Radiobuttonlist - disabling a list item

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I am trying to disable 2 radiobuttons from a list that is generated from a table. There are a lot of articles on this but few if any address the issue when the list comes from a table. The RadioButtonlist is generated from an SQL table that contains Job Units or Teams. I want to disable two of the Teams (Marketing and SRT) from the list. The Job Units table is used by other applications so removing the 2 Job Units from the table would affect the other applications. I could do it in the SelectMethod but that is also shared.

How can I disable the two Teams from this generated list?

Here is my code:

.ASPX

ASP.NET

<asp:Label ID="Label1" runat="server" Text="Team:" ></asp:Label>             
        <asp:RadioButtonList ID="rblTeam" runat="server" AutoPostBack="True" DataSourceID="odsTeam" 
             Font-Size="X-Small" RepeatDirection="Horizontal"  BorderStyle="Outset"  RepeatColumns="6"  
            DataValueField="JobUnitID" DataTextField = "JobUnitAbbreviation" OnLoad="Page_Load" >
        </asp:RadioButtonList>
        
        <!-- data source for the team drop down list -->
        <asp:ObjectDataSource ID="odsTeam" runat="server" 
            SelectMethod="GetCSOJobUnits" TypeName="SupportBAL.SupportBAL">
        </asp:ObjectDataSource><br />

C#

protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            Page.SetFocus(txtCaseNumber);
            rblTeam.SelectedIndex = 0;
            int TodaysDay2 = DateTime.Today.Day;
            int TodaysMonth2 = DateTime.Today.Month;
            int TodaysYear2 = DateTime.Today.Year;
            txtLogDate.Text = TodaysMonth2 + "/" + TodaysDay2 + "/" + TodaysYear2;
        }
    }

If I was creating the list in the .ASPX code, no problem. Since the list is being generated, I am stuck.

Any help and advise will be much appreciated.

Posted 12-Sep-12 8:37am

JTRizos

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Comments

Ashraff Ali Wahab 12-Sep-12 14:41pm

You can do this in the DataBinding event right.Are you facing any sort of problem while doing this in DataBinding event.

JTRizos 12-Sep-12 14:54pm

Hi Ashraff, Do you mean in the SelectMethod? I could do it in the GetCSOJobUnits code that retrieves the list items from the SQL table but that is shared by other applications. I could create new SelectMethod code for this app but was hoping to do it in the code behind.

Thank you for your reply.

1 solution

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Mario Majčica · Accepted Answer · 2012-09-12T10:31:00

Solution 1

1) Disabling items:

Serach for your item in the list (you can do it or by text or by value) and disable it:

ListItem srtItem = rblTeam.Items.FindByValue("SRT");

if (srtItem != null)
   srtItem.Enabled = false;

This code should work.

2) Rewriting some code:

This:

C#

int TodaysDay2 = DateTime.Today.Day;
int TodaysMonth2 = DateTime.Today.Month;
int TodaysYear2 = DateTime.Today.Year;
txtLogDate.Text = TodaysMonth2 + "/" + TodaysDay2 + "/" + TodaysYear2;

can easily be written as (if you are trying to avoid a current culture):

txtLogDate.Text = DateTime.Now.ToString("MM\\/dd\\/yyyy");

More information here:
http://msdn.microsoft.com/en-us/library/az4se3k1.aspx[^]
http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx[^]

Cheers

Posted 12-Sep-12 10:31am

Mario Majčica

Comments

JTRizos 12-Sep-12 17:29pm

Hi Mario, #1 doesn't work. srtItem comes back as null. Tried it with Text and Value. Thanx for the suggestions.

Mario Majčica 13-Sep-12 3:42am

In which part of code did you tried to find the item? Can you set a break point on FindByValue and see if the control contains items?

JTRizos 13-Sep-12 12:13pm

I placed it in the Page_Load Event (see above). Here's part of the code

rblTeam.SelectedIndex = 0;

ListItem tmpItem = rblTeam.Items.FindByValue("SRT");
if (tmpItem != null)
{
rblTeam.Enabled = false;
}

int TodaysDay2 = DateTime.Today.Day;

I placed a control break on the if line and the tmpItem contained a null. I am thinking of doing this in the SelectMethod code that retrieves the table entries.

Thanx again for your help

Mario Majčica 14-Sep-12 3:17am

OK, tmpItem was null, but what was the count of rblTeam.Items?

JTRizos 14-Sep-12 12:21pm

The count is 0. There should be 14 entries.

Mario Majčica 14-Sep-12 14:49pm

Then you can't disable anything. The items are yet not there. Try by defining the Data Bound event and disable it in the same way:

protected void rblTeam_DataBound(object sender, EventArgs e)
{
ListItem srtItem = rblTeam.Items.FindByValue("SRT");

if (srtItem != null)
srtItem.Enabled = false;
}

Cheers

Mario Majčica 14-Sep-12 15:02pm

Also check this:

http://msdn.microsoft.com/en-us/library/ms178472.aspx

Note: PreRenderComplete
Raised after each data bound control whose DataSourceID property is set calls its DataBind method. For more information, see Data Binding Events for Data-Bound Controls later in this topic. This event the is raised after the PreRender, so...

JTRizos 14-Sep-12 17:06pm

Thank you Mario, Interesting link. I will review it and try out your suggestions. Very much appreciated. Have a great weekend!

Mario Majčica 15-Sep-12 5:50am

You're welcome. Let me know if it worked and if so, accept and vote the answer. Cheers