How to write from textbox to file? C# [closed] - c#

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Closed 9 years ago.
Questions concerning problems with code you've written must describe the specific problem — and include valid code to reproduce it — in the question itself. See SSCCE.org for guidance.
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Improve this question
I want to get data from textbox and write it to file. I have this code, but it's not working.
private void Button_Click_2(object sender, RoutedEventArgs e)
{
string info = textbox2.Text;
List<string> data= new List<string>();
data.Add(info);
String line = File.WriteAllLines(filename, data);
}
What am I doing wrong?

1. you are trying to store the return value of the function File.WriteAllLines() into String variable line but File.WriteAllLines() does not return anything it's return type is void
2. you can use File.WriteAllText() function to write your string entered in TextBox.
Try This :
private void Button_Click_2(object sender, RoutedEventArgs e)
{
File.WriteAllText(filename, textbox2.Text);
}

Related

Fill combobox according to month of days value [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Closed 9 years ago.
Questions concerning problems with code you've written must describe the specific problem — and include valid code to reproduce it — in the question itself. See SSCCE.org for guidance.
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Improve this question
I am doing a c# project of making "Age Calculator" and I have the following problem:
When i select February from month's combo box then in date's combo box it shows 1-31 numbers. But i want to show 1-29.How can i solve this without database?
private void ListBox1_SelectedValueChanged(object sender, EventArgs e)
{
if (ListBox1.SelectedValue == "February")
{
for (int i=1; i<=29; i++)
Listbox2.Items.Add(i.ToString());
}
}

How to Send a Object name as argument to function? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Closed 9 years ago.
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Questions concerning problems with code you've written must describe the specific problem — and include valid code to reproduce it — in the question itself. See SSCCE.org for guidance.
Improve this question
I want write a program that :
In textbox type a picturebox name and in other textbox type location number,then press button to move that picturebox that name is equal textbox1 to that location.
my question is how I can send a object(picturebox) to a Function?
If I understand you correctly you want to move a picture box by entering its name into a textbox? Then this is a possibility:
private void button_click(object sender, EventArgs e)
{
string pBoxName = textbox1.Text;
// I don't quite understand what you mean by 'location number'
int newPos = int.Parse(textbox2.Text);
// boxList is a List<PictureBox>
PictureBox pBox = boxList.Where(x => x.Name.Equals(pBoxName)).FirstOrDefault();
if(pBox != null)
{
MoveTheBox(pBox, newPos);
}
}
private void MoveTheBox(PictureBox box, int newPos)
{
// move the box
}

how controling A Clickable pictureBox ? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Closed 9 years ago.
Improve this question
I have a pictureBox and I want to perform a some statement when the image is clicked, So how can i check when the pictureBox is selected inside an if statement ?
Add an event handler to the MouseClick event, and then add in the code you want to run within the handler method:
MyPictureBox.MouseClick += new MouseEventHandler(MyEventHandler);
private void MyEventHandler(object sender, MouseEventArgs e)
{
//your code here
}

How to add a plus minus sign to a label [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Closed 9 years ago.
Improve this question
Here my requirement is to assign + and - to a number both at a time to a number in the label as shown in bellow image in c# asp.net!
Use unicode character "PLUS-MINUS SIGN".
Its code point is (U+00B1)
label.Text = "\u00B1"
The Unicode character Plus-Minus-Sign has the code 00B1, and the unicode escape sequence in C# is \u followed by 4 hex-digits.
you could add two other labels with an other font size and a Click-Event to count up or down.
private void minus_Click(object sender, EventArgs e)
{
this.number.Text = Convert.ToInt32(this.number.Text) - 1 + "";
}
private void plus_Click(object sender, EventArgs e)
{
this.number.Text = Convert.ToInt32(this.number.Text) + 1 + "";
}
where "number" ist you number label.

TextBox DateTime format [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Questions must demonstrate a minimal understanding of the problem being solved. Tell us what you've tried to do, why it didn't work, and how it should work. See also: Stack Overflow question checklist
Closed 9 years ago.
Improve this question
Im wondering how to make my textbox format "DD.MM.YYYY" that after load form the textbox will be filled with "__ .__ .__" and those spaces and dots cannot be deleted. Is there any way to do that?
Thanks
Why don't you use a MaskedTextbox? Use the following as mask, you can set the mask either at design time or at form load.
private void Form1_Load(object sender, EventArgs e)
{
maskedTextBox1.Mask = "00.00.0000";
}
You would probably be looking at something like Ajax Masked Edit
Another way to do it would be to use a jquery plugin
You could use a MaskedTextbox that will do exactly what you describe. A DateTimePicker might be better though...

Categories