Add Dynamically Item To dropdown Permanently

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I want to add items to Dropdownlist Permanently,

In design mod i have add 3 items (one, two, three)

but now at run time i want to add (four) to dropdown list permanently

item must be there after reloading page

Note:
Without using any database

This Is my code

C#

List<ListItem> items = new List<ListItem>();
       items.Add(new ListItem("" + TextBox2.Text + "", "Value 2"));

       items.Sort(delegate(ListItem item1, ListItem item2) { return item1.Text.CompareTo(item2.Text); });
       DropDownList3.Items.AddRange(items.ToArray());

guys help

Posted 1-Aug-13 21:22pm

jackspero18

Updated 1-Aug-13 21:38pm

v3

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Dholakiya Ankit 2-Aug-13 3:24am

what's the problem?

jackspero18 2-Aug-13 3:28am

in design mode i have added three names to dropdownlist,
and in runtime dynamilcally i have added other name to that list was not added permanent
when i refresh page.

4 solutions

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Member 9762654 · Answer 1 · 2013-08-01T21:43:00

Solution 1

C#

ComboboxItem item = new ComboboxItem();
item.Text = "four"
   item.Value = "four"

   comboBox1.Items.Add(item);

do this in page load of c#

Posted 1-Aug-13 21:43pm

Member 9762654

v2

Comments

jackspero18 2-Aug-13 3:57am

i want this dynamically, if i want to add sis on button click then i will write six in textbox,
then its not possible on load event

Member 9762654 2-Aug-13 4:23am

ok then store the values in session array upto which you want to add then in page load add items

Mukesh Ghosh · Answer 2 · 2013-08-01T21:45:00

Solution 2

Before adding, put this in Data table & put this in Session or View state, later bind this with drop down list .

Posted 1-Aug-13 21:45pm

Mukesh Ghosh

Adarsh chauhan · Answer 3 · 2013-08-01T23:28:00

Try this,

button click event

C#

protected void btnAddItem_Click(object sender, EventArgs e)
{
session["cbItem"]= textBox1.Text;
Additem();
}

On page load

C#

protected void Page_Load(object sender, EventArgs e)
{
     Additem();
}

C#

public void AddItem()
{
ComboboxItem item = new ComboboxItem();
item.Text = session["cbItem"].Tostring();
item.Value = session["cbItem"].Tostring();
comboBox1.Items.Add(item);
}

Wengdeli · Answer 4 · 2013-08-01T23:33:00

Solution 4

hi !

in pageload you insert code after you bind data to dropdown :
ex : insert into first position of dropdown

DropDownList3.Items.Insert(0, new ListItem("item A", "value A"));

0 : is index of array.

by Wengdeli

Posted 1-Aug-13 23:33pm

Wengdeli