Develop Reference

Hide panel in usercontrol when button on main form clicked

I want to hide panel in UserControl when button clicked in my main form I saw these codes:
public void button1_Click(object sender, EventArgs e)
{
if(ButtonClick != null)
ButtonClick(this, e);
}
obj.ButtonClick += (Sender, e) =>
{
splitContainer1.Panel2.Controls.Add(obj2);
};
but I don't know how to use it for my project I think it has to be Reverse in project

Try this:
public void button1_Click(object sender, EventArgs e)
{
if(ButtonClick != null)
ButtonClick(this, e);
}
obj.ButtonClick += (Sender, e) =>
{
splitContainer1.Panel2.Visible = false;
};
Also check this question for more information: Hide/Show Windows Forms panel in C#

How to copy, paste, cut in FastColoredTextBox?

I need three functions: Copy, Paste, Cut ,
For a FastColoredTextBox.. so far with my methods, the job is done but afterwards,
the cursor's position get changed and I got no clue on how to keep it where it
was before.
Here's my methods:
private void OnMouseMenuCut(object sender, EventArgs e)
{
var sPoint = rtbScript.SelectionStart;
var ePoint = rtbScript.SelectionLength;
var text = rtbScript.SelectedText;
rtbScript.Text = rtbScript.Text.Remove(sPoint, ePoint);
Clipboard.SetText(text.Replace("\n", "\r\n"));
rtbScript.Text = rtbScript.Text.Insert(sPoint, text);
}
private void OnMouseMenuCopy(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(rtbScript.SelectedText)) return;
Clipboard.SetText(rtbScript.SelectedText.Replace("\n", "\r\n"));
}
private void OnMouseMenuPaste(object sender, EventArgs e)
{
if (!Clipboard.ContainsText()) return;
var index = rtbScript.SelectionStart;
rtbScript.Text = rtbScript.Text.Insert(index, Clipboard.GetText());
}
Also, If there's a better way to do those functions, please post..
Thanks!

For a RichTextBox your code has more issues than loosing the Cursor position, It also looses all formatting! Here are versions that should work better:
private void OnMouseMenuCut(object sender, EventArgs e)
{
var sPoint = rtbScript.SelectionStart;
var text = rtbScript.SelectedText;
rtbScript.Cut();
Clipboard.SetText(text.Replace("\n", "\r\n"));
rtbScript.SelectionStart = sPoint;
}
private void OnMouseMenuCopy(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(rtbScript.SelectedText)) return;
Clipboard.SetText(rtbScript.SelectedText.Replace("\n", "\r\n"));
}
private void OnMouseMenuPaste(object sender, EventArgs e)
{
if (!Clipboard.ContainsText()) return;
var index = rtbScript.SelectionStart;
rtbScript.SelectedText = Clipboard.GetText();
rtbScript.SelectionStart = index + Clipboard.GetText().Length;
}
Note: You must never change the Text property of a RTB or else you will mess up the formating!
Since you wrote that this also works with your FastColoredTextBox I have undeleted the solution..

In the current version of FCTB, these methods already exist inside the FCTB.cs file. They just need to be linked up.

How to make one event to identify whether multiple radio buttons are checked?

I have the following code which checks each radio button (Temp30, Temp40 and Temp60) and does the necessary things such as turning the wash temperature light on etc...
I want to create an event which handles all 3 radio buttons. I thought it could possibly have something to do with the groupbox they are in? (it is called TempGroupBox)
Any help would be much appreciated!
private void Temp30_CheckedChanged(object sender, EventArgs e)
{
if (Temp30.Checked)
{
MainDisplayLabel.Text = (" SELECT SPIN SPEED");
WashTempLight.Visible = true;
WashTempLight.Image = Properties.Resources._30degrees;
SpeedGroupBox.Enabled = true;
}
}
private void Temp40_CheckedChanged(object sender, EventArgs e)
{
if (Temp40.Checked)
{
MainDisplayLabel.Text = (" SELECT SPIN SPEED");
WashTempLight.Visible = true;
WashTempLight.Image = Properties.Resources._40degrees;
SpeedGroupBox.Enabled = true;
}
}
private void Temp60_CheckedChanged(object sender, EventArgs e)
{
if (Temp60.Checked)
{
MainDisplayLabel.Text = (" SELECT SPIN SPEED");
WashTempLight.Visible = true;
WashTempLight.Image = Properties.Resources._60degrees;
SpeedGroupBox.Enabled = true;
}
}

You can bind all radioButton's event to the same handler and use sender parameter to get the control that the action is for.
private void Temps_CheckedChanged(object sender, EventArgs e)
{
string checkedName = ((RadioButton)sender).Name;
if(checkedName == "Temp40")
{
...
}
else if(checkedName == "Temp60")
{
...
}
}
You can add event handler for all RadioBUttons's like that after InitializeComponent():
var radioButtons =this.Controls.OfType<RadioButton>();
foreach (RadioButton item in radioButtons)
{
item.CheckedChanged += Temps_CheckedChanged;
}

C# checkedlistbox mouse enter/leave error

I want my checkedlistbox to expand to a certain size when the mouse enters and then go back to a its original size after mouse leaves. Below is the code is have. However, I receive an error when i have another program selected and my mouse goes over the checkedlistbox while the application is not active.
Any suggestions on how to fix?
private void checkedListBox1_MouseEnter(object sender, EventArgs e)
{
Search.ActiveForm.Height = 552;
checkedListBox1.Height = 130;
}
private void checkedListBox1_MouseLeave(object sender, EventArgs e)
{
Search.ActiveForm.Height = 452;
checkedListBox1.Height = 34;}
Error Code - Object Reference not set to an instance of an object.

Try this
private void checkedListBox1_MouseEnter(object sender, EventArgs e)
{
checkedListBox1.Size = new Size(Width,Height);
}

This of course would work so that no exception is thrown, but I hope it's also what you want:
private void checkedListBox1_MouseEnter(object sender, EventArgs e)
{
if(Search.ActiveForm == null) return;
Search.ActiveForm.Height = 552;
checkedListBox1.Height = 130;
}
private void checkedListBox1_MouseLeave(object sender, EventArgs e)
{
if(Search.ActiveForm == null) return;
Search.ActiveForm.Height = 452;
checkedListBox1.Height = 34;
}

Tooltip not showing for nested control

I have the following piece of code that works great in all but one instance.
private void tbxLastName_EditValueChanging(object sender, DevExpress.XtraEditors.Controls.ChangingEventArgs e)
{
GetRemainingChars(sender);
}
public void GetRemainingChars(object sender)
{
var control = sender as TextEdit;
var maxChars = control.Properties.MaxLength;
tipCharacterCounter.Show(control.Text.Length + "/" + maxChars, this, control.Location.X, control.Location.Y - control.Height);
}
I just repeat this process from any textbox. Unfortunately, I have one control that is more complicated and I cannot get this to work. The Event portion looks like this -->
private void memDirectionsToAddress_Popup(object sender, EventArgs e)
{
MemoExPopupForm popupForm = (sender as DevExpress.Utils.Win.IPopupControl).PopupWindow as MemoExPopupForm;
MemoEdit meDirections = popupForm.Controls[2] as MemoEdit;
meDirections.EditValueChanging += new DevExpress.XtraEditors.Controls.ChangingEventHandler(meDirections_EditValueChanging);
}
void meDirections_EditValueChanging(object sender, DevExpress.XtraEditors.Controls.ChangingEventArgs e)
{
GetRemainingChars(sender);
}
What I don't understand is if I replace the tipCharacterCounter portion with, say updating a label, it works fine. It's like the ToolTip is hidden or something but I have tried feeding Show() different points to no avail.
Ideas?

Which version of DXPerience are you using? I've tried the following code using DXperience 10.1.5 and it works fine here:
private void memoExEdit1_Popup(object sender, EventArgs e) {
MemoExPopupForm popupForm = (sender as DevExpress.Utils.Win.IPopupControl).PopupWindow as MemoExPopupForm;
MemoEdit meDirections = popupForm.Controls[2] as MemoEdit;
meDirections.EditValueChanging += new DevExpress.XtraEditors.Controls.ChangingEventHandler(meDirections_EditValueChanging);
}
void meDirections_EditValueChanging(object sender, DevExpress.XtraEditors.Controls.ChangingEventArgs e) {
GetRemainingChars(sender);
}
public void GetRemainingChars(object sender) {
TextEdit control = sender as TextEdit;
int maxChars = control.Properties.MaxLength;
tipCharacterCounter.ShowHint(control.Text.Length + "/" + maxChars, control, ToolTipLocation.RightBottom);
}