ASP.NET

CSS menu change in Asp.net

26-Jul-09 17:42

You just start from here,
Solverligt GetStarted

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
View My Latest Article

mark_me26-Jul-09 14:47

mark_me

26-Jul-09 14:47

Hi,
I am having problems with using css in asp.net. I was a php programmer about 3 yrs back, jumped into C# about 2 yrs back but worked with windows applications. Now i wish to work in asp.net. I have good C# knowledge, am using an asp.net book too but this problem, wasn't able to find any help.
sorry, if my question is stupid... Actually, i remember in php, using a template on each page and for each page changin colors manually to show selected menu. With asp.net and master pages, i have used CSS to create the master page but changing hyperlink (menu) color is being problematic.
Is it a good idea to use CSS in asp.net? Anyways, my question is if i have a css element selectedMenu. how would i apply it to menu items on each page. menu again is css generated, used on master page...
Please provide help
thanx in advance

Christian Graus26-Jul-09 15:13

Christian Graus

26-Jul-09 15:13

mark_me wrote:
Is it a good idea to use CSS in asp.net?

Absolutely. ASP.NET, like PHP, is an engine for generating HTML, javascript and CSS ( what else could it be ? ). Therefore, it would be worthless if it had no support for a central platform of web development.

mark_me wrote:
Anyways, my question is if i have a css element selectedMenu. how would i apply it to menu items on each page. menu again is css generated, used on master page...

Ultimately, if you're using css and creating a menu, this is a html/general web development issue. There's nothing in ASP.NET that could possibly hope to change how a browser reads css, or what it does with it. So, your best starting point is to look at the script being emitted, and try to work out what's missing, or in the wrong place, or whatever. Then work backwards from there, and work out why the way you're using ASP.NET is not creating the result you expect.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

mark_me26-Jul-09 16:55

mark_me

26-Jul-09 16:55

hi, thankyou for replying but i want to re-iterate my question.
In php, you would make every page. For home page, you will use css element selectedMenu for homelink, in product page you will use selectedMenu for Product, similarly for pageN you will have PageN set to selectedMenu. That way, a user will know which page he is viewing. Inshort, every page is kinda redesigned in php.
In asp.net, you will have one template, the master... with menu in master, you can have multiple pages but how would you set css property to selectedMenu for page Product programmatically, again how would u set it to pageN programatically. Will i have to use page.Load.

Again, thanks for replying.

Christian Graus26-Jul-09 20:07

Christian Graus

26-Jul-09 20:07

mark_me wrote:
Will i have to use page.Load.

Well, plainly not. You can use the prerender event, and that's often a better idea, because it fires after events.

What you would do, is write code to change the classes of your menu items, based on what page is selected. The way I'd do this, is write a menu class that uses a session variable to know which item to show as selected, then each page sets the right value. Another reason to use prerender, so you have time to set that value first.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

best way to update an xml file once per day on web application?

mark_me27-Jul-09 6:06

mark_me

27-Jul-09 6:06

Thankyou

dd31415926-Jul-09 7:02

dd314159

26-Jul-09 7:02

Hi,
I am updating an XML file (and I need to use a file because it's being used as input to a flash map (that i don't have code for)) - right now I'm implementing code that:

-checks the date on the file - if a day or more old - then update the file - using an application object to lock the file and update it.

But this application is on a server farm - so I have to have more than one copy of the file - but each will get updated using this way.

Is there a better way to do this?

Thanks in advance.

Re: best way to update an xml file once per day on web application?

Abhishek Sur26-Jul-09 9:44

Abhishek Sur

26-Jul-09 9:44

why dont you place it in a location common to everybody, even in database will do. In this case you are leaving out the unnecessary bugs that comes with multiple occurrence of the same file.

Abhishek Sur

My Latest Articles
Working with Excel using MDAC

Basics on LINQ and Lambda Expressions

Create .NET Templates

Re: best way to update an xml file once per day on web application?

dd31415926-Jul-09 11:21

dd314159

26-Jul-09 11:21

Yes I understand what you are saying -

however I'm using flash code in my application that requires as input the name of an xml file with the data the flash application needs. I want to update this data in the xml file one time per day.

So a file is required in this case - but I'm not sure of the best way to update this file only once per day.

Re: best way to update an xml file once per day on web application?

Mike Ellison26-Jul-09 13:38

Mike Ellison

26-Jul-09 13:38

You could always manage this with a scheduled application (say, a console or winforms app scheduled to run through Task Scheduler).

MishaInTheCloud.blogspot.com

asp.net display data in gridview [modified]

solo_gaurav26-Jul-09 5:18

solo_gaurav

26-Jul-09 5:18

hey all.. i need a guidence to my problem im facing
i want to display data in gridview binded to a sql datasource
but the problem part is i want to bind a field of that datasource to a dropdownlist and when a item is selected in that dropdownlist then correcposnding to that data will be displayed in gridview...
i have done the binding of datasource and gridview... but not of cropdownlist...plz help buddies... i'll be very grateful ... thanks in advance Smile | :)

here is my code which im using

protected void  DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {  ///int count=0;
        con = new SqlConnection("Data Source=.;Initial Catalog=abc;Integrated Security=True");


        
        
            con = new SqlConnection("Data Source=.;Initial Catalog=abc;Integrated Security=True");
            cmd = new SqlCommand("select * from salescounts where ='"+DropDownList1.Text+"'", con);
            con.Open();
            SqlDataReader dr = cmd.ExecuteReader();
            if (dr.HasRows)
            {
                GridView1.DataSource = dr;
                GridView1.DataBind();
                Label1.Text = "Result found:" + GridView1.Rows.Count;


            }
            else
            {
                Label1.Text = "not found";
            }

            con.Close();
        
}

modified on Sunday, July 26, 2009 12:51 PM

Abhijit Jana26-Jul-09 6:58

26-Jul-09 6:58

Just Try this one

protected void  DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {  
       DataSet Ds=new DataSet();
        con = new SqlConnection("Data Source=.;Initial Catalog=abc;Integrated Security=True");
        cmd = new SqlCommand("select * from salescounts where ='"+DropDownList1.Text+"'", con);
        SqlDataAdapter DA = new SqlDataAdapter(cmd);
                DA.Fill(ds);  
          if(Ds.Tables[0].Rows.Count>0)
           {
                GridView1.DataSource = ds;
                GridView1.DataBind();
                Label1.Text = "Result found:" + GridView1.Rows.Count;

            }
            else
            {
                Label1.Text = "not found";
            }

            con.Close();
        
}

Quick Suggestion :

solo_gaurav wrote:
cmd = new SqlCommand("select * from salescounts where ='"+DropDownList1.Text+"'", con);

Never Execute SQL Query like this from UI level. It will causes SQL Injection. Always used Parameterized query / Stored Procedure .

Thansk Big Grin | :-D

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
View My Latest Article

solo_gaurav26-Jul-09 7:36

solo_gaurav

26-Jul-09 7:36

hello abhijeet...corrected my code but tell me solution of my problem.. i.e how can i display data from datasource in tabular form when i select a bounded field of same data source in dropdownlist.. plz dear help me... thanks in advance Smile | :)

Abhijit Jana26-Jul-09 8:40

26-Jul-09 8:40

solo_gaurav wrote:
ow can i display data from datasource in tabular form when i select a bounded field of same data source in dropdownlist.

Gaurav,
I am not clear about your problem. Confused | :confused:

Can you please explain in details ?

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
View My Latest Article

solo_gaurav26-Jul-09 10:28

solo_gaurav

26-Jul-09 10:28

dont worry sir i did it myself ... thanks for support and co-operation.. Smile | :)

Abhijit Jana26-Jul-09 11:11