C# - Removing items from A dropdown List Please help

Author

Removing items from A dropdown List Please help

frawls@gmail.com

2005-05-09, 3:59 pm

Hi,

This is concerned with System.Web.UI.WebControls.Drop=ADDownList

I am having problems creating a method which will remove list items
from a preloaded dropdownlist. This dropdown is loaded when the page
loads and the items are pulled from a database.

I want to create a method which is called on the page load and will
remove certain items from the dropdown list. I want the method to loop
through each list item and remove it if its value =3D "Not Given"

The reason i am dong this is because i have to load all the items in
first and then use a different method to remove the undesired ones. I
do not want the user to be able to select or even see the "Not Given"
Option

My dropdown list is called ddlOccupationStatus
My method is called ClipDropDowns();

I cannot get the correct logic in place to loop through the list and
the remove the undesired items, can anyone help?

Any answers or help will be greatly appreciated....

I have tried the follwing methods but to no avail:

private void ClipDropDowns()
{
if (ddlOccupationStatus.SelectedV=ADalue.Equals("Not Asked"))
{
ddlOccupationStatus.SelectedVa=ADlue.Remove("Not Asked);
}

}

I have also tried:

private void ClipDropDowns()
{
for(int i=3D0; i < 20; i++)
{
if (ddlOccupationStatus.Items(i) =3D=3D "Not Asked")
{
ddlOccupationStatus.Items.Remo=ADve(i,1);=20
}=20

}
}

Angrez Singh

2005-05-09, 3:59 pm

Hi,

Just try this out :
private void RemoveValue()
{
for(int i=0; i<drpList.Items.Count; i++)
{
if(drpList.Items[i].Value == "true")
{
drpList.Items.RemoveAt(i);
// Here i is decremented because when you remove
the value from the
// the list the length is automatically decreased by
one. So the next item
// will be a index i and if we increment it we skip
one value.
i--;
}
}
}

HTH,
Regards,
Angrez

Frawls

2005-05-10, 8:57 am

Hi Angrez

Thank you for you reply, thats great. The solution you gave me worked
perfectly!! Thank you so much, i really appreciate your help, i will be
implementing your solution all around my application....

Frawls

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