Random in C#

[alee15 10 88]

Hi everyone, I've got a problem and I can't solve it with anything! I have a button that when one clicks on it a groupbox is enabled showing a label with the value of a row which was random from a database. Then when one clicks the next button another question is random and displayed in the same label.Now I would like that after the user clicks the next button for ten times, it is disabled. How can I do this? :confused: Thanks

[Office Lineman]

Can you elaborate on the problem? Is it disabling the button? Is it selecting random questions from a database? Is it keeping track of ten clicks? Help us help you. -- I've killed again, haven't I?

[alee15 10 88]

Yes a new question is random everytime I click the Next button. But it's not keeping track of the ten clicks that the user makes since I don't know how and at the moment the button is not disabled.

[Office Lineman]

Create a variable, e.g. userClicks. Initialize it to 0. In your button's Click handler, increment the value of userClicks, and if it is 10, set the button's Enabled property to false. -- I've killed again, haven't I?

[Jakob Farian Krarup]

Hi Alee :-D It would be helpful if you told us whether this is a windows- or web application. But I guess you're talking about web. You could store the number of times in ViewState (a hidden form field on the webpage) Something along the lines of: http://www.sweetsilence.dk/codeprojectprojects/limitedclicks/[^] Here is the code below, also available at: http://www.sweetsilence.dk/codeprojectprojects/limitedclicks/limitedclicks.zip[^] --------------------------------------------------------------------------

public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Label lblQuote;
protected System.Web.UI.WebControls.Label lblNumberOfClicksLabel;
protected System.Web.UI.WebControls.Label lblNumberOfClicksValue;
protected System.Web.UI.WebControls.Button btnShowQuote;

//makes it easier to store an int in ViewState by wrapping it in a property
protected int NumberOfClicks
{
	get 
	{
		//if there is no value in ViewState, return 0 (zero)
		if(this.ViewState\["clicks"\] == null)
			return 0;
		else
			return (int)ViewState\["clicks"\];
	}
	set{this.ViewState\["clicks"\] = value;}
}

private void btnShowQuote\_Click(object sender, System.EventArgs e)
{
	//if there are still clicks left
	if(this.NumberOfClicks < 10)
	{
		//show quote
		lblQuote.Text = GetQuote();
		//increment number of clicks
		NumberOfClicks++;
	}
	else
	{
		//let them know that the show is over
		lblQuote.Text = "\[no more quotes for you!\]";
		lblQuote.ForeColor = Color.Red;
	}
}

public string GetQuote()
{
	//implement your own code to get random quote
	if(this.NumberOfClicks % 2 == 0
		return "Even is pretty good";
	else
		return "Odd is good too ; )";
}

private void WebForm1\_PreRender(object sender, System.EventArgs e)
{
	lblNumberOfClicksValue.Text = this.NumberOfClicks.ToString();
}

}

Three kinds of people in the world: - Those who can count.. - Those who can't! -- modified at 14:47 Thursday 6th April, 2006

[alee15 10 88]

Actually at the moment I'm working with windows and when I'll be ready I'm going to do it in a web application.

[alee15 10 88]

Thank you, Thank you I've done it :-D

[Jakob Farian Krarup]

Well then... here is a Windows version just for you :-D http://www.sweetsilence.dk/codeprojectprojects/limitedclicks/LimitedQuotes_Winsolution.zip[^] Kind regards - Jakob Three kinds of people in the world: - Those who can count.. - Those who can't!

[junglerover77]

just use an INVISIBLE TextBox control to store the track and count of the clicks.:zzz: