In this article about Filter Combobox Datasource C# .C# controls are located in the Toolbox of the development environment, and you use them to create objects on a form with a simple series of mouse clicks and dragging motions. Filter combobox using C# can displays a text box combined with a ListBox , which enables the user to select items from the list or enter a new value . In this tutorial, you will learn how to filtering data will display to textbox and datagridview , in detail. We can use Event Combobox SelectedIndexChanged to complete this tutorial.

Combobox SelectedIndexChanged event

The SelectedIndexChanged  event of a combobox fire when you change the selected item in a combobox. If you want to do something when you change the selection, you can write the program on SelectedIndexChanged  event. From the following code you can understand how to set values in the SelectedIndexChanged  event of a combobox.

This tutorial use Mysql for connection database and bind data. Let’s following this step for know about how to filtering data will display to Textbox and Datagridview:

  1. Create a new application project. In Visual Studio, on the menu click File> New  > Project. For more details, see the following menu on the display.


  1. Then will appear the window New Project like the look below.


  1. Write down the name of the project that will be created on a field Name. Specify the directory storage project by accessing the field Location. Next, give the name of the solution in the Solution Name. Then click OK.


  1. Create a new class for connection database to Mysql and write the following program listing :

  1. Create textbox,combobox,label properties in windows form like the below.


  1. Create Datagridview with properties like the below.


  1. Next step, Back to windows form and view code to write the following program listing:

  1. After you write down the program listings, press the F5 key to run the program and if you successfull connect your database the result is :




We have explained how to make  program Filter Combobox Datasource C#, for those of you who want to download the source code of the program also can. Hopefully this discussion is helpful to you.

You can see Filter Combobox Datasource C# from Github project in Here.

Thank you for reading this article about Filter Combobox Datasource C#, I hope this article is useful for you. Visit My Github about .Net Csharp in Here

Filter Combobox Datasource C#

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