Dim dt as datatable = test.select()
dt.DefaultView.Sort = "col1 ASC"
for each dr in dt.rows
response.write(dr.item("col1"))
next
I had found out the sorting command is "dt.DefaultView.Sort", but why is it not working. Can someone shed a light.
I have a DataSet comprised of two DataTables. One of the DataTables is further comprised of the results of two different SQL calls. I need to alphabetize the results of those SQL calls. After the seconds set of results is added to the DataTable I tried the following but the end result (displayed on the page) did not alphabetize the returned results. There was no error. Can anyone advise me please. 'programs' is the DataTable name, title is the column name.
programs.DefaultView.Sort = "Title ASC";
I am trying to do something I thought would be simple but something isn't working for me.
I have a DataTable that I need to sort by a price ascending, then select an 'nth' row value. The 'nth' value is the row count/10.
[Code]....
What happens is I get the "nth" value from the original tblDeals.
Gridview Sorting is not Working Since Datatable is Empty
Code: Dim dt As DataTable = TryCast(GRDV.DataSource, DataTable)
above code is returning Empty Gridview ..
code is below
Protected Sub GRDV_Sorting(sender As Object, e As System.Web.UI.WebControls.GridViewSortEventArgs) Handles StudentAssignmentgridview.Sorting
'If showImage = False Then
' showImage = True
'End If
[Code] ......
dataTable with dataReader not working
[Code]....
I'm trying to sort GridView but I have problem with converting DataSource to DataTable. Object of DataTable is empty. I don't know how to convert it.Do you have any ideas? Here is my code:
private void SortGridView(string sortExpression, string direction)
{
DataTable dt = GridViewDzialania.DataSource as DataTable;
DataView dv = new DataView(dt);
dv.Sort = sortExpression + direction;
GridViewDzialania.DataSource = dv;
GridViewDzialania.DataBind();
}
I have a need to call Oracle stored procs to populate a gridview. I'm able to call one stored proc to get the column header text and another one to get the corresponding data. Currently I'm using a datareader, but I want my gridview to have sorting and paging enabled, so likely I'll need to read the data into a datatable and then bind the gridview to it.I've never had to manually configure a gridview - usually just use autoformatting.1. Do I essentially set up the columns manually in the gridview since it has no data to go off of in design mode? I'm guessing most of these will be Bound fields. A few of my columns are going to display date values that need to be formatted a certain way
and one column will be a link that needs to call a second method to populate a different grid. I'm not sure what the syntax for this is.
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 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.
i want to build a datagrid bound to a datatable with several columns. One column has only a dropdownlist with the number of the rows in the datatable.
Here a samplescreenshot:
[URL]
I know how to bind the columns to a grid and its no problem to create such a dropdown list with the content for me, too. But i dont know how to sort the complete datatabl after changing one value of one dropdown listbox.
So, how can i resort the values of a datatable column based on a given value and the datarow id?
I have a gridview which is bound to a DataTable. When I try to sort the gridview, it goes blank. How can I enable sorting this gridview? I know this question has been asked before, but what I'm looking for is an explanation of how to do it. Perhaps with a simple example.
I have read that I need to put some code in the on_sorting and/or on_sorted events, but I don't understand what needs to go there. Again, I want to understand the method of accomplishing this, I don't just want a giant block of code.
My sorting does not work .. When I click on my sorting, I get a server error 500.
[Code]....
I set Allowsorting="true" but sorting is not working in my GridView.Here is code of aspx page:
[Code]...
I have a problem whit sorting in my Listview... its dosent sort..
[Code]....
I also try setting editIndex to -1 in my sort function but that also doesn't work So when I am editing then sort event fire and edit item got change, so edit functionality is not working with sorting
[Code]....
have a gridview which i a using for sorting data in it.IT sorts the first time i click on cloumn in ascending order.When i click on column again , i want to sort it in descending order again , but it does not happen ,
protected void SearchResultsGridView_OnSorting(object sender, GridViewSortEventArgs e)
SortDirection sortDirection = GetSortDirection(e.SortExpression);
presenter.SortResultsView(sortDirection.ToString(), e.SortExpression);
[code]...
I have a grid view which populates data just for viewing purpose(report) . One field shows the Active/inactive status for which I am showing a checkbox..if data in database is 1 then the checkbox will be checked otherwise it'll not be checked. This field is inactive so that the User does not check/uncheck it. The issue is that this field cannot be sorted. All the fields in the gridview are being sorted.
<asp:TemplateField HeaderText="InActive" SortExpression="Inactive">
<HeaderTemplate >
<asp:Label ID="lblStat" CssClass="copyLabel" Text="Inactive" CommandArgument="Inactive"
[code]...
I have a Gridview for which I have provided Sorting, Edit functionality. I am not able to perform EDIT when I perform Sorting. After sorting edit is set on some other row. I think there is some problem with the index it is taking..
[Code]...
although i had to take the table that has my calculated column and make a view (so i could filter) and then bind the gridview to the view.
My question is as this.
1.) in order to get my calculated field i had to load my data into a table (as suggested)
2.)Add a column to the table and perform calculations
3.)make a dataview from the tables because i could not get the Gridview.datasource= ds.tables("loads").select("Deadhead <= " & sngRadius
4.)the largest of the 3 tables my query is based on contains about 7000 records. The way i have the logic & programming now everytime a new "truck location" is put in the textbox1 and "find loads/button1" is clicked. It calculates the deadhead miles of all 7000 records before filtering. I am filtering based on the deadhead miles.
Does anyone have any recomendation about how to speed this up a bit.
Also in order to get paging to work i had to rebind/filter the data again ... means looping through all 7000 records each time paging is called. This seems terribly ineffecient as i am already forced to use access instead of SQL.
Would i see a performance increase if i installed SQL or mySQL and create linked tables to the ones i use in access. or would access still be the bottleneck?
I don't know if the performance increase would be negligible as i still ultimately be getting the data from Access.
I have posted the entire code for the page below. When i originally started i didn't think there would be to much code so i left it all on one page instead of using code-behind. Would i gain anything by swapping to code-behind now?
[Code]....
I go this code that can so a manual sorting on grid view. The code works fine for "ASC", when I wanted to sort the field to DESC, it never works. Second, it also failed when I switch to another page. Case 1: By default, the column is sorted DESC, then I switch to ASC, works fine, then I switch to DESC, it failed (remain at ASC).Case 2: By default, the column is sorted DESC, then I switch to ASC, works fine, then I switch to other page, it failed (remain at DESC on new page).
[Code]....
i'm trying to sort a datatable using the typical select method*. The problem comes because the field is string defined but it's containing integer values.
With sql the problem will be solved just using something like:
select * from table order by to_number(field);
but of course it's not working properly with the method commented above (select method).
*http://msdn.microsoft.com/en-gb/library/b5c0xc84(VS.80).aspx
whn i click edit button on grid before sorting on any column it is working properly...but once i click on any column for sorting n thn click on edit then the rows get sorted again and edit is set on some other row... plz help me...herez my code..
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
gv_photo.EditIndex = e.NewEditIndex;
bindgrid("album_id");
public void bindgrid(string sort)
string str = "select * from tbl_Album";
[code]...
I added a radiobuttonlist to the page.
<asp:RadioButtonList ID="Pending" runat="server" AutoPostBack="True"
OnSelectedIndexChanged="Populategrid" Height="16px"
RepeatDirection="Horizontal" Width="755px">
<asp:ListItem Value="250">Pending Over 250</asp:ListItem>
[CODE] ..
when I use 'RowNumber' = ROW_NUMBER() OVER(ORDER BY ColumnName) then due to orderby Column name consume 76% usage. in such case what I have to do? I can see sorting taking much time in execution plan.
View 1 RepliesI have a datagrid with some data in three datacolumns. I have to apply sorting to two of the datacolumns. Is it possible without any datasource..
View 2 Replies