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How to make a link in RichTextBox clickable

I am currently using WinForms Application and it seems that I have ran into a problem. I have a button that when pressed it outputs a link in a RichTextBox. However, the link is highlighted in blue but when I click it does not open in my browser. Here is the code(Note that https://something.com/ represents an actual link.):
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Project
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
richTextBox1.Text = "https://something.com/" + textBox1.Text;
}
private void richTextBox1_TextChanged(object sender, EventArgs e)
{
}
}
}

How can I make the custom button and ribbon I created in C# for a VSTO application visible in Outlook (MS Office 365 ProPlus)?

Using C#, I created a VSTO application for Outlook in MS Office 365 ProPlus. I have a custom button and ribbon, which I would like to have displayed in my Outlook ribbon. The code I created does everything I wrote in the logic, except it does not display.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Microsoft.Office.Tools.Ribbon;
namespace OutlookAddIn1
{
public partial class Ribbon1
{
private void Ribbon1_Load(object sender, RibbonUIEventArgs e)
{
}
private void button1_Click(object sender, RibbonControlEventArgs e)
{
// ThisAddIn mainapp = new ThisAddIn();
if (((RibbonToggleButton)sender).Checked)
{
MessageBox.Show("Hello from the buttom");
}
else
{
MessageBox.Show("Hello from the else");
}
}
}
}

ShowDialog not opening form Visual Studio

when i try to open a form on visual studio, it doesn't work. i've tried many solutions but it still doesn't work, could the problem be in a different code? here is the code that i am using:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace VBR_Application
{
public partial class addNewGT : Form
{
public addNewGT()
{
InitializeComponent();
}
private void addOnline_Click(object sender, EventArgs e)
{
var newForm = new AddOnline();
newForm.Show();
}
}
}

Did you mean?
private void addOnline_Click(object sender, EventArgs e)
{
var newForm = new Form();
newForm.Show();
}

If you want show a built in dialog you can use this one
MessageBox.Show(this, "Title", "Message");
If you want a custom dialog you can also use this one
_FormDialog dialog = new _FormDialog(this);
dialog.ShowDialog();
_FormDialog is the widows form you have created.

Text between two forms with color in C#

I have 2 forms with a main window and a second window. The main window (Form1) shall get text from the second window (Form2)
My second window (Form2) can write text from form 2 to form 1. In the class I can choose color for my text but my problem is that when I push the button who shall send the text it just comes the text without the color I choose so its just black text in Form1 when I send example yellow.
I'm not a C# expert since I'm pretty new at this. I'm sure its a pretty simple problem to fix but for me its not so easy.
Form1.cs:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace tester
{
public partial class Form1 : Form
{
public string text;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Form2 NewForm2 = new Form2(this);
NewForm2.Show();
}
internal void populate()
{
richTextBox1.Text = text;
}
}
Form2.cs:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Tester
{
public partial class Form2 : Form
{
Form1 texting;
public Form2(Form1 iForm)
{
texting = iForm;
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
texting.text = richTextBox1.Text;
texting.populate();
this.Close();
}
private void button2_Click(object sender, EventArgs e)
{
if ( MyColorDialog.ShowDialog() != DialogResult.Cancel)
{
richTextBox1.ForeColor = MyColorDialog.Color;
}
}
}

Just as you are making public string text in your Form1, you could make a public Color rictTextBoxColor property. Then setting it as well, and referring to it in your populate method

loading information from a file into a window

I have the following form. The first button opens a text file and displays the file in the rich text box in the form. The second button opens another window. What I want is for that window to be pre-populated with the data that is in that text file...
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace HomeInventory2
{
public partial class Form2 : Form
{
OpenFileDialog openFileDialog1 = new OpenFileDialog();
public Form2()
{
InitializeComponent();
}
private void button1_Click(object sender, System.EventArgs e)
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.RichText);
}
}
private void button2_Click(object sender, EventArgs e)
{
Application.Run(new Form1());
}
}
}
The form that needs to be populated
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using HomeInventory2.Domain;
using HomeInventory2.Business;
namespace HomeInventory2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void label1_Click(object sender, EventArgs e)
{
}
private void submitButton_Click(object sender, EventArgs e)
{
CreateInventory create = new CreateInventory();
create.ItemAmount = textBoxAmount.Text;
create.ItemCategory = textBoxCategories.Text;
create.ItemProperties = textBoxValue.Text;
create.ItemValue = textBoxValue.Text;
InventoryMngr invtryMngr = new InventoryMngr();
invtryMngr.Create(create);
}
}
}

Create a new constructor which takes a string overload. When you open the new Form, pass in the text date and fill the textbox.
//in the new form that opens up
public Form1(string prepopulated)
{
InitializeComponent();
myRichTextbox.Text = prepopulated;
}
And call it from your click event like this:
//in the first form
private void button2_Click(object sender, EventArgs e)
{
Application.Run(new Form1(richTextBox1.Text));
}
If your content is more complicated than a simple text file, you can use RichTextBox.Document instead and pass that instead of the string. Change the overload to
Form1(FlowDocument prepopulated)
and call it like this
Application.Run(new Form1(richTextBox1.Document));