ASP.NET

Creating a drop down list (databounded) and adding a "Please Select"

13-May-08 20:41

This is the ASP.NET forum.....

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Desmond Lim13-May-08 20:00

Desmond Lim

13-May-08 20:00

Hi,

I'm wondering if this can be done. I have a drop down list that I populate with data from a table. I'd like to add a "Please Select" to the drop down list and make it the first item on the list, so that when the page is loaded, the user will see "Please Select" instead of "amp" in the drop down list.

Can this be done? If so how?

Thanks.

Desmond

Re: Creating a drop down list (databounded) and adding a "Please Select"

Christian Graus13-May-08 20:18

Re: Creating a drop down list (databounded) and adding a "Please Select"

13-May-08 20:18

You need to add 'please select' to your data source before binding, as once you bind, you cannot add other items.

Gayani Devapriya13-May-08 20:49

Gayani Devapriya

13-May-08 20:49

Hi,

Yes its possible.
Have a look at this sample.

DropDownList1.Items.Add(new ListItem("aaa", "1"));
DropDownList1.Items.Add(new ListItem("bbb", "2"));
DropDownList1.Items.Insert(0, new ListItem("-- Please Select --"));

Items.Add() method adds the items to the Dropdown. Over here you may bind the items from the table, thats fine. Then use the Items.Insert() method specifing the index (here it's 0 which will be the first item in your drop down) and give the ListItem ("Please select" text) as the item to be added.

Thx
Gayani

Re: Creating a drop down list (databounded) and adding a "Please Select"

Christian Graus13-May-08 21:20

Re: Creating a drop down list (databounded) and adding a "Please Select"

13-May-08 21:20

Gayani Devapriya wrote:
Over here you may bind the items from the table, thats fine. Then use the Items.Insert() method specifing the index (here it's 0 which will be the first item in your drop down) and give the ListItem ("Please select" text) as the item to be added.

No, if a control is data bound, you cannot add items to it using code.

TheWirelessGuy15-May-08 9:32

TheWirelessGuy

15-May-08 9:32

In the properties of the drop down list control, set the AppendDataBoundItems to true. Then, in the Items Collection, add the item "Please Select". Finally, bind the list as you are now.

The control will first insert any items that are in the "Items Collection", then it will (as the property states) append the data bound items to the control.

Steve

Disk space problem

SreejithAchutan13-May-08 19:04

SreejithAchutan

13-May-08 19:04

When i run an asp.net application the following error occurs.Once he removes temp files and resets IIS , the things work fine for another month or two ,again the same error occurs.How to resolve this issue permanently ?.

"Could not load file or assembly 'App_Code' or one of its dependencies. There is not enough space on the disk. (Exception from HRESULT: 0x80070070) "

Christian Graus13-May-08 19:16

13-May-08 19:16

Um... what answer were you hoping for, apart from, get a bigger hard drive ?

I guess one problem could be if you're creating files in your code, that you need to delete them, or move them to somewhere that there is space for them ?

SreejithAchutan13-May-08 19:29

SreejithAchutan

13-May-08 19:29

The error occured in sql server database.We delete the temporaray files and reset IIS the error will not occur.But i want to resolve it permenently.he error occured due to when i login using asp.net configuration files,aspnet_users folder is created in the database.it will took around 2 gb space.After i remove the temp aspnet_users file the error had gone.I want to get a permenet solution for this.Please help ..

N a v a n e e t h13-May-08 21:09

N a v a n e e t h

13-May-08 21:09

SreejithAchutan wrote:
it will took around 2 gb space.After i remove the temp aspnet_users file the error had gone.I want to get a permenet solution for this.Please help ..

Permanent solution is to upgrade hard disk space. BTW, why did you down voted some one who tried to help ?

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

How to use google | Ask smart questions

Christian Graus13-May-08 21:21

13-May-08 21:21

N a v a n e e t h wrote:
BTW, why did you down voted some one who tried to help ?

Yeah, that's why I did not respond. What answer IS there beyond buying a bigger HDD ? I mean even if he can optimise for this, it will only be something else, if he's that close to the edge. On a server ?

SreejithAchutan13-May-08 21:25

SreejithAchutan

13-May-08 21:25

Sorry Navaneeth sir,Actually what u send is not enough to me.so i rate like that.

eyeseetee13-May-08 21:34

eyeseetee

13-May-08 21:34

SreejithAchutan wrote:
what u send is not enough to me

Ah I see you want a miracle, sorry they are not provided here, maybe try somewhere else.

Christian Graus13-May-08 21:37

13-May-08 21:37

People like you are what's wrong with this site. Soon, people will not help folks if they seem to be completely ignorant to start with, because they will be scared of getting 1 votes because what they say is true and does not alter reality.

In other words, it will be harder to get an answer if you're obviously stupid to start with. That will be a sad day.

Using Explicit Resource Expression and Shared Resources

leckey14-May-08 3:00

leckey

14-May-08 3:00

Just because you didn't like the answer? I'm with CG and his comments.

Does it matter what I write here? Someone just has to say something about it.

gotdablues13-May-08 8:02

gotdablues

13-May-08 8:02

I have created a shared resource file. From with my code-behind files I am able to access the strongly-typed fields with my resource.

For example, Literal1.text = MySharedResource.Properties.Resources.Username. Where Username is a key in my Resources.resx file.

However, when I try to use explicit expressions from within my aspx page, I am not able to reference the field.

For example, in my web page I have <asp:literal id="Literal1" runat="server" text="">]]>" />. This does not work. I tried fully-qualifying the class, this does not work either. <asp:literal id="Literal1" runat="server" text="">]]>" />

Any thoughts on how I can use a shared resource file with explicit expressions?

Thanks.

Steve

Re: Using Explicit Resource Expression and Shared Resources

Gayani Devapriya16-May-08 8:35

Gayani Devapriya

16-May-08 8:35

Hi Steve,

Try this one.
<asp:Literal ID="liUserName" runat="server" Text='<%$Resources:Resource,UserName %>'></asp:Literal>

Thx,
Gayani

Saving User Name And Password.

Pranav Thakur13-May-08 5:29

Pranav Thakur

13-May-08 5:29

Hi,

I have written a code to save username and password on client machien using cookie.The code is as follows:-

HttpCookie loginCookie = new HttpCookie("logCoockie");
if (this.Login1.RememberMeSet)
{

//Check if the browser support cookies
if ((Request.Browser.Cookies))
{

//Check if the cookie with name LoginCookie exist on user's machine
//if (loginCookie == null)
//{
//Create a cookie with expiry of 30 days
loginCookie.Expires = DateTime.Now.AddDays(30);
//Write username to the cookie
loginCookie.Values.Add("UNAME", this.Login1.UserName.ToString());
//Write password to the cookie
loginCookie.Values.Add("UPASS", this.Login1.Password.ToString());
//}
//If the cookie already exist then wirte the user name and password on the cookie
//else
//{
// loginCookie.Values.Add("UNAME",this.Login1.UserName.ToString());
// loginCookie.Values.Add("UPASS",this.Login1.Password.ToString());
//}
}
Response.Cookies.Add(loginCookie);
}
else
{

Response.Cookies["logCoockie"].Expires = DateTime.Now.AddDays(-3);

}

But it is not recommended to save such information in cookie.Can anyone help to use any alternative way to save such inforamtion.
Thanks.

l0kke13-May-08 6:19

l0kke

13-May-08 6:19

why do you need to store this on client side?
there might be better solution for that.

if you really need to store this in a cookie, then you have to encrypt the information at least. check eric newton's article on cookie encryption:
http://www.codeproject.com/KB/web-security/HttpCookieEncryption.aspx[^]

Pranav Thakur13-May-08 22:12

Pranav Thakur

13-May-08 22:12

Thanks for your reply. Actually I want to know other better ways to save username and password without using cookies.Please help.

l0kke13-May-08 22:39

l0kke

13-May-08 22:39

I agree with Chrisitan's post below, that's how I would do it probably, but I still don't know what is your scenario, so there could be better way how to achieve what you need.

Christian Graus13-May-08 19:18