Category Archives: programs

Use the automatic code converters at developerFusion to convert C# code into Visual Basic, Ruby, and Python

Posted on June 25, 2018 by Rod Stephens

The developerFusion web site provides code converters that let you translate between C#, Visual Basic, Ruby, and Python. One of the most important uses for reflection is analyzing code to figure out what it does. Once you know what the … Continue reading →

Posted in programs, reflection, syntax | Tagged C#, C# programming, code conterver, code converters, convert code, example, example program, programs, Python, reflection, Ruby, syntax, translate code, VB, Visual Basic, Windows Forms programming | 5 Comments

Build an MRU list that uses project settings in C#

Posted on June 12, 2018 by RodStephens

The post Build an MRU list in C# explains how to build an MRU list (most recently used list). That example stores recently used files in the system Registry. This example does the same thing but it stores file information … Continue reading →

Posted in files, programs, registry | Tagged accelerator keys, accelerators, C#, C# programming, example, example program, files, most recently used file list, most recently used files, MRU, MRU list, programs, registry, Windows Forms programming | Leave a comment

Build an MRU list in C#

Posted on June 11, 2018 by Rod Stephens

An MRU list (most recently used file list) displays in the File menu the files that a program has used most recently. If the user selects a file from the menu, the program reopens that file. This example builds an … Continue reading →

Make the user enter a password to use a program in C#

Posted on May 2, 2018 by Rod Stephens

The example Display a simple password dialog before a program starts in C# displays a simple password form. It compares the value entered by the user with a string inside the program to decide whether the user entered the right … Continue reading →

Posted in cryptography, dialogs, programs | Tagged C#, C# programming, cryptography, decrypt, dialogs, encrypt, example, example program, password, programs, Windows Forms programming | 1 Comment

Run user-entered code that modifies the program’s form in C#

Posted on April 14, 2017 by RodStephens

The example Run user-entered code in C# shows how you can compile and execute code entered at run time. That example simply displays a message box and returns a DialogResult indicating which button the user pressed. This example shows how … Continue reading →

Posted in algorithms, miscellany, programs, reflection | Tagged algorithms, C#, C# compiler, C# programming, CodeDom, compile C# code, compile code, compiler, example, example program, miscellany, programs, reflection, run C# code, run code, user-entered code, Windows Forms programming | Leave a comment

Display memory usage in C#

Posted on December 12, 2016 by Rod Stephens

This program displays the computer’s total and free physical, virtual, and page file memory usage. When it starts, the following code displays the system’s memory information in the program’s ListView control. // Prepare the ListView and display values. private void … Continue reading →

Posted in memory, programs | Tagged C#, C# programming, example, example program, memory, memory usage, page file memory, page files, physical memory, programs, virtual memory, Windows Forms programming | Leave a comment

Evaluate numeric expressions that are entered by the user in C#

Posted on November 23, 2016 by Rod Stephens

This example shows one way to evaluate mathematical expressions entered by the user at runtime. Enter a numeric expression involving x and y in the upper text box. Then enter values for x and y in the lower text boxes … Continue reading →

Posted in algorithms, mathematics, miscellany, programs, reflection | Tagged algorithms, C#, C# programming, evaluate, evaluate expressions, example, example program, mathematics, miscellany, programs, reflection, Windows Forms programming | 2 Comments

List languages that you can compile at runtime in C#

Posted on November 22, 2016 by Rod Stephens

The example Run user-entered code in C# shows how to let the user enter C# code, compile at runtime, and execute the result, but how do you know what languages you can compile that way? You might guess C# and … Continue reading →

Posted in algorithms, miscellany, programs, reflection | Tagged algorithms, C#, C# compiler, C# programming, CodeDom, compile at runtime, compile C# code, compile code, compiler, example, example program, miscellany, programs, reflection, run C# code, run code, user-entered code, Windows Forms programming | 1 Comment

Run user-entered code in C#

Posted on November 21, 2016 by Rod Stephens

This example shows how to compile and run user-entered code at run time. The form includes the following using statements. using System.CodeDom.Compiler; using System.Reflection; The following code executes when you click the Run button. // Compile and execute the code. … Continue reading →

Let a thread call a form’s methods in C#

Posted on October 23, 2016 by Rod Stephens

When the user clicks the Start Thread button, this program runs a counter on a separate thread. Every second the counter updates the form’s Value variable. It then displays the thread’s number and the new Value in the ListBox at … Continue reading →