CODEWITHSUNDEEP
c#comboboxvisual-c#-express-2010
Vulegend
Vulegend

Reputation: 105

Combo Box if statement

I am having a problem with a combo box here. What I did is made a combo box, added items using comboBox1.Items.Add("Something");. Now I made a text box down there and what I need is when I select something from the combo box the text box changes according to selected item on combo box. What I thought it would do is 

if(comboBox1.SelectedItem.ToString() == "Something")
{
    textBox1.Text = "Something";
}

But it's not working for some reason, I tried both without ToString() and with still it is not working.

Upvotes: 7

Views: 77434

Answers (9)

Elijah Rodricks
Elijah Rodricks

Reputation: 1

Option 1:

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    if (comboBox2.SelectedItem.ToString() == "Dr")
    {
        MessageBox.Show("its dr");
    }
    else
    {
        MessageBox.Show("its cr");
    }
}

Option 2:

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    if (comboBox2.Text == "Dr")
    {
        MessageBox.Show("its dr");
    }
    else
    {
        MessageBox.Show("its cr");
    }
}

Upvotes: 0

Raymond Dumalaog
Raymond Dumalaog

Reputation: 353

Try this, in your InitializeComponent() add this

private void InitializeComponent()
{
//
// combobox
//
this.combobox.SelectedIndexChanged += new System.EventHandler(this.changed);
}

then in your main method, create this method

private void changed(object sender, EventArgs e)
{
if(this.combobox.Text == "Something")
Textbox1.Text = "Something";
}

Upvotes: 0

Muhammad Shamsher Ahmad
Muhammad Shamsher Ahmad

Reputation: 1

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (comboBox1.SelectedItem.ToString() == "M.Naveed")
        {
            textBox1.Text = textBox1.Text + ("Networking");
            textBox2.Text = textBox2.Text + ("Networking");
            textBox1.Text = textBox1.Text + ("mobile");
            textBox2.Text = textBox2.Text + ("mobile");
            ListViewItem li = new ListViewItem("Networking");
            li.SubItems.Add("mobile");
            listView1.Items.Add(li);


        }
        else if (comboBox1.SelectedItem.ToString() == "Zeeshan")
        {
            textBox1.Text = textBox1.Text + ("Networking");
            textBox2.Text = textBox2.Text + ("Networking");
            textBox1.Text = textBox1.Text + ("Jave");
            textBox2.Text = textBox2.Text + ("Jave");
            ListViewItem li = new ListViewItem("Networking");
            li.SubItems.Add("Jave");
            listView1.Items.Add(li);

        }
        else if (comboBox1.SelectedItem.ToString() == "Shamsher")
        {
            textBox1.Text = textBox1.Text + ("Networking"); textBox1.Text = " ";
            textBox2.Text = textBox2.Text + ("Networking");
            textBox1.Text = textBox1.Text + ("Web");
            textBox2.Text = textBox2.Text + ("Web");
            ListViewItem li = new ListViewItem("Networking");
            li.SubItems.Add("Web");
            listView1.Items.Add(li);



        }

        else if (comboBox1.SelectedItem.ToString() == "Mudasir")
        {
            textBox1.Text = textBox1.Text + ("Networking");
            textBox2.Text = textBox2.Text + ("Networking");
            textBox1.Text = textBox1.Text + ("Team Fundation");
            textBox2.Text = textBox2.Text + ("Team Fundation");
            ListViewItem li = new ListViewItem("Networking");
            li.SubItems.Add("Team Funadation");
            listView1.Items.Add(li);


        }


        }


    private void textBox1_TextChanged(object sender, EventArgs e)
    {


    }

    private void button1_Click(object sender, EventArgs e)
    {
        comboBox1.Items.Add("Someting");

        comboBox1.Items.Add("Mcs");
    }

    private void button2_Click(object sender, EventArgs e)
    {
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        comboBox1.Items.Add("M.Naveed");
        comboBox1.Items.Add ("Mudasir");
        comboBox1.Items.Add ("Zeeshan");
        comboBox1.Items.Add("Shamsher");



    }
    }
}

Upvotes: 0

chaliasos
chaliasos

Reputation: 9783

According to your question I suppose that whatever the selectedItem is you want to display it on the TextBox. So, why don't you use this:

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    textBox1.Text = comboBox1.SelectedText.ToString();
}

Upvotes: 0

Nikhil Agrawal
Nikhil Agrawal

Reputation: 48558

Put your code in comboBox1_SelectedIndexChanged event

if(comboBox1.SelectedItem.Value.ToString() == "Something")
{
    textBox1.Text = "Something";
}
else
{
    textBox1.Text = "";
}

OR a consice version

textBox1.Text = 
comboBox1.SelectedItem.Value.ToString() == "Something" ? "Something" :"";

Upvotes: 0

Vulegend
Vulegend

Reputation: 105

Oh found the problem . I was putting the code in wrong section (on textBOx_click) section :P

Upvotes: 1

Damith
Damith

Reputation: 63065

Double click on your combobox and it will generate event for you(SelectedIndexChanged by default). put your code inside that generated event. When you change combobox selected value then you can see the text box value change accordingly.

if you need to show combobox selected value in the textbox, you can put below code inside generated event

textBox1.Text = comboBox1.SelectedItem.ToString();

Upvotes: 1

KF2
KF2

Reputation: 10143

try this

 private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (comboBox1.SelectedItem.ToString() == "Something")
            {
                textBox1.Text = "Something";
            }
        }

Upvotes: 0

Darren
Darren

Reputation: 70718

Try using: comboBox1.SelectedText

if(comboBox1.SelectedText == "Something")
{
      textBox1.Text = "Something";
}

Upvotes: 3

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