Inserting at top of richtextbox
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10-07-2019 - |
Question
Whats wrong with this code? Trying to get my text to insert at the beginning of the textbox rather than at the bottom.
private void execute_Click(object sender, EventArgs e){ startFinshBox.Text = "Start Time: " + printTime()+""; startFinshBox.Text.Insert(0,printTime()+": Retrieving Results...\n"); }
But it will not insert the second line into the rtb. I have tried with startFinishBox.SelectionStart = 0 as well, and it made no difference. Am I missing something else?
Thanks, Psy
Solution
startFinshBox.Text
is a string, which is an immutable type in C#. string.Insert()
will return the modified string as a result, but it your code you discard it. To make it work, you have to change the code to:
private void execute_Click(object sender, EventArgs e){
startFinshBox.Text = "Start Time: " + printTime()+"";
startFinshBox.Text = startFinshBox.Text.Insert(0,printTime()+": Retrieving Results...\n");
}
OTHER TIPS
The SelectionStart
property on a TextBox will determine where text will be selected or inserted from.
Use this code to insert code at the start of the text box control:
TextBox.SelectionStart = 0;
TextBox.SelectedText = "Start time: " + printTime();
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