I am binding a data set to a GridView in VB .net. I have some custom sorting setup, and want to display an icon next to the header if one of my 3 options is selected.
I've read a lot of methods in doing this, and I see Gridviews even have a ASC and DESC header style I can associate with the view. I have 2 problems with this, though:I am sorting a List with linq on Sort Trigger, then binding it to the datagrid.
The reason I do it this way, is I want to maintain multiple sort levels, ordering by 3 columns rather than 1.
Edit for clarity Specifically what I want to do is loop through the value of a GridView's Header text, see if it matches what I have saved in viewstate, and if so add an image for that header in particular. Something essentially like below, however headerRow.Cells(y).Text is always returning "", even when the header has text:
Sub gvPatronData_RowCreated(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
Dim savedSortDirection(), savedSortColumn() As String
Dim headerRow As GridViewRow = gvPatronData.HeaderRow
I have a VB 2008 connected to my localhost SQL using DataGridview, BindingSource and DataTable. All works fine, i can add, edit and delete the row and the SQL database is also affected.
However, there is one thing that bugs me, that is sorting.
Problem My table in this database is still quite empty, it only has 6 rows
However, if I spam-click the column header, the sorting seems taking some time to sort, so that, the sorting result does not follow my mouse spam-clickings
Note: Spam Click = Clicking the mouse button in high frequency, something like click click click click click click click click click, etc
I then make a debug button to check this
Variables: Dim DebugInt As Integer = 0 Dim bs As New BindingSource
I have a listview that has multiple columns. I am wanting to sort these columns when clicking on the column header.I see there is a sort function, but am not having much luck in using it.How can i sort my listview when clicking on the column header?
I'm using a listview in my application.(view=details) when user try to sort the listview by clicking the column header i use the imageindex property to set an icon for that column header, but I don't know how to remove that icon from that column header when user clicks another column header. How should I remove the icon(picture) from the previous column header?
how one might go about binding to a gridview in ASP.Net 4 in a scenario where the first row of my gridview should be the headers, the second should be a combobox for each column and the third is the beginning of my actual datasource.
If you can imagine what I am trying to achieve is an ability to create a binding between each column in the datagrid and another datasource. This binding is created by the user selecting a value in the comboboxes. However no matter what I try I cant seem to achieve this.
Here is what I am doing. I create two buttons in a header row of a gridview that i created. The buttons are +page and -page. When -page is hit I remove the paging and all the data goes down the page and -page disappears and +page is there.
Here comes my issue When I hit +page I must be double postbacking because one row of my data disappears. I will provide the code below. What can i do to fix this??
[Code]...
So as you can see, when one or the other is hit I set a textbox to some value then i do a partial postback to my Gridview which is in that Updatepanel.
I need to create a gridview which fills its column with data from an excel sheet and for each column in the gridview, the header should contain a drop down list with listitems like telephone, name, price which the user will select and set as the header for the particular column. I imported data into gridview but I am not able to create a drop down list in the gridview. If I try to create a dropdownlist in the designer page, it is just creating the dropdownlist in the gridview header but not populating the data. So How can I create a dropdownlist in the header of the gridview while populating its column data from excel sheet.
The code I used to populate data into gridview is Dim con As String = "" Select Case Extension Case ".xls" 'Excel 97-03
enlighten me about how one might go about binding to a gridview in ASP.Net 4 in a scenario where the first row of my gridview should be the headers, the second should be a combobox for each column and the third is the beginning of my actual datasource.If you can imagine what I am trying to achieve is an ability to create a binding between each column in the datagrid and another datasource. This binding is created by the user selecting a value in the comboboxes. However no matter what I try I cant seem to achieve this.
Using VB.Net (Windows Application)I am using checkbox in the girdview column, now i want to add a checkbox in the header.If i select the checkbox in the header, all the checkbox in the column should select automatically.
I want to set header column width for grid view. I tried HeaderStyle-Width="30px". But it is depending on Item columns. The column width is setting based on item value. But I want fixed width even if it has value or empty.
I realise there is a solution for this but I am struggling to get it to convert to VB correctly.I have managed to get a cascading set of dropdowns with data based upon each others results which I was really pleased with.However due to the post back the grid will disappear until the second value is selected and looks awful.Is there anyway within VB to allow the header to stick around if there is no data within the grid view?
Parser ErrorDescription: 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:System.Web.UI.WebControls.DataControlFieldCollection must have items of type 'System.Web.UI.WebControls.DataControlField'.'ItemTemplate' is of type 'System.Web.UI.HtmlControls.HtmlGenericControl'.
Source Error: Line 66: Line 67: <asp:TemplateField HeaderText="AS of" & label2.text>
is there a chance that I change the header name of the exported data from gridview. Below is my code and its working fine. my only problem is I can't change the header name
My code
Dim strFilename As String = Now.Date.Month.ToString + Now.Date.Day.ToString + Now.Hour.ToString + Now.Minute.ToString + Now.Second.ToString Response.AddHeader("content-disposition", "attachment;filename=" & strFilename & ".xls")
I am currently working with a gridviews in asp.net(vb). I have it where I am able to pass information from gridview1 to gridview2 on the next page. However, what I need to do now is pass a variable from a column in gridview2 to the header of that page. i.e. in Gridview2 we have a column and all results are the same, the column header is StoreName and all the data for column is Sears. I know how to make the entire column invisible, but at the top of the page I need a sentence that looks like this: Store Information for Sears I am having trouble with what the code would look like for that line, all the thing I have tried have resulting in using a variable before it is declared. I need this line to be dynamic as the results will not always be for Sears.
Right now I have controls that are in my update panel and change the data in my gridview they work fine, but then i thought it would be cool to have the controls in the header of my gridview. But when i add them to my header and hit the button/run the function i get the failed to load viewstate error.[code]
I have a column in my GridView which pulls in an individual's name. Unfortunately, the name is contained in one column in the database - both first and last. I'd like to sort on the last name, not the first...is there a way for me to tell the GridView to sort based on a substring? [code]...
I have ASP gridview bound to an Entity Data source which works no problem, however when I try to programmatically change a header columns text, it appears to break the styling and will not allow sorting either, below is how I am trapping and changing the Header row column text.
Protected Sub gv1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gv1.RowDataBound If e.Row.RowType = DataControlRowType.Header Then 'retrieve the values from the userdeftable e.Row.Cells(6).Text = App.Session.Company.UserDef3 End If End Sub
I have coded my program so that when a user clicks on a column, the data is sorted in ascending/descending order.When I go to click on a column header, however, nothing actually happens.I dont get an error or anything.Here is the code that I am using to sort the records in the GridView:
Property GridViewSortDirection() As SortDirection Get If IsNothing(ViewState.Item("GridViewSortDirection")) Then Return SortDirection.Descending
I am currently trying to sort on a GridView after it has been populated with records from a SQL Server Express database. I click on a column to sort it and I get the following error: "DataTable must be set prior to using DataView." The entirety of my code is as follows: <script runat="server" >
This works great and sorts on L_Name. But I am trying to allow the user to sort the gridview themselves so I am passing in the SortExpression as a string. But I don't know how to incorperate the SortExpression into the LINQ Query. I tried Order By c. & SortExpression but that did not work.
I got a gridview which auto generates columns. One of the columns is a date field.Somehow, i cant sort the date field. It's being interpreted as a string.The data comes out a database. The datatype there is set on datetime.his is the code in the aspx file:
i have a GridView bound to a DataView. Some columns in the DataView's table are foreignkeys to related tables(f.e. Customer). I want to enable sorting for these columns too, but all i can do is sorting the foreignkey(fiCustomer) and not the CustomerName.
I have tried this without success(" Cannot find column ERP_Customer.CustomerName "):
A tried also the DataViewManager, but i've a problem to detect the table to sort:
Dim daCharge As New ERPModel.dsERPTableAdapters.ERP_ChargeTableAdapter daCharge.Fill(dsERP.ERP_Charge) Dim viewManager As New DataViewManager(Me.dsERP)
I am trying to program my page in vb.net and asp.net so that when a user clicks on a column heading of a gridview, the data is sorted either in ascending or descending order. note that my data is coming from an SQL Server Express database. So far, I have done it so that the gridview can be sorted:
I'm trying to sort records in the gridview right after a radio button is selected. My approach is with the dataview, but because the dataset variable doesn't survive a round trip to the server, I don't know how to make this happen.[code]
