Problem automatically updating labels in windows forms

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I am developing an small app learning Arabic alphabets, In this, I want when I click next button the next alphabet should display. For that, I am automatically updating Labels, but when more than one labels are used using if statement, when I click next button then the last label data is showing. My code is like this.

C#

private void Form1_Load(object sender, EventArgs e)
       {
           pictureBox1.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\example_alif_1.gif");
           pictureBox2.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\Allah.gif");
           pictureBox3.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\Allah.gif");
           pictureBox4.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\ALLAHH.jpg");
           label1.Text = "I";
           button1.Text = "II";
           button2.Text = "Home";

       }

       private void button1_Click(object sender, EventArgs e)
       {

           if (label1.Text == "I")
           {
               pictureBox1.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\circle_baa1.jpg");
               pictureBox2.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\baab.jpeg");
               pictureBox3.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\BAB.jpg");
               pictureBox4.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\DOOR.jpg");
               label1.Text = "II";
               button1.Text = "III";
               button2.Text = "I";

           }
           if (label1.Text == "II")
           {
               pictureBox1.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\circle_taa.jpg");
               pictureBox2.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\turab.jpg");
               pictureBox3.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\تراب.jpg");
               pictureBox4.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\SOIL.jpg");
               label1.Text = "III";
               button1.Text = "IV";
               button2.Text = "II";
           }
           if (label1.Text == "III")
           {
               pictureBox1.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\circle_thaa.jpg");
               pictureBox2.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\fuit.jpg");
               pictureBox3.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\SAMAR.jpg");
               pictureBox4.Image = Image.FromFile(@"D:\islamic projects\Aleef\Aleef\Resources\FRUIT.jpg");
               //label1.Text = Convert.ToString(Number + 3);
               //button1.Text = Convert.ToString(Number + 4);
               //button2.Text = Convert.ToString(Number + 1);
               label1.Text = "IV";
               button1.Text = "V";
               button2.Text = "III";
           }

Here when I click next button then it is taking me to last data, not the second one.

Posted 28-Apr-15 21:51pm

Farhan Bajrai

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Florian Braun · Accepted Answer · 2015-04-28T22:06:00

as you are using three "if statements" without else if it just runs through every if clause.

in your first if-clause you make label.text to "II"
after that you check if label.text is "II" which happens to be after runnig through firt if-clause.

so just make

if (label1.Text == "II")

to

else if (label1.Text == "II")

and

if (label1.Text == "III")

to

else if (label1.Text == "III")

Farhan Bajrai · Accepted Answer · 2015-04-28T22:51:00

Solution 2

Thank you very much. @Florian Braun.

Posted 28-Apr-15 22:51pm