Web Forms :: Sort Datatable Does Not Work Properly?
Mar 15, 2010
now i use the dataview to sort the seq of datatable and bind to repeater, it can only display the seq correctly.but i found that it is not the actual database seq, when i remove the row from the datatable, it is not remove the record that i see from the UI.do i need to sort the seq to the actual datatable not the dataview.now i use the seq (int) in datatable to sort the datatable as belows:
I'm looking for a way to sort the rows of a datatable without setting the DefaultView.Sort to a specific column. I have a datatable in session that users can add records to. I want them to be able to sort the data by clicking on a button. But new records added after that need to show up at the bottom of the list until the sort button is clicked again.
Tried several different ways to do this but am just not seeing it. Proably a quick solution for someone more skilled than me.
I have a gridview generated from a datatable. One of the columns is "client name" whose data is generated from a class.
I added a link button for the column header that fires a sub that should sort the datagrid, but is not.
Here is the code I have so far that creates the gridview which works fine:
Private Sub PopulateCaseListGrid() 'Kill the existing DataSource, in case of a page reload gvCaseList.DataSource = Nothing 'Create a datatable with whatever column you want to use
Is it possible that once I have created a datatable programatically, I can then sort that datatable before binding it to a asp:repeater? I have a number of records that I have to get from a com object that has not been eliminated. The com object populates an array, then I loop through the array to pull data from my datatbase, adding the db data to the datatable. Then I bind the datatable to a repeater.
1) the array is multidimensional 2) The COM object doesn't sort the data by company ID (which is what I need to do)
I have seq no col in the datatable.how can i order by the seq no so that re-arrage the datatable.or other method have the sort function.and then bind to repeater.
I have a repository that contains all of my LINQ queries for this project that I am working on. I am able to get the LINQ results to a DataTable and bind that to a gridview for displaying the data. Now I need to make the gridview sortable. I have set AllowSorting="true" and I have the OnSort event handled in a routine in the codebehind.
I have got a datatable which contains many columns in which three are main:
hotelid dshotelid hotelname
Some hotels contain only dshotelid, some contains only hotelid and some contain both dshotelid and hotelid.
I need sort in such way so that those hotels who got both dshotelid and hotelid should be on top and then those hotels who have got only dshotelid and at last those hotels who have got only hotelid...
How to Sort The datatable in asp.net. after binding the dataset values i have stored into one table how can i sort the values of the dataset in asp.net with C#
cmd ="select [title] from products where sku='% "3.5 caddy" %'"
this statement wont return anyfin where there is products with titles startin with 3.5 or ending with caddy or containing 3.5 caddy but just not together for example there is this title "3.5" IDE to USB 2.0 Aluminum External Silver HDD Enclosure Caddy" and that search of 3.5 caddy wont pick this item up as 3.5 is at the start and caddy is at the end.
I am trying to sort a DataTable. If I declare a DataView and use the following approach it works perfectly:
Dim dt As DataTable = getData() Dim dv2 As New DataView(dt) dv2.Sort = "surname, name" dt = dv2.ToTable
I wanted to do this without using a DataView though if possible to reduce the impact on resources. I tried the following approach but it doesn't work. I might be writing the code wrong so
Dim dt As DataTable = getData() dt.DefaultView.Sort = "surname, name"
How do I sort a data table based on a particular column which has integer values in ascending order?
I wrote this:
leadtable.DefaultView.Sort = "Id"
But it doesnt seem to work, it displays fine but when i get try to get the values of the sorted datatable in an array they dont come in an sorted ordere Datatble is defined as:view plaincopy to clipboardprint?
I populate a DataTable, then sort the DefaultView of that DataTable. When I set the DataTable as the source for my report, the sort doesn't work. here is the code (GetData returns a valid DataTable):
Dim dt As DataTable = a.GetData(Parm1, Parm2, Parm3) If rbtSortByField1.Checked Then dt.DefaultView.Sort = "Field1 ASC" ElseIf rbtSortByField2.Checked Then dt.DefaultView.Sort = "Field2 ASC" ElseIf rbtSortByField3.Checked Then dt.DefaultView.Sort = "Field3 ASC" End If rpt.SetDataSource(dt.DefaultView.Table) 'This also doesn't work 'rpt.SetDataSource(dt)
why my upload control will not work properly when placed inside an ajax tab control? If I place it outside the tab control everything works great.Here is what I'm trying.
The values are number but varchar, for example '100', '73', '87'. When i see the data this return 100, 87, 73, when should by 73, 87, 100 how can i sort the data????
I have a ListBox1 on the Form that I read in the same Directories: "GetS" as in the code below.
Now I select the first index wich is 0 in the listBox with the mouse and press Button1.
What the code below does is to find that specific folder that also contains a .BMP file and a file: File1.txt
So I will first delete the .bmp file and the File1.txt and at last the directory.
My problem is as follows. When I press Button1 the First time, nothing at all was deleted but the second time I press the Button1, the .BMP file and the File1.txt were delete fine.
But the code breaks at this line and says that the directory isnīt empty. But the directory is empty as I can see when open it manually.
So initially my problem is why the .BMP, File1.txt and the directory arenīt deleted at the first press of Button1 ? (ListBox1 has AutoPostBack set to TRUE and everything is put inside an updatepanel)
I have a Datagrid one of the colums is a checkbox and when it is selected I' m supposed to update that row. I have a button to update this outside the Datagrid. It seems to work well for the first two rows but after that meaning starting 3 to any it just doesnt update no errors but doesnt update. When I look into the id it seems to be empty.
Private Sub btnInactivateAllSelected_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnInactivateAllSelected.Click ' 'Function declarations Dim currentMethod As String = MethodBase.GetCurrentMethod.Name 'Object declarations 'Variable declarations Dim ruleID As Guid = Nothing Dim oRule As PSXSTL.Digecenter.Rule = Nothing Dim changetext As String = Nothing 'Start Try...Catch statement _moduleName = "btnInactivateAllSelected_Click" Try For Each item As DataGridItem In GroupDataGrid.Items If CType(item.FindControl("chkApprovalCheck"), CheckBox).Checked = True Then ruleID = GroupDataGrid.DataKeys(CInt(item.ItemIndex)) oRule = New PSXSTL.Digecenter.Rule(DirectCast(Session("CustomerID"), Guid), ruleID) If oRule.Complete Then oRule.RuleStatus = False oRule.ActiveDate = Now.ToString changetext = "On " + Now + " " + Session("FirstName") + " " + Session("LastName") + " deactivated the Rule." If Not oRule.ProofReviewed Then changetext = changetext & " PDF not viewed" End If LogEditHistoryItem(changetext, ruleID) ' Call ' added 10/19/2004 by Rob MacMorran LogBulkOrderHistory(oRule) oRule.Update() End If oRule.Dispose() End If Next ' Server.Transfer("customer_clientrules_results.aspx") Catch ExceptionObject As Exception 'Write the exception out to the event log. EventLogHelper.LogException(ExceptionObject, _moduleName, "Error occurred in " & _moduleName & "/" & currentMethod & ControlChars.CrLf & ExceptionObject.StackTrace, EventLogEntryType.Error, 55555) Finally 'Cleanup 'Object disposal If Not oRule Is Nothing Then oRule.Dispose() oRule = Nothing End If 'Variable disposal ruleID = Nothing changetext = Nothing 'Function variable disposal currentMethod = Nothing End Try Server.Transfer("customer_clientrules_results.aspx") End Sub
I have a page which lists all the files in a particular folder (all PDFs), using a data-table and gridview.
I'm currently sorting this table by the filename (by using a dataview), which isn't that helpful, and I want the gridview of files sorted by the file created or file modified date (as recorded in Windows).
If that's not possible, a second option would be to extract the date from the file name string (no problem doing that), and sort the dataview/datatable or gridview based on that. Example Filename: DailySalesReport-1-15-2010. My only hangup with this is how do I sort on date, when it's a string value? Convert to date? How would I sort the whole dataset based on this converted value?
I want to orderby the list. Today date is on the top and then next date and all dates but when today date is passed then it comes on the end of the list. Is there any formal query in linq or some other code is used to achieve this?
08/01/2015 09/01/2015
but when today is passed then it automatically go to end and next today date is on the top
I have both the wcf and asp.net project together in the same project. (I'm running on Azure, so this is more convenient).I have this set in the web.config:
<system.serviceModel> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" /> </system.serviceModel> y wcf service is decorated with: [code]...
