Excel Formula If This Or This Or This Equals That Opening and Reading a Text File Using the OpenFileDialog Form in C#.NET

You are searching about Excel Formula If This Or This Or This Equals That, today we will share with you article about Excel Formula If This Or This Or This Equals That was compiled and edited by our team from many sources on the internet. Hope this article on the topic Excel Formula If This Or This Or This Equals That is useful to you.

Opening and Reading a Text File Using the OpenFileDialog Form in C#.NET

The OpenFileDialog object interacts with the computer’s API (application programming interface) to present the available files to the user and retrieve the user’s file selection into the program. This object is part of the System.Windows.Forms library so no additional usage references are required.

This dialog can be customized to show the file type, starting directory, and title to display in the dialog.

When you limit the file type to the extension .txt as we did in this sample code, only those specific file types will be visible to the user even though they have the option to select all files.

Also.

Let’s review the function below (button click event in this example) that is used to interact with this OpenFileDialog.

private void btnOpenTextFile_Click ( object sender , EventArgs e );

First, declare a variable to hold the user’s file selection.

String input = string.Empty;

Because OpenFileDialog is an object, we create a new instance by declaring a variable with the data type OpenFileDialog and setting it equal to the new instance.

OpenFileDialog dialog = new OpenFileDialog();

Now we set the file type we want to be available to the user. In this case, text files.

dialogue filter =

“txt files (*.txt)|*.txt | all files (*.*)|*.*”;

Next is the starting directory for the dialog and the title for the dialog box is set.

dialog.InitialDirectory = “C:”;

dialog.Title = “Select Text File”;

Once the dialog properties are set, it is ready to be presented to the user.

if (dialog.ShowDialog() == DialogResult.OK)

strFileName = dialog.FileName;

if (strFileName == String.Empty)

return;//User did not select a file to open

If the user selects a file, then the value of the DialogResult property will be “OK” and we will also have the name and path of the file.

Now we can use StreamWriter and StreamReader to read/write text file.

Video about Excel Formula If This Or This Or This Equals That

You can see more content about Excel Formula If This Or This Or This Equals That on our youtube channel: Click Here

Question about Excel Formula If This Or This Or This Equals That

If you have any questions about Excel Formula If This Or This Or This Equals That, please let us know, all your questions or suggestions will help us improve in the following articles!

The article Excel Formula If This Or This Or This Equals That was compiled by me and my team from many sources. If you find the article Excel Formula If This Or This Or This Equals That helpful to you, please support the team Like or Share!

Rate Articles Excel Formula If This Or This Or This Equals That

Rate: 4-5 stars
Ratings: 1434
Views: 74878233

Search keywords Excel Formula If This Or This Or This Equals That

Excel Formula If This Or This Or This Equals That
way Excel Formula If This Or This Or This Equals That
tutorial Excel Formula If This Or This Or This Equals That
Excel Formula If This Or This Or This Equals That free
#Opening #Reading #Text #File #OpenFileDialog #Form #CNET

Source: https://ezinearticles.com/?Opening-and-Reading-a-Text-File-Using-the-OpenFileDialog-Form-in–C.NET&id=2455765