How to detect whether the items of checklist box is checked or not?

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i want to add the integer if the items of the checklist box is checked.
and vice versa...
any idea...

lets say..
there are three items book, pen, color
if book checked the amount should be 200 and if both pen and book is checked 200+40=240 should be the new amount .
if book is unchecked then new amount should be 40...

Posted 7-May-11 23:39pm

Santoshshrest

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Hemant__Sharma · Answer 1 · 2011-05-08T00:02:00

Hello,

you can try this also

aspx markup:

XML

<asp:CheckBoxList ID="CheckBoxList1" runat="server">
            <asp:ListItem Value="book">The Book</asp:ListItem>
            <asp:ListItem Value="pen">The Pen</asp:ListItem>
            <asp:ListItem Value="color">The Color</asp:ListItem>
        </asp:CheckBoxList>

Code behind:

C#

public partial class CheckBoxLists : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            int totalValue = 0;
            foreach (ListItem item in CheckBoxList1.Items)
            {
                if (item.Selected)
                {
                    Choices currentChoice = (Choices)Enum.Parse(typeof(Choices),item.Value.ToString());
                    totalValue += (int)currentChoice;
                }
            }
            Response.Write("Total Choices: " + totalValue.ToString());
        }
    }

    public enum Choices
    {
        book = 100,
        pen = 40,
        color = 60
    }

Enjoy....

Thanks,
Hemnat

Ed Nutting · Answer 2 · 2011-05-07T23:48:00

Tried anything yourself? This should be extremely simple really. How about a method with an if block for each check box that simply adds the number relevant to that check box to a total then returns the total.

e.g.

C#

private int TotalCheckBoxes()
{
    int Total = 0;

    if([BookBox].Checked)
        Total += 200;

    if([PenBox].Checked)
        Total += 40;

    if([ColorBox].Checked)
        Total += 50;

    return Total;
}

Or even just have an array of ints that corresponds to each checkbox in your list then enumerate each checkbox in the list adding the relevant number from the array to a total.

Simply really,

Ed :)

Santoshshrest · Answer 3 · 2011-05-08T20:25:00

Solution 3

I got it...
now i have list of items in list box.
and same items in check list box.
as i select items in list box i want same item checked in listchecked box
any idea...
i tried

lstchk_box.Items[index].Select=ture;

but is not available in c sharp.
any idea...

Posted 8-May-11 20:25pm

Santoshshrest

eshaq · Answer 4 · 2011-05-09T00:54:00

you can try this it's simple and active

C#

int i;
int amount = 0;
string s;
for (i = 0; i <= (checkedListBox1.Items.Count - 1); i++)
{
    if (checkedListBox1.GetItemChecked(i))
    {
        switch (i)
        {
            case 0: amount = amount + 200; break;
            case 1: amount = amount + 40; break;
            case 2: amount = amount + 50; break;
        }
    }
}
s = amount.ToString();
MessageBox.Show(s);

Enjoy
Eshaq

mylogics · Answer 5 · 2011-05-09T01:48:00

Solution 5

its simple:
foreach(listitem lst in checkbox.item)
{
if(lst.checked)
{
//your code here
}
}

Posted 9-May-11 1:48am

mylogics

How to detect whether the items of checklist box is checked or not?

5 solutions

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