如何在“ textBox1_KeyDown”功能下使用“ textBox1_TextChanged”？

Question

I am using two functions on a textBox1 that are textBox1_TextChanged and textBox1_KeyDown as my desired code is to run after hitting some keys and on text change and working fine as below.

private void textBox1_TextChanged(object sender, EventArgs e)
{
    TextChanged();
}

private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
    KeysPressed(sender, e);
}

But ٰI want to run my both function under textBox1_KeyDown() only using the below concept.

private string currentText = "";
private void textBox1_KeyDown(object sender, KeyEventArgs e)
{    
    if (currentText != textBox1.Text)
    {
        TextChanged();
    }
    currentText = textBox1.Text;
    KeysPressed(sender, e);
}

My problem is that my TextChanged(); in upper code runs after adding two characters. I want it to run on every character and on add/delete/edit/paste/replace in textBox1 so any ideas to make it work on first hit on the textBox1_KeyDown() function?

Explained:

I understand my problem as when I use textBox1_KeyDown() event then it run the inner code TextChanged(); first then it work for its own work like I press a character then it will run TextChanged(); then will type that character in the textBox1 so that's why my TextChanged(); is not able to detect any changed in text. So how to fix this...???

Answer 1

From your question i assumed that your problem that at first hit for textBox1_KeyDown TextChanged(); is not called. Only at second hit it will be called successfully. If my understanding is right then i think the problem is with your if statement as at startup both textBox1 text and currentText will be equals as both are empty string.