I follow the following link for add dropdownlist in gridview.Adding Dynamic Rows in GridView with DropDownLists in ASP.Net..In this template field the drop down list contain 500 items how can i search the paticular item
View 1 RepliesI am having nearly more than 80 thousand records and i need to export in .csv format.
I need to export to woksheet.
I need to export nearly 65 thousands of records in one sheet,
When it reached the limit, it should exported in the next sheet.
I want to insert a large amount( approx 7000 records) of data into a table, My scenarios is that i need to check whether the record already exists then it will not insert it. Currently i am using a stored procedure for this which gets called for each record.
IF EXISTS(SELECT 'True' FROM MYTABLE WHERE ID = @ID)
BEGIN
--This means it exists, return it to ASP and tell us
SELECT 'This record already exists!'
END
ELSE
BEGIN
--This means the record isn't in there already, let's go ahead and add it
SELECT 'Record Added'
IF EXISTS(SELECT 'True' FROM [Aadil].[dbo].[SharePointSitesData] WHERE ID <> @ID)
I have an ASP.net VB Web app I'm working on that has a requirement to provide a list of all our component part numbers to our engineers for selection into a custom Bill of Materials for reworking of an assembly. The list of part numbers is currently generated from a stored proc in our MRP systems/SQL database. The number of records being generated is slightly over 39K part numbers.
Although the SP only takes a few seconds to generate the data the web page is taking a couple of minutes to load, primarily because of the time to fill the control presenting the records to the engineers. I've bound the data to a combobox control to the engineer. They want to be able to type the first few characters of the part number if they know it and have the list filtered or be able to just scroll the data to find the part they are looking for.
I've read elsewhere that they may be a way to only populate a certain quantity of records rather than all 39K then filter based on the users actions. Unfortunately the discussions about doing this didn't provide any examples, references, etc.
My questions are these...
Is there a better way to handle this quantity of records than a stored proc and combobox? A
ny examples of a method to populate a certain number of records then filter based on user action?
In my database m having 1000 record and I want to display 10 record on each page on gridview so every time it fetch 1000 record so while page loading it is quite time consuming ..
View 1 RepliesI have a user control that is common to the application. It searchs for lakhs of Items in one go from the db and I set the selected Items in a list in a session to pass on to the pages that use it. Hence making the application a tad slower. The gridview that contains the Items should have sorting, page indexing. What according to u,I should do to enhance the application's performance ?
View 1 RepliesI've created a dropdownlist that pulls from a SQL table with 241 rows. For some reason, the list only shows 168 rows? What am I doing wrong?
View 4 RepliesI have a web in asp.net and code in vb and sql database. There is a dropdownlist ina page the length is too big. How can I set to multi row or some other kind....
View 1 RepliesI am returning records from the database and I need to compare those records against my checklist box to determine which ones should be checked.
Query is working properly and returning 3 records.
Vehicle ID = 40, Option ID = 1
VehicleID = 40, Option ID = 36
VehicleID = 40, Option ID = 37
[Code]....
This is not working, can anyone point me in the right direction???
i want to apply color to selected number of items in checkbox list and seleted number of items in drop downlist for e.g color red for few items and black (default). I have a bit value set in data base so if bit is set to 0 then red and if 1 then back.
View 5 RepliesI need to bind my dropdownlist to my dataset that is returning application specific text values. But for purposes on that page, i need to assign the value to each one starting at 0 to the number of items returned from my dataset..
Example, if my dataset only returns 1 item, the value of that item needs to be 0
[Code]....
If my dataset returns 4 items, the value of those items needs to be 0 thru 3
[Code]....
Is it possible to assign values like that to a dropdownlist from the code behind?
I am dealing with a problem that i have to make decision based on the number of items in a cascading dropdownlist. unfortunately this ajax toolkit control does not expose a Items collection.how do i count the number of items in this control ?
View 1 RepliesI have a html.dropdownlist on my webpage as follows: <%=Html.DropDownList("MyDropDown", Model.Data, new { @class = "dropdown"})%> I am populating the dropdown with ~80 items. The issue is that when I click the dropdown the list of items is rendered from the top of the screen to the bottom of the screen. How can I set up the dropdownlist so that it only displays a maximum of 20 items when the dropdown menu is clicked (i.e. user needs to scroll down to see items 21 - 80)?
I was anticipating (!) that there would be a html.dropdownlist property to control the number of displayed items that would allow something like the following e.g.: <% =Html.DropDownList("MyDropDown", Model.Data, new { @class = "dropdown", rows ="20"}) %> From research I have been doing on the msdn website it appears that there is no such property and that each browser has its own rules of how many items are displayed in a dropdownlist (?).
i want datalist to show only 6-8items ,as these datalist is connected to datasource which has more than 20 items..
like in facebook,we have lots of friends but in friend box only 6 friends is shown and when we click that we go to next page which display all list of friends...
I have a dropdownlist for categories.
DataTextField = "Name";
DataValueField = "ID";
drp.Items.Clear();
drp.Items.Add(new ListItem("--select category--", ""));
drp.AppendDataBoundItems = true;
ID is int and I've got this
drpsub.Items.Add(new ListItem("--select category--", ""));
I want to insert some information plus ID in databaseeverything is ok when user select category from dropdownlist (for example: India, Iran, China) but when the userchoose --select category-- she face an error because the value here is "" not an ID(int value)how can i don't let user choose --select subcategory-- ?
I have one application and there are 1500 users of that application.When 200 users logged in application that time login page and other pages of applications are not opend. I want to manage 1000 of users at a time.
View 1 RepliesHow to resize large number of images in a folder in c# windows application. I am using following code to resize images of my folders. If images are less than 1600 ( in number) then no problem but if images are more than 1600 then i am getting error. My code is given below:-
public static Image ResizeImage(string file, int width, int height, bool onlyResizeIfWider) {
using (Image image = Image.FromFile(file)) {
// Prevent using images internal thumbnail
image.RotateFlip(RotateFlipType.Rotate180FlipNone);
image.RotateFlip(RotateFlipType.Rotate180FlipNone);
[Code] ....
Thumbnail creation in ASP.Net: System.Runtime.InteropServices.ExternalException: A generic error occurred in GDI
I tried to find out about subject but with no success. The point is that in the beginning I've made many user controls. My site is too slow. I have not idea yet if it is because of user controls.
View 7 RepliesI have developed one simple application in that i am using mysql database. but my database size more thatn 4,50,0000, as well as ecah and every second my database is updated i.e record ll be added to the table how can i get the details for one single click.
View 1 Repliesprotected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrict();
}
[Code]......
here when i click on ALL item from ddlzone1 it just "ALL" item in ddldistrict
i want when i select "ALL" item from ddlzone1 in ddldistrict14 show all data from database
I am working on a website in which more than a thousand users can login at a time and there may be more than 50000 total users. I am worried about the performance of the application in case of concurrent access.
what is the best way to manage that, so that my application runs without any performance issues.
I'm running a ASP.NET website on my development box (.NET 2.0 on Vista/IIS7).
The Session_Start method in global.asax.cs logs every call to a file (log4net).
The Session_End method also logs every call.
I'm using InProc session state, and set the session timeout to 5 mins (to avoid waiting for 20 mins).
I hit the website, wait for 5 minutes unit I see the Session_End logging. Then I F5 the website. The browsers still has the session cookie and sends it to the server. Session_Start is called and a new session is created using the same session id (btw: I need this to be the same session id, because it is used to store data in database).
Result:
Every time I hit F5 on a previously ended session, the Session_Start method is called.
When I open a different browser, the Session_Start method is called just once. Then after 5 minutes the Session_End each F5 causes the Session_Start method to execute.
Update:
After the Session timeout, all subsequent requests have a session start & session end. So in the end my question is: why are the sessions on these subsequent request closed immediatly?
[code]....
I am building a small mass email application for my department. Which basically emails out a notice to a large list of email addresses. Because the company email server limits the amount of email addresses that can be contained in a single email I have to break the list apart into smaller 100 email groups.
I've create the query to pull all email addresses needed, stuffed them into a collection but I am not sure how to grab 100 emails at a time and send it off to another sub to perform the email send before grabbing the next 100.
This is what I have so far.
[Code]....
Handling large number of images downloaded from server
View 4 RepliesWorking on a heavy ajax based site with over 100 methods from all the ajax calls inside each of each controller all with basically the same code.Was thinking of changing them to a big case statement for readability which would keep the code a bit more dry and make it easier to read.What I am wondering is: Will there be a performance hit and is there a better way to deal with it?
View 4 Replies