ASP.NET

PSK_22-Mar-10 18:24

PSK_

22-Mar-10 18:24

When you add resource in the resource file in a web application it doesn’t get marked with the WebResource attribute, it means that you can not access this on the basis of the ui culture using a resource manager. This is more appropriate for control development. I suggest you to manually load the js file on the basis of the ui culture. Instead of embedding the js file in global resource, place them in a separate folder and load them accordingly.

Regards,
Prakash Kalakoti

M. J. Jaya Chitra22-Mar-10 18:49

M. J. Jaya Chitra

22-Mar-10 18:49

Dear Prakash,

Thank your for your hint.

Can you tell me how to load the JS dynamically by having them in the web application.

Best Regards,
M. J. Jaya Chitra

PSK_22-Mar-10 19:05

PSK_

22-Mar-10 19:05

Check the Thread.CurrentThread.CurrentCulture.Name and register the script using CleintScript.RegisterClientScriptInclude method like

ClientScript.RegisterClientScriptInclude("MyScript","MyScript.en-GB.js")

Regards,
Prakash Kalakoti

efficiently paging very large record set (~500000) records

M. J. Jaya Chitra23-Mar-10 15:08

M. J. Jaya Chitra

23-Mar-10 15:08

Thank you so much it is working fine.

Best Regards,
M. J. Jaya Chitra

uglyeyes22-Mar-10 15:13

Re: efficiently paging very large record set (~500000) records

22-Mar-10 15:13

Hi,

I am using datalist in c# web application. the site was fast till about I had 2000 records now it slowed down and I need to efficiently page the data rows. I followed this article.

http://aspnet.4guysfromrolla.com/articles/031506-1.aspx

but, it only gives me 10 records at a time but the actual result is ~500000
in my below code
<pre>
List<Advert> adverts = new List<Advert>();
PagedDataSource pds = new PagedDataSource();
pds.AllowPaging = true;
adverts = myBLL.GetAdverts(country, city, adtype,pds.CurrentPageIndex,pds.PageSize);
PropertyListCount = adverts.Count;
pds.DataSource = adverts;
pds.PageSize = 10;

</pre>

I know i am only getting 10 records as its only retrieving 10 records for the firsst time for Page No 1
but how can i display other page numbers so when user clicks Page 2 the parameter becomes
pds.CurrentPageIndex=10 and pds.PageSize=10?

please help I hope my question is clear enough to understand.

thank you

Not Active22-Mar-10 15:32

Re: efficiently paging very large record set (~500000) records

22-Mar-10 15:32

How about this one, http://www.4guysfromrolla.com/articles/081804-1.aspx[^]

I know the language. I've read a book. - _Madmatt

uglyeyes22-Mar-10 15:43

Re: efficiently paging very large record set (~500000) records

22-Mar-10 15:43

this is exactly what i am doing. its little show. takes about 5secs to display 35000 records. is there something funny i might be doing? or it is normal for it to take 5 secs?

well its queries "select * from table" but this operation might take long?

Not Active22-Mar-10 16:09

Re: efficiently paging very large record set (~500000) records

22-Mar-10 16:09

You should change your query to return only the number of records necessary for the page.

I know the language. I've read a book. - _Madmatt

uglyeyes22-Mar-10 16:44

Re: efficiently paging very large record set (~500000) records

22-Mar-10 16:44

I tried that too. it returns 10 record and there is no page 2 or 3

below is the query

SELECT *
FROM
(SELECT *,
ROW_NUMBER() OVER(ORDER BY adid) as RowNum
FROM advert e
) as DerivedTableName
WHERE RowNum BETWEEN @startRowIndex AND (@startRowIndex + @maximumRows) - 1

Not Active22-Mar-10 16:51

Re: efficiently paging very large record set (~500000) records

22-Mar-10 16:51

There are a lot of articles that cover datalist paging, like this one[^] or this one[^]

I know the language. I've read a book. - _Madmatt

uglyeyes22-Mar-10 17:06

Re: efficiently paging very large record set (~500000) records

22-Mar-10 17:06

Hi again, this article http://aspalliance.com/157_Paging_in_DataList was someway useful but I have already done that part and it mentions the disadvantage at the end of the article too..

so I changed my database call to add extra parameter i.e. currentindex and total rec to display per page

<pre>
public void AdList(Navigation navigation)
{
List<Advert> adverts = new List<Advert>();
PagedDataSource pds = new PagedDataSource();
pds.AllowPaging = true;
//Based on navigation manage the NowViewing
switch (navigation)
{
case Navigation.Next: //Increment NowViewing by 1
NowViewing++;
break;
case Navigation.Previous: //Decrement NowViewing by 1
NowViewing--;
break;
case Navigation.Last: //Make NowViewing to last page for PagedDataSource
NowViewing = pds.PageCount - 1;
break;

default: //Default NowViewing set to 0
NowViewing = 0;
break;
}
adverts = myBLL.GetAdverts(country, city, adtype,NowViewing,pds.PageSize);
PropertyListCount = adverts.Count;
pds.DataSource = adverts;
pds.PageSize = 10;
//Set the current page index
pds.CurrentPageIndex = NowViewing;

// Disable Prev, Next, First, Last buttons if necessary
lbtnPrev.Enabled = !pds.IsFirstPage;
lbtnNext.Enabled = !pds.IsLastPage;
lbtnFirst.Enabled = !pds.IsFirstPage;
lbtnLast.Enabled = !pds.IsLastPage;

dlPropertyList.DataSource = pds;
dlPropertyList.DataBind();
}
//DataList Pagination Scripts
protected void lbtnPrev_Click(object sender, EventArgs e)
{
PropertyList(Navigation.Previous);
}
protected void lbtnNext_Click(object sender, EventArgs e)
{
PropertyList(Navigation.Next);
}

protected void lbtnFirst_Click(object sender, EventArgs e)
{
PropertyList(Navigation.First);
}

protected void lbtnLast_Click(object sender, EventArgs e)
{
PropertyList(Navigation.Last);
}

public enum Navigation
{
None,
First,
Next,
Previous,
Last,
Pager
}

public int NowViewing
{
get
{
object obj = ViewState["_NowViewing"];
if (obj == null)
return 0;
else
return (int)obj;
}
set
{
this.ViewState["_NowViewing"] = value;
}
}
---STORED proc script
select ROW_NUMBER() OVER(ORDER BY adid) as RowNum,
* from advert where isActive=1 and
c.countryname like '%'+@CountryName+'%' and
a.adcity like '%'+@AdCity+'%' and
a.AdSubCatType like '%'+@AdSubCatType+'%'

) as DerivedTableName
WHERE RowNum BETWEEN @CurrentPageIndex AND (@CurrentPageIndex + @PageSize) - 1
order by adDate desc

</pre>

but this gives only 10 records in one call so how can i display total records, next and previous etc?

uglyeyes22-Mar-10 19:43

Re: efficiently paging very large record set (~500000) records

22-Mar-10 19:43

can someone please help me. I need a fastest way to display datalist with hugh record set in website.

Arindam Tewary22-Mar-10 21:58

Arindam Tewary

22-Mar-10 21:58

You might try MultiThreading here. Each thread would pull 'n' number of record set from database. Hence if you are having 2 thread for pulling data from database your performance is doubled. Currently if 35000 record is fetched in 5 seconds, then if you use 2 thread for data pulling then you could get 70000 records pulled from database in same 5 seconds.

But the risk is that correct multithreading can provide you very enhanced reformance, whereas if not implemented correctly it can lead to severely affecting the exising system.

Thanks,
Arindam D Tewary

Re: efficiently paging very large record set (~500000) records

uglyeyes23-Mar-10 2:04

23-Mar-10 2:04

I am sure there must be an alternative solutions other than multi-threading. I saw this article http://www.netomatix.com/Development/DataListPaging.aspx in this article it users query string but how can i use it without having to use querystring

could someone please help? I now have created two stored proc one returns the total count of the result which is about 35000 and the one to display for a page currently being views i.e.

adverts = myBLL.GetAdverts(country, city, adtype,NowViewing,pds.PageSize);
-SQL

SELECT *
FROM
(
select ROW_NUMBER() OVER(ORDER BY adid) as RowNum,
a.*
from advert
where isActive=1 and
c.countryname like '%'+@CountryName+'%' and
a.adcity like '%'+@AdCity+'%' and
a.AdSubCatType like '%'+@AdSubCatType+'%'

) as DerivedTableName
WHERE RowNum BETWEEN @CurrentPageIndex AND (@CurrentPageIndex + @PageSize) - 1
order by adDate desc

load page

future383922-Mar-10 14:32

future3839

22-Mar-10 14:32

hey. am new in asp.net. Actually, I have a series of component and would like these component come invisible before.although I invisible the properties, I need to make them invisible before loading page. I am lloking for sth like page load but don't know when and where to write it.
thx for ur help in advance

Re: load page

Not Active22-Mar-10 15:14

Mouse Over ASP [modified]

22-Mar-10 15:14

Your post isn't exactly clear. If you set the visibility property of the control it will be not be visible when the page loads.

I know the language. I've read a book. - _Madmatt

Dalek Dave22-Mar-10 13:17

22-Mar-10 13:17

I have an ASP page, and want to have a hover changing style event.

Here is the code for the hyperlink.

<asp:HyperLink ID="HyperLink1" runat="server" BorderStyle="None"
                   Font-Underline="False" NavigateUrl="~/Default.aspx"
                   ToolTip="See Overview of Cardington Site">

                   Cardington</asp:HyperLink>

I was thinking there is a way of doing a StaticHoverStyle, but I think I can only do that in a MENU item.

Is there a way of doing a mouse over change easily?

PS Using VB as code behind.

------------------------------------

I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave

modified on Monday, March 22, 2010 7:28 PM

Not Active22-Mar-10 13:26

22-Mar-10 13:26

Just add the events to the link

<asp:HyperLink ID="HyperLink1" runat="server" BorderStyle="None" 
                    Font-Underline="False" NavigateUrl="~/Default.aspx" 
                    ToolTip="See Overview of Cardington Site"
                    onmouseover=MouseOverFunction onmouseout=MouseOutFunction>
                    Cardington</asp:HyperLink

I know the language. I've read a book. - _Madmatt

Dalek Dave22-Mar-10 13:44

22-Mar-10 13:44

<asp:HyperLink ID="HyperLink1" runat="server" BorderStyle="None" 
                    Font-Underline="False" NavigateUrl="~/Default.aspx" 
                    ToolTip="See Overview of Cardington Site"
                    onmouseover = bgcolor="Red" onmouseout = bgColor="Aqua">
                    Cardington</asp:HyperLink>

I put this line in but it is not a happy bunny.

It is suggesting that if this statement contains quotes, then they must match, but they do.

When I build it fails

Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: The tag contains duplicate 'bgColor' attributes.

Source Error:

Line 95:             <td bgcolor="Aqua" class="style15" style="border-color: #00FFFF" width="88">
Line 96:             
Line 97:                 <asp:HyperLink ID="HyperLink1" runat="server" BorderStyle="None" 
Line 98:                     Font-Underline="False" NavigateUrl="~/Default.aspx" 
Line 99:                     ToolTip="See Overview of Cardington Site"

------------------------------------

I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave

Not Active22-Mar-10 14:06

22-Mar-10 14:06

Of course its not happy, that is not the correct syntax. Roll eyes | :rolleyes:

onmouseover="this.style.bgcolor='Red'" onmouseout="this.style.bgcolor='Aqua'"

I know the language. I've read a book. - _Madmatt

Dalek Dave22-Mar-10 14:18

22-Mar-10 14:18

Yeah, see below!
I beat you to it Smile | :)

I forgot I was in ASP.

------------------------------------

I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave

Dalek Dave22-Mar-10 14:11