Question

I am having a problem with this one error. I have to turn this in tonight and this is holding me up right now. Just not sure how to fix it. .VS 2019 .net framework windows forms

private void DisplayForm_Load(object sender, EventArgs e)
{
if (File.Exists("Employee.txt"))
{
using (StreamWriter sr = new StreamWriter("employee.txt"))
{
string employeeId = "";
while ((employeeId = sr.ReadLine()) != null)
{
Employee employee = new Employee(employeeId, sr.ReadLine(),
decimal.Parse(sr.ReadLine()), decimal.Parse(sr.ReadLine()));
Employee emp = employee;
employeeListBox.Items.Add(emp);
allEmployee.Add(emp);
}
}
}
else
{
employeeListBox.Items.Add("No Employees entered yet.");
}
}

private void printButton_Click(object sender, EventArgs e)
{
printDocument1.Print();
}

private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
int x = 75, y = 75;
foreach (Employee emp in allEmployee)
{
e.Graphics.DrawString(emp.ToString(),
new Font("Courier", 10, FontStyle.Regular),
Brushes.Black, x, y);
y += 14;
}
}

private void closeButton_Click(object sender, EventArgs e)
{
Close();
}

Severity   Code   Description   Project   File   Line   Suppression State
Error   CS1061   'StreamWriter' does not contain a definition for 'ReadLine' and no accessible extension method 'ReadLine' accepting a first argument of type 'StreamWriter' could be found (are you missing a using directive or an assembly reference?)   

This is the section that I am having problems with

private void DisplayForm_Load(object sender, EventArgs e)
{
if (File.Exists("Employee.txt"))
{
using (StreamWriter sr = new StreamWriter("employee.txt"))
{
string employeeId = "";
while ((employeeId = sr.ReadLine()) != null)
{
Employee employee = new Employee(employeeId, sr.ReadLine(),
decimal.Parse(sr.ReadLine()), decimal.Parse(sr.ReadLine()));
Employee emp = employee;
employeeListBox.Items.Add(emp);
allEmployee.Add(emp);
}
}
}
else
{
employeeListBox.Items.Add("No Employees entered yet.");
}
}

private void printButton_Click(object sender, EventArgs e)
{
printDocument1.Print();
}

private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
int x = 75, y = 75;
foreach (Employee emp in allEmployee)
{
e.Graphics.DrawString(emp.ToString(),
new Font("Courier", 10, FontStyle.Regular),
Brushes.Black, x, y);
y += 14;
}
}

private void closeButton_Click(object sender, EventArgs e)
{
Close();
}

Answer 1

First include the namespace"using System.IO;"

Please use following line instead of StreamWriter. As StreamWriter does not have ReadLine() methods it throws an error.

using (StreamReader sr = new StreamReader("employee.txt"))

As you have provided part of your code, I cud not provide the complete running code. But above two corrections would fix your issue.

Please let me know if you need any further help.