how can i show different message box depend on the tab control.
if i click on tab header of xtrapage1 messagebox.show("page1") and if i click on tab header of xtrapage2 messagebox.how("page2")
the code i use was in event mouse down
private void xtraTabControl1_MouseDown(object sender, MouseEventArgs e)
{
DevExpress.XtraTab.ViewInfo.XtraTabHitInfo hi = xtraTabControl1.CalcHitInfo(e.Location);
if (hi.HitTest == DevExpress.XtraTab.ViewInfo.XtraTabHitTest.PageHeader)
{
MessageBox.Show("a");
}
}
it keeps showing "a"
Try this
private void xtraTabControl1_MouseDown(object sender, MouseEventArgs e)
{
DevExpress.XtraTab.ViewInfo.XtraTabHitInfo hi = xtraTabControl1.CalcHitInfo(e.Location);
if (hi.HitTest == DevExpress.XtraTab.ViewInfo.XtraTabHitTest.PageHeader)
{
MessageBox.Show(hi.Page.Text.ToString()) );
if(hi.Page.Name == xtraTabPage1.Text.ToString())
MessageBox.Show("a");
}
}
Try this
if (YourTabControl.SelectedTab.Name == "tabName" )
{
// do stuff
}
Or you can achieve the same functionality on selectedIndexChanged event of tab.
private void YourTabControl_SelectedIndexChanged(object sender, EventArgs e)
{
if (YourTabControl.SelectedTab == YourTabControl.TabPages["YourTabName"])
{
// your matched condition.
}
}
Related
private void tabPage2_Click(object sender, EventArgs e)
{
}
hello i have one tabconrol in my form this name is "tabControl1" & i
have 4 tabpage in tabControl1 i want when i click on tabpage1 run some
code when i click tabpage2 run some code too & ...
how can i ?
i think if condition is not true or i dont know i must wite code in
which event
i use tabPage1_Click event
tnx for help
I believe you're looking for the SelectedIndexChanged event:
private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
{
MessageBox.Show(tabControl1.SelectedIndex.ToString());
}
This will display 0, 1, 2, 3 etc. depending on which tab page is selected. First one is 0, second is 1 and so on.
You can register on tabControls clicked event
private void tabControl1_Click(object sender, EventArgs e)
{
MouseEventArgs args = e as MouseEventArgs;
if (args.Button == MouseButtons.Left)
{
if (tabControl1.GetTabRect(0).Contains(args.Location))
{
//tabPage1 header clicked
}
else if (tabControl1.GetTabRect(1).Contains(args.Location))
{
//tabPage2 header clicked
}
}
}
You can try this code:
private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
{
int indexOfSelectedTab = tabControl1.SelectedIndex;
switch(indexOfSelectedTab)
{
case 0:
//code for tabPage0
break;
case 1:
//code for tabPage1
break;
default:
break;
}
}
Edit:
You need to add event to your TabControl too.
tabControl1.SelectedIndexChanged += tabControl1_SelectedIndexChanged;
How can I make button property set to enabled=true after all my textboxes are not empty?
I'm learning programming and my apps are simple.
I know how to enable this property when one of my textboxes have text but this is not the case.
Use case is that user need to put data in both textboxes and after that will be able to click btn.
How in most simple way can I validate all form and then enable button?
There are just 2 tb:
https://i.imgur.com/JUslNWE.png
You need to create a TextBox_TextChanged event and subscribe to all text boxes.
private void TextBox_TextChanged(object sender, EventArgs e)
{
int notEmptyTextBoxCount = 0;
int textBoxCount = 0;
foreach (var item in Controls)
{
if (item is TextBox txtb)
{
textBoxCount++;
if (txtb.Text != String.Empty)
notEmptyTextBoxCount++;
}
}
if (textBoxCount == notEmptyTextBoxCount)
button.Enabled = true;
else
button.Enabled = false;
}
Thanks guys for all feedback.
I have managed to do this this way:
private void ValidateTextBoxes()
{
if (loginTextBox.Text.Length != 0 && passTextBox.Text.Length != 0)
{
generateHashBtn.Enabled = true;
}
else
{
generateHashBtn.Enabled = false;
}
}
private void TextBox1_TextChanged(object sender, EventArgs e)
{
ValidateTextBoxes();
}
private void TextBox2_TextChanged(object sender, EventArgs e)
{
ValidateTextBoxes();
}
i already have code when user press key Enter on keyboard, it return tab and "jump" to next field, its working great, its possible make it for 2 or 3 textbox, problem when need make it on multiple textbox like 20 textbox for each form, its just not work.
See code:
// Detect if Enter key is pressed on each text box, mute sound enter "ding" sound and replace Enter for tab (problem that have make it for each textbox)
private void txtAltura_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Enter)
{
e.Handled = true; //Silenciar Enter
SendKeys.Send("{TAB}");
}
}
private void txtLargura_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Enter)
{
e.Handled = true; //Silenciar Enter
SendKeys.Send("{TAB}");
}
}
private void txtProfundidade_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Enter)
{
e.Handled = true; //Silenciar Enter
SendKeys.Send("{TAB}");
}
}
//execute keypress command when enter is typed on textbox
private void txtProfundidade_TextChanged(object sender, EventArgs e)
{
if (txtProfundidade.Text != "") { foreach (char c in txtProfundidade.Text.ToCharArray()) txtProfundidade_KeyPress(sender, new KeyPressEventArgs(c)); }
}
private void txtLargura_TextChanged(object sender, EventArgs e)
{
if (txtLargura.Text != "") { foreach (char c in txtLargura.Text.ToCharArray()) txtLargura_KeyPress(sender, new KeyPressEventArgs(c)); }
}
private void txtAltura_TextChanged(object sender, EventArgs e)
{
if (txtAltura.Text != ""){foreach (char c in txtAltura.Text.ToCharArray()) txtAltura_KeyPress(sender, new KeyPressEventArgs(c));}
}
Hope make it better.
Thanks in advance..
if its windows form app can use this, this will replace tab key press with Enter key
protected override bool ProcessKeyPreview(ref Message m)
{
if (m.Msg == 0x0100 && (int)m.WParam == 13)
{
this.ProcessTabKey(true);
}
return base.ProcessKeyPreview(ref m);
}
From what I understand, you're trying to figure out a way to assign event handlers to multiple textbox controls and don't want to write a handler for each one. If that's the case, try this:
private void Form1_Load(object sender, EventArgs e)
{
foreach (TextBox textBox in this.Controls.OfType<TextBox>())
{
textBox.KeyDown += new KeyEventHandler(textBox_KeyDown);
}
}
void textBox_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
e.Handled = true;
SendKeys.Send("{TAB}");
}
}
This will assign a handler to each textbox control on the form.
That worked perfectly well.
I also have to repeat this on each textbox to check if all codes was filled and update statusbar:
private void txtAltura_TextChanged(object sender, EventArgs e)
{
testePreenchidoecalculo();
}
private void txtLargura_TextChanged(object sender, EventArgs e)
{
testePreenchidoecalculo();
}
private void txtProfundidade_TextChanged(object sender, EventArgs e)
{
testePreenchidoecalculo();
}
Its possible to make it better ?
Please, I want to know how to make two events on one button like: when I first click on the button display an image and while still in debugging mode the second time I click
display another image. What are some ways to do this?
You can make something like:
protected void Button1Click(object sender, EventArgs e)
{
if (Img1.Visible == false)
{
Img1.Visible = true;
}
else
{
Img2.Visible = true;
}
}
I don't think you need two (or more) events to do what you want, you only need to trace how many times you clicked the button, for example using an instance variable.
private int clicks = 0;
protected void myButton_Click(object sender, EventArgs e)
{
if(clicks == 1)
{
// do something
}
if(clicks == 2)
{
// do other things
}
if(clicks > 2)
{
// something else
}
clicks++;
}
What about something like this: just make sure to declare the counter outside the button
int clickedCount = 0;
private void button1_Click(object sender, EventArgs e)
{
clickedCount++;
if (clickedCount % 2 == 0) { pictureBox1.ImageLocation = #"path"; } else { pictureBox1.ImageLocation = #"path"; }
}
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;