why element.Text= not work

Question

Try to do next - i want to check if some information is already exist if csv file, if yes - open form with label, and put to this label information from file Code is next:

public void getEventTime(string filePath, string currDate, string currentDateTimeHM)
    {
        //reading the *.csv file and convert to the array of data
        FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
        StreamReader sr = new StreamReader(fs);

        //create array for getting any vlaue from string
        string[] arrOfData = sr.ReadToEnd().Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
        sr.Close();

        List<string> lines = new List<string>();
        bool status=false;//variable for showing form if event exist

        foreach (var l in arrOfData)
        {
            if (l.Contains(currDate) && l.Contains(currentDateTimeHM))
            {
                string[] temp = l.Split(',').Take(5).ToArray();
                notLabel.Text = temp[1].ToString();
                status = true;
            }
        }
        if (status)
        {
            //show Notification Form
            Form NotificationForm = new Notification();
            NotificationForm.Visible = true;
        }
    }

all works perfect - if information exist - new form opens, but notLabel.Text = temp[0].ToString(); this part have return nothing. During debuging i got next

means that code is correct but in strange for me reason result in programm - without this text. where I make some mistake?

Below form with label

checked

few rows from file NotificationDesigner.Form.cs

        this.notLabel.AutoSize = true;
        this.notLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(204)));
        this.notLabel.Location = new System.Drawing.Point(12, 22);
        this.notLabel.Name = "notLabel";
        this.notLabel.Size = new System.Drawing.Size(34, 13);
        this.notLabel.TabIndex = 0;
        this.notLabel.Text = "label";

Answer 1

where do you call the method getEventTime and what is notLabel.

if the method getEventTime is called and set the notLabel.Text but after that the text is set again to string.Empty that there is the problem, so you should probably search or debug every change to notLabel.Text.

are you sure the it is notLabel the it is shown in the form? you can check that by registering to the mouseDown event and see that it is called when you click on the Label

one more thing, add break; after your line

status = true;

go to the design and press the label, press F4 and search the name property, i bet it is not notLabel:

EDIT

i think i fount your problem

correct me if i'm wrong but this lines

    if (status)
    {
        //show Notification Form
        Form NotificationForm = new Notification();
        NotificationForm.Visible = true;
    }

are happening after you change the text... when what you meant is:

public void getEventTime(string filePath, string currDate, string currentDateTimeHM)
{
    Form NotificationForm = new Notification();
    //reading the *.csv file and convert to the array of data
    FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
    StreamReader sr = new StreamReader(fs);

    //create array for getting any vlaue from string
    string[] arrOfData = sr.ReadToEnd().Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
    sr.Close();

    List<string> lines = new List<string>();
    bool status=false;//variable for showing form if event exist

    foreach (var l in arrOfData)
    {
        if (l.Contains(currDate) && l.Contains(currentDateTimeHM))
        {
            string[] temp = l.Split(',').Take(5).ToArray();
            NotificationForm.NotText = temp[1].ToString();
            status = true;
        }
    }
    if (status)
    {
        //show Notification Form

        NotificationForm.Visible = true;
    }
}

and in the notification form do

  public string NotText
  {
     set { notLabel.Text = value; }
  }