every subtotals
private void txtbox11_TextChanged_1(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtbox12.Text))
txtTotal11.Text =
(Convert.ToInt32(txtbox11.Text)*Convert.ToDecimal(112.61)).ToString();
}
private void txtbox12_TextChanged_1(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtbox12.Text))
txtTotal12.Text =
(Convert.ToInt32(txtbox12.Text) * Convert.ToDecimal(32.10)).ToString();
}
How do i automatically get the sum of txtTotal11 & txtTotal12 to display on txtTotal13?
or should i put an event like "textChanged" on every txtTotal# too?
thanks guys i'm really having a headache on this.
It will be something like:
private void txtboxSubTotal1_TextChanged_1(object sender, EventArgs e)
{
CalcGrandTotal();
}
private void txtboxSubTotal2_TextChanged_1(object sender, EventArgs e)
{
CalcGrandTotal();
}
private void CalcGrandTotal()
{
decimal grandTotal = 0;
decimal parseValue= 0;
if (!string.IsNullOrEmpty(txtboxSubTotal1.Text) && decimal.TryParse(txtboxSubTotal1.Text, parseValue))
grandTotal += parseValue;
if (!string.IsNullOrEmpty(txtboxSubTotal2.Text) && decimal.TryParse(txtboxSubTotal2.Text, parseValue))
grandTotal += parseValue;
txtboxGrandTotal.Text = grandTotal.ToString();
}
Try this: (in every TextChanged event)
decimal total13;
private void txtbox11_TextChanged_1(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtbox12.Text))
var thisTotal = (Convert.ToInt32(txtbox11.Text)*Convert.ToDecimal(112.61)).ToString();
txtTotal11.Text = thisTotal
total13 += thisTotal
txtTotal13.Text = thisTotal.ToString();
}
Having trouble with something here which I'm hoping is actually simple.
I have a custom UserControl in WPF which allows me to display an image. When the program is running a user can add this UserControl as many times as they like to a canvas. In effect a simple image viewer where they can add and move images about.
I would like to be able to right click these images open a contextMenu and then choose send backward of bring forward and the images would then change z order depending which menu choice was clicked.
I have the user control set up with the contextMenu so I just need to know the code for changing the z order of this userControl...
Any help is much appreciated :)
namespace StoryboardTool
{
/// <summary>
/// Interaction logic for CustomImage.xaml
/// </summary>
public partial class CustomImage : UserControl
{
private Point mouseClick;
private double canvasLeft;
private double canvasTop;
public CustomImage()
{
InitializeComponent();
cusImageControl.SetValue(Canvas.LeftProperty, 0.0);
cusImageControl.SetValue(Canvas.TopProperty, 0.0);
}
public void chooseImage()
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Title = "Choose Image to Add";
if (ofd.ShowDialog() == true)
{
BitmapImage bImage = new BitmapImage();
bImage.BeginInit();
bImage.UriSource = new Uri(ofd.FileName);
bImage.EndInit();
image.Width = bImage.Width;
image.Height = bImage.Height;
image.Source = bImage;
image.Stretch = Stretch.Fill;
}
}
private void cusImageControl_LostMouseCapture(object sender, MouseEventArgs e)
{
((CustomImage)sender).ReleaseMouseCapture();
}
private void cusImageControl_MouseUp(object sender, MouseButtonEventArgs e)
{
((CustomImage)sender).ReleaseMouseCapture();
cusImageControl.Cursor = Cursors.Arrow;
}
private void cusImageControl_MouseMove(object sender, MouseEventArgs e)
{
if ((((CustomImage)sender).IsMouseCaptured) && (cusImageControl.Cursor == Cursors.SizeAll))
{
Point mouseCurrent = e.GetPosition(null);
double Left = mouseCurrent.X - mouseClick.X;
double Top = mouseCurrent.Y - mouseClick.Y;
mouseClick = e.GetPosition(null);
((CustomImage)sender).SetValue(Canvas.LeftProperty, canvasLeft + Left);
((CustomImage)sender).SetValue(Canvas.TopProperty, canvasTop + Top);
canvasLeft = Canvas.GetLeft(((CustomImage)sender));
canvasTop = Canvas.GetTop(((CustomImage)sender));
}
else if ((((CustomImage)sender).IsMouseCaptured) && (cusImageControl.Cursor == Cursors.SizeNWSE))
{
/*Point mouseCurrent = e.GetPosition(null);
cusImageControl.Height = cusImageControl.canvasTop + mouseClick.Y;
cusImageControl.Width = cusImageControl.canvasLeft + mouseClick.X;
mouseClick = e.GetPosition(null);*/
}
}
private void cusImageControl_MouseDown(object sender, MouseButtonEventArgs e)
{
mouseClick = e.GetPosition(null);
canvasLeft = Canvas.GetLeft(((CustomImage)sender));
canvasTop = Canvas.GetTop(((CustomImage)sender));
((CustomImage)sender).CaptureMouse();
}
private void ContextMenuBringForward_Click(object sender, RoutedEventArgs e)
{
MessageBox.Show("Bring Forward");
}
private void ContextMenuSendBackward_Click(object sender, RoutedEventArgs e)
{
MessageBox.Show("Send Backward");
}
private void ContextMenuMove_Click(object sender, RoutedEventArgs e)
{
cusImageControl.Cursor = Cursors.SizeAll;
}
private void ContextMenuResize_Click(object sender, RoutedEventArgs e)
{
cusImageControl.Cursor = Cursors.SizeNWSE;
}
}
}
See Panel attached property Canvas.SetZIndex. Change z-Index of all elements to 0, and z-Index of your right-clicked control to 1.
void mouseUp(object sender, MouseButtonEventArgs e)
{
foreach (var child in yourCanvas.Children) Canvas.SetZIndex(child, 0);
Canvas.SetZIndex((UIElement)sender, 1);
}
The following code works where selected is defined as my UserControl and set in the mouseDown event.
private void ContextMenuSendBackward_Click(object sender, RoutedEventArgs e)
{
Canvas parent = (Canvas)LogicalTreeHelper.GetParent(this);
foreach (var child in parent.Children)
{
Canvas.SetZIndex((UIElement)child, 0);
}
Canvas.SetZIndex(selected, 1);
}
Thanks to voo for all his help.
I have added this code to my forum:
private void dataGridView1_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
ContextMenu a = new ContextMenu();
a.MenuItems.Add(new MenuItem("Google"));
a.MenuItems.Add(new MenuItem("Yahoo"));
int currentMouseOverRow = dataGridView1.HitTest(e.X, e.Y).RowIndex;
if (currentMouseOverRow >= 0)
{
a.MenuItems.Add(new MenuItem(string.Format("", currentMouseOverRow.ToString())));
}
a.Show(dataGridView1, new Point(e.X, e.Y));
}
}
private void dataGridView1_CellMouseEnter(object sender, DataGridViewCellEventArgs e)
{
currentMouseOverRow = e.RowIndex;
}
private void dataGridView1_CellMouseLeave(object sender, DataGridViewCellEventArgs e)
{
currentMouseOverRow = -1;
}
But how do I add the function to the context menu option?
For google,
Process.Start("https://www.google.com");
For yahoo,
Process.Start("https://www.yahoo.com");
etc.
Why not add your ContextMenu right when your Form loads rather than every time that the user right click your DataGridView which means that you have to add the Context Menu every time the user rights click your DatGridView.
Secondly, instead of ContextMenu make a ContextMenuStrip instead which more at home with DataGridView. So, your code would look like:
ContextMenuStrip a = new ContextMenuStrip();
public Form1()
{
InitializeComponent();
this.Load += new EventHandler(Form1_Load);
}
void Form1_Load(object sender, EventArgs e)
{
Image img = null;
a.Items.Add("Google", img, new System.EventHandler(ContextMenuClick));
a.Items.Add("Yahoo", img, new System.EventHandler(ContextMenuClick));
dataGridView1.ContextMenuStrip = a;
}
Then your EventHandler would look like this:
private void ContextMenuClick(Object sender, System.EventArgs e)
{
switch (sender.ToString().Trim())
{
case "Google":
Process.Start("https://www.google.com");
break;
case "Yahoo":
Process.Start("https://www.yahoo.com");
break;
}
}
And your DataGridView Mouse Click handler would look this:
void dataGridView1_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
int currentMouseOverRow = dataGridView1.HitTest(e.X, e.Y).RowIndex;
if (currentMouseOverRow >= 0)
{
a.Items.Add(string.Format("", currentMouseOverRow.ToString()));
}
a.Show(dataGridView1, new Point(e.X, e.Y));
}
}
You have to use ClickEvent for your menu items:
//menu items constructor
a.MenuItems.Add(new MenuItem("Google", new System.EventHandler(this.MenuItemClick)));
a.MenuItems.Add(new MenuItem("Yahoo", new System.EventHandler(this.MenuItemClick)));
private void MenuItemClick(Object sender, System.EventArgs e)
{
var m = (MenuItem)sender;
if (m.Text == "Google")
{
Process.Start("https://www.google.com");
}
}
How do you auto highlight text in a textbox control when the control gains focus.
In Windows Forms and WPF:
textbox.SelectionStart = 0;
textbox.SelectionLength = textbox.Text.Length;
If you want to do it for your whole WPF application you can do the following:
- In the file App.xaml.cs
protected override void OnStartup(StartupEventArgs e)
{
//works for tab into textbox
EventManager.RegisterClassHandler(typeof(TextBox),
TextBox.GotFocusEvent,
new RoutedEventHandler(TextBox_GotFocus));
//works for click textbox
EventManager.RegisterClassHandler(typeof(Window),
Window.GotMouseCaptureEvent,
new RoutedEventHandler(Window_MouseCapture));
base.OnStartup(e);
}
private void TextBox_GotFocus(object sender, RoutedEventArgs e)
{
(sender as TextBox).SelectAll();
}
private void Window_MouseCapture(object sender, RoutedEventArgs e)
{
var textBox = e.OriginalSource as TextBox;
if (textBox != null)
textBox.SelectAll();
}
In ASP.NET:
textbox.Attributes.Add("onfocus","this.select();");
It is very easy to achieve with built in method SelectAll
Simply cou can write this:
txtTextBox.Focus();
txtTextBox.SelectAll();
And everything in textBox will be selected :)
If your intention is to get the text in the textbox highlighted on a mouse click you can make it simple by adding:
this.textBox1.Click += new System.EventHandler(textBox1_Click);
in:
partial class Form1
{
private void InitializeComponent()
{
}
}
where textBox1 is the name of the relevant textbox located in Form1
And then create the method definition:
void textBox1_Click(object sender, System.EventArgs e)
{
textBox1.SelectAll();
}
in:
public partial class Form1 : Form
{
}
I think the easiest way is using TextBox.SelectAll like in an Enter event:
private void TextBox_Enter(object sender, EventArgs e)
{
((TextBox)sender).SelectAll();
}
Here's the code I've been using. It requires adding the attached property to each textbox you wish to auto select. Seeing as I don't want every textbox in my application to do this, this was the best solution to me.
public class AutoSelectAll
{
public static bool GetIsEnabled(DependencyObject obj)
{
return (bool)obj.GetValue(IsEnabledProperty);
}
public static void SetIsEnabled(DependencyObject obj, bool value)
{
obj.SetValue(IsEnabledProperty, value);
}
static void ue_Loaded(object sender, RoutedEventArgs e)
{
var ue = sender as FrameworkElement;
if (ue == null)
return;
ue.GotFocus += ue_GotFocus;
ue.GotMouseCapture += ue_GotMouseCapture;
}
private static void ue_Unloaded(object sender, RoutedEventArgs e)
{
var ue = sender as FrameworkElement;
if (ue == null)
return;
//ue.Unloaded -= ue_Unloaded;
ue.GotFocus -= ue_GotFocus;
ue.GotMouseCapture -= ue_GotMouseCapture;
}
static void ue_GotFocus(object sender, RoutedEventArgs e)
{
if (sender is TextBox)
{
(sender as TextBox).SelectAll();
}
e.Handled = true;
}
static void ue_GotMouseCapture(object sender, MouseEventArgs e)
{
if (sender is TextBox)
{
(sender as TextBox).SelectAll();
}
e.Handled = true;
}
public static readonly DependencyProperty IsEnabledProperty = DependencyProperty.RegisterAttached("IsEnabled", typeof(bool),
typeof(AutoSelectAll), new UIPropertyMetadata(false, IsEnabledChanged));
static void IsEnabledChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var ue = d as FrameworkElement;
if (ue == null)
return;
if ((bool)e.NewValue)
{
ue.Unloaded += ue_Unloaded;
ue.Loaded += ue_Loaded;
}
}
}
The main change I made here was adding a loaded event to many of the examples I've seen. This allows the code to continue working after it's unloaded (ie. a tab is changed). Also I included code to make sure the text gets selected if you click on the textbox with the mouse, and not just keyboard focus it. Note: If you actually click on the text in the textbox, the cursor is inserted between the letters as it should.
You can use this by including the following tag in your xaml.
<TextBox
Text="{Binding Property}"
Library:AutoSelectAll.IsEnabled="True" />
If you need to do this for a large number of textboxes (in Silverlight or WPF), then you can use the technique used in the blog post: http://dnchannel.blogspot.com/2010/01/silverlight-3-auto-select-text-in.html. It uses Attached Properties and Routed Events.
You can use this, pithy. :D
TextBox1.Focus();
TextBox1.Select(0, TextBox1.Text.Length);
If you wanted to only select all the text when the user first clicks in the box, and then let them click in the middle of the text if they want, this is the code I ended up using.
Just handling the FocusEnter event doesn't work, because the Click event comes afterwards, and overrides the selection if you SelectAll() in the Focus event.
private bool isFirstTimeEntering;
private void textBox_Enter(object sender, EventArgs e)
{
isFirstTimeEntering = true;
}
private void textBox_Click(object sender, EventArgs e)
{
switch (isFirstTimeEntering)
{
case true:
isFirstTimeEntering = false;
break;
case false:
return;
}
textBox.SelectAll();
textBox.SelectionStart = 0;
textBox.SelectionLength = textBox.Text.Length;
}
if you want to select all on "On_Enter Event" this won't Help you achieving your goal.
Try using "On_Click Event"
private void textBox_Click(object sender, EventArgs e)
{
textBox.Focus();
textBox.SelectAll();
}
On events "Enter" (for example: press Tab key) or "First Click" all text will be selected. dotNET 4.0
public static class TbHelper
{
// Method for use
public static void SelectAllTextOnEnter(TextBox Tb)
{
Tb.Enter += new EventHandler(Tb_Enter);
Tb.Click += new EventHandler(Tb_Click);
}
private static TextBox LastTb;
private static void Tb_Enter(object sender, EventArgs e)
{
var Tb = (TextBox)sender;
Tb.SelectAll();
LastTb = Tb;
}
private static void Tb_Click(object sender, EventArgs e)
{
var Tb = (TextBox)sender;
if (LastTb == Tb)
{
Tb.SelectAll();
LastTb = null;
}
}
}
I don't know why nobody mentioned that but you can also do this, it works for me
textbox.Select(0, textbox.Text.Length)
textBoxX1.Focus();
this.ActiveControl = textBoxX1;
textBoxX1.SelectAll();
In window form c#. If you use Enter event it will not work. try to use MouseUp event
bool FlagEntered;
private void textBox1_MouseUp(object sender, MouseEventArgs e)
{
if ((sender as TextBox).SelectedText == "" && !FlagEntered)
{
(sender as TextBox).SelectAll();
FlagEntered = true;
}
}
private void textBox1_Leave(object sender, EventArgs e)
{
FlagEntered = false;
}
textbox.Focus();
textbox.SelectionStart = 0;
textbox.SelectionLength = textbox.Text.Length;