Asp.net upload text file

NET Ask Question. Asked 12 years, 8 months ago. Active 3 years, 2 months ago. Viewed 8k times. Improve this question. Waleed Eissa. Waleed Eissa Waleed Eissa 9, 16 16 gold badges 58 58 silver badges 78 78 bronze badges. Add a comment. Active Oldest Votes. ReadToEnd ;. Improve this answer. These properties are converted to attributes in the native HTML code.

They help define additional behavior for the FileUpload control. AllowMultiple: This property gets or sets a value that permits or restricts the user to select multiple files simultaneously. The default value is false, which means the user is not allowed to select multiple files by default. BackColor, ForeColor: This property gets or sets the background and the foreground color of the control. Enabled: This property gets or sets the value indicating whether the control is enabled or disabled.

The default value is true. Font: This property gets or sets the font of the text to be displayed in the control. There are plenty of styles and options such as bold, italics, underline, strikeout, etc.

Height, Width: These properties get or set the height and width of the control in the number of pixels. ID: This property gets or sets the unique identifier attribute to the control.

ToolTip: This property gets or sets the tooltip value to be displayed when the mouse pointer is hovered over the control. Visible: This property determines whether the control will be displayed on the UI or hidden. The default is true. Step 1: Create a new ASP.

Net WebApplication project. This will create a shell template with a working application with a Default. This tells ASP. For more information, see Introduction to ASP. On your development computer this is not typically an issue. However, when you publish your site to a hosting provider's web server, you might need to explicitly set those permissions.

If you run this code on a hosting provider's server and get errors, check with the hosting provider to find out how to set those permissions. In the previous example, you used WriteAllText to create a text file that's got just one piece of data in it. If you call the method again and pass it the same file name, the existing file is completely overwritten. However, after you've created a file you often want to add new data to the end of the file. You can do that using the AppendAllText method of the File object.

In the website, make a copy of the UserData. This code has one change in it from the previous example. The methods are similar, except that AppendAllText adds the data to the end of the file. Even if you don't need to write data to a text file, you'll probably sometimes need to read data from one. To do this, you can again use the File object. You can use the File object to read each line individually separated by line breaks or to read individual item no matter how they're separated.

This procedure shows you how to read and display the data that you created in the previous example. The code starts by reading the file that you created in the previous example into a variable named userData , using this method call:.

The code to do this is inside an if statement. When you want to read a file, it's a good idea to use the File. Exists method to determine first whether the file is available. The code also checks whether the file is empty. The body of the page contains two foreach loops, one nested inside the other. The outer foreach loop gets one line at a time from the data file. In this case, the lines are defined by line breaks in the file — that is, each data item is on its own line.

The inner loop splits each data line into items fields using a comma as a delimiter. Based on the previous example, this means that each line contains three fields — the first name, last name, and email address, each separated by a comma. The code illustrates how to use two data types, an array and the char data type. The array is required because the File. ReadAllLines method returns data as an array.

The char data type is required because the Split method returns an array in which each element is of the type char.

For information about arrays, see Introduction to ASP. You can use Microsoft Excel to save the data contained in a spreadsheet as a comma-delimited file. When you do, the file is saved in plain text, not in Excel format. Each row in the spreadsheet is separated by a line break in the text file, and each data item is separated by a comma.

You can use the code shown in the previous example to read an Excel comma-delimited file just by changing the name of the data file in your code.

Now, in this Web-Form page, we will be adding a asp. Search file control in asp. We will also be adding one button clicking which we will upload file on local drive in a specific folder and we will also be adding a label field and update it's text message once file is uploaded , so your complete Default.

Step 3: We will write C Code to upload file in asp. First, we are specifying folder path, then checking if folder exists or not, if not, create the folder.