I have a GridView that sorts and has paging features. I need to grab the data from the SORTED DATA from the GRIDVIEW and put it into a DataTable. Who Do I get that sorted data gridview and store it into a DataTable. I am an ASP.NET Programmer. Goal: Get and Store Sorted GridView Data into a DataTable.
View 2 Replies
is datable data store in asp.net dataset.. ?
View 1 RepliesIts related to datatable in gridview store in session and then session retrive and store to database. basically i am using gridview here creating new row for button click and these row adding untill user's last entry then submit all these entry to database. so i want to use session variable to store this data temporarily and after final entry user click on submit button and all data shold be save in db.
View 9 Replieshave a grid view with chkbox column and sme other columns ,whn i clk on the submit btn the page redirectsto next page and in the new page load i need a grid view of previous page but only with the items i checked and some extra columns .
View 8 RepliesDoes dataset store all its datatables' records into server memory if I just call one datatable from it?Lets make an example, a dataset with three datatables - tbCompany, tbCompanyStaffs, tbSalesOrderwhere tbCompany is the parent of tbCompanyStaffs. tbSalesOrder is an independant table.Does dataset load all tbCompanyStaffs records into the server memory as well when a class retrive data from tbCompany?
View 3 RepliesI'm trying to extend the GridView control to enable sorting and paging for any situation.
When using my control I am fetching data from a database and filling a DataSet with it, then binding the GridView upon every page load. My first question would be, is this the correct approach?
To sort the GridView I am overriding the OnSorting method which stores the sort expression and direction in the ViewState, then creates a DataView and utalises the Sort method to sort the underlying data. It then sets the Data Source to this DataView and rebinds the GridView.
Paging is handled by OnPageIndexChanging which simply sets the PageIndex property and again rebinds the GridView.
My problem is; when any control causes a postback my GridView is no longer sorted, presumably because it is persistently rebound. If I don't rebind it then the GridView is empty on postback since the data isn't automatically stored in the ViewState. I have considered saving the data source in the ViewState but I would assume that this is bad practice for large amounts of data? - also DataViews are not seralisable.
The only solution I can think of currently is to override OnDataBound and sort the data every time. This results in a double sort when paging triggers a postback which seems inefficient. Code illustration of this below,
[Code]....
I'm looking for the cleanest 'best practice' solution as this is a learning exercise more than anything else.
Is it possible to have 2 ListBox then when a Button is Click the Items is Sorted already to GridView accordingly. btw I have done a sort button but for LB1 only. and LB2 only.
LB1 LB2 GridView
1 A 1 A
3 B 2 C
2 C 3 B
4 D 4 D
i try casting the gridview datasource to datatable using the following code but the datatable always nothing.
Dim DT As New DataTable
DT = DirectCast(gv.DataSource, DataTable)
the gridview is bound using dataset at code behind without using sqldatasource.
i m trying to filter the gridview without geting the data from database, is there is another way to do this?
I am making shopping cart application.On Viewing Shopping Cart,when i try to update the quatity of product column it permit me to edit but wn i click update link.the gridview disappears wid all products.send me some code snippet in C# as i want only quantity column to be editable.I am using the following code:in Code behind File
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
[code]...
I see from google that this is a common problem. I have a SQL server database that contains 26 rows of data. Two columns, the first is PK and an identity column (keys numbered 1 to 26) and the second column is a text field (nchar(10)) containing a letter of the alphabet (A..Z). The letters were inserted randomly to simulate sql being unsorted by default. I have a query that returns all of the data ordered by the letter column ascending. If I execute the query in sql server I get 26 rows orderd A..Z.
I have a gridview that is set up for paging (page size = 15) and sorting. When sorting is disabled, all data is correctly displayed on the gridview, 15 rows on the first page, 11 rows on the second page.
If I enable sorting, I get 15 rows on the first page and 11 rows on the second page, however on closer examination I find two letters missing and two letters duplicated on both pages. If I navigate to page two, then back to page 1 I find that the data is then shown correctly and the missing letters are back.
Has anyone struck this issue? I am thinking that the sort is not being initialized correctly, but am not sure where to look.
I am building a SortedList object for use as the DataSource of a GridView control. The key-value pairs are being built manually with the "key" fields being inserted in already sorted order. The "key" column is invisible with the "value" column the single displayed data item. I set the DataSource property of the gridview to the sortedlist and call the Bind method. The gridview then displays the data in random fashion!
View 4 RepliesSo I have a gridview that is sortable. I also have enabled it to export to excel. The problem is that it exports the original datasource and not the sorted data on the screen. What I need is when the export control is fired, the exact gridview or newly sorted gridview is sent to an Excel spreadsheet. Here what my excel export looks like:
[Code]....
ASP.NET 3.5
I've got a Gridview bound to an objectdatasource. Sorting is enabled in gridview, but objectdatasource isn't doing any sorting. I can pick up the unsorted datatable from the Selected event of the objectdatasource, but I really want the sorted version. Is there any event on the gridview where I can access the sorted dataview it must be using internally?
Why am I asking? We're using paging as well (i.e. truncated data in gridview) and I want to loop through the full sorted dataview to find the primary key value to set selectedindex.
I want to sum of total CountDevice in footer of template
int total = 0;
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
[Code] ....
I am use sorting on column CountDevice, when sorting this column show double column in footer
For example total countdevice is 100
when sorting on column CountDevice total show 200
I am new to asp.net.I am buliding an online shopping application.Could anyone tell me the steps to edit records in gridview which have its datasource i.e. datatable.Means the shopping cart wil display its products.i want to do editing in gridview say quantity or product which automatically edit records(quantity) in datatable and then gridview wil again get bind to new edited datatable and able to show edited records say edited quantity of taht product.
View 4 RepliesI have one gridview and i want to take all the values in a datatable or dataview.
I tried like this
DataTable gridTable = (DataTable) dataGrid1.DataSource;
but gridTable is showing null, it should not show null because gridview has lot of records with 3 columns
Is there any way i can convert/store a gridview.Datasource records in a datatable or dataview?
I have a gridview which displays images as shown in the code below. When the page loads the images load fine. But when any of the columns are sorted, the images are not displayed. In the page source view the grid still hold reference to the images when they were first loaded.
How do i bind the images so that they sort when the other columns are sorted.
[Code]....
i have the dataset with one table.Table contains three column like 'Name','Location','Pin'.I would like to move the data from another table based on schema.
View 2 Repliesi need an example of DATATABLE.. with gridview
like i have fields name..
product_name(using dropdown and filled by database)
product_price (using label price comes on dropdown item name selection from database)
Product_quantity(using textbox and user make input)
product_amount(using label display calculated amount by quabtity and price)
and i want to store in datatable... row by row
and after sometime press on submit button i want to store in database ..
can we store datatable into hiddenfield.
View 1 RepliesI have a stored procedure in my database that sorts a dataset by distance from the specific address input by the user. The distance is created among each individual users query and the sorting of distance occurs within my stored procedure, the distance is not returned in the output. Is there a way I can create a temporary column that returns the distance so that I can give the user an option to sort by distance?
View 9 RepliesI need to store time in database and then show in using gridview.I wonder how to store and show data so that user will see correct datetime depanding on his timezone?
View 6 RepliesI have a delimted file , like a csv file but the delimters are # and not ,
I assume I would use SqlConnection and SqlDataAdapter
So for a csv file what is the sequence to read in for example c:datademo.csv
What would the connection string be.
Also can you specifiy a different delimiter.
The code below is what I assume it would possibly look likea although its only a frst guess.
[Code]....
I am trying to populate a gridview using two tables. I also have a strongly typed dataset and used the method on this page: [URL] the problem is that, when i try to use two table the gridview does show up (I checked through debugging that the datatable comes back as empty).
View 2 RepliesI have two datatables, I want to get all records which are in one datatable but all matching records which exist in another datatable should not be available.
In terms of set, you can say that record which are in 1st datatable but not in 2nd DataTable.
