I'm trying to display the sum of a numeric field in the footer of my datagridview. Here's my code so far:
Code:
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
Dim TotalHours As Decimal = 0
If e.Row.RowType = DataControlRowType.DataRow Then
Dim RowTotal As Decimal = Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "Hours"))
[Code] ....
The text in the footer shows up and there are no errors, but the total is always 0, so obviously my code is not actually totalling any of the values. All of the info I've found about this refers to using a datatable, which I don't know how to do. I'd be happy to learn, but I'm afraid of breaking my existing datagridview, which works perfectly well as is except for the total.
I'm trying to give the user the ability to create a new record from the footer row and my event handler doesn't seem to be working... or maybe I'm going at this all wrong.
The insert button that I enabled in the gridview doesn't work either...checkout the site at [URL]
I have a gridview that needs to show the net balance.
Eg,I need to display the net Total amount at the footer.
So with the amount at the gridview, I should have $0.00 balance in the gridview. But I couldn't get it display.
Here is my code:Protected Sub gvTransRecord_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvTransRecord.RowDataBound[code].....
I want to have footer to insert the records in Gridview,I m binding the Gridview with the DataTable.
On page load ,I have no row in DataTable,SO Gridview is not shown.SO i insert the one row in DataTable on Page load so dat the Gridview is displayed.
I want to ask that is it possible to display Gridview on page load ,widout havng a row in DataTable because on page load I do not have any row in Datatable
In my .cs file i calculate value of BV, MV, KV total value with this code and i assign to a Label. Labels are under the Gridview. BUT, some customer names long some of short, because of that, labels location changing according to Gridview. Because of that i don't want use Label.
I calculate a value with this code, and how can i assing BV, MV and KV columns footer this value?
How do I do this? Basically, next to the page numbers in the GridView I want a link button to disable paging. This works, but I want the button inside the footer of the GridView, next to the page numbers.
On my aspx page, I'm having troubles when I have an update panel within the footer template of a gridview. It appears to be an intermitent problem that occurs on subsequent postback when you do a delete command in the gridview. The first delete command always goes through fine (first postback). Clicking on another row to delete on the gridview (or any other button on the form) triggers this error: An error has occurred because a control with id 'ctl00$SupremeContent$grdLineNumbers$ctl09$ctl00' could not be located or a different control is assigned to the same ID after postback. If the ID is not assigned, explicitly set the ID property of controls that raise postback events to avoid this error.
If you click the back button in the browser, then click on another page, then come back to this page, you can delete another record. Another attempt to delete another record brings you back to the above problem. Thectl00$SupremeContent$grdLineNumbers$ctl09$ctl00 changes each time you delete, come back to the page and delete. If I disable the udpate panel, there's no errors. The reason I have the update panel is so that the user can select the relevant pipe specification (they see multiple columns using a textbox, drop down extender, panel and gridview) without the form's data being reset by the embedded gridview's selected index changed event. I've been trying to figure this out for a month now. Oh ya, this form is within a master page.
Here's the gridview code:
[Code]....
And this is the event that handles the delete command:
I have created a gridview dynamically from scratch and added it to my aspx page. This works fine, but i have a button in the footer of on of the columns, which when clicked on makes the gridview disappear and doesn't fire the onclick event that it should. This should obviously not be the case. My question is why does the event not fire and why does the gridview vanish? Bear in mind i have never created aa gridview in the code behind before, so excuse me if i am being dense
Code creating columns Dim gvTownships As New GridView 'COLUMNS Dim tmpCategory As New TemplateField tmpCategory.ItemTemplate = New cGridViewTemplate(DataControlRowType.DataRow, "Category") tmpCategory.HeaderTemplate = New cGridViewTemplate(DataControlRowType.Header, "Category") tmpCategory.FooterTemplate = New cGridViewTemplate(DataControlRowType.Footer, "Calculation") 'INFORMATION gvTownships.AutoGenerateColumns = False gvTownships.ID = cmbChoice.SelectedItem.Text gvTownships.ShowFooter = True gvTownships.CssClass = "mGrid" gvTownships.RowStyle.Wrap = False gvTownships.HeaderStyle.CssClass = "mgrid" gvTownships.HeaderStyle.Wrap = True gvTownships.FooterStyle.CssClass = "mGridtf" gvTownships.AlternatingRowStyle.CssClass = "alt" gvTownships.GridLines = GridLines.Both 'add columns gvTownships.Columns.Add(tmpCategory) gvTownships.DataSource = dstSuburbTowhShip gvTownships.DataBind()
Code to add button to footer
Sub InstantiateIn(ByVal container As System.Web.UI.Control) _ Implements ITemplate.InstantiateIn Case DataControlRowType.Footer If columnName = "Calculation" Then Dim btnCalculate As New Button btnCalculate.Text = "Calculate" btnCalculate.CssClass = "button" 'add handler AddHandler btnCalculate.Click, AddressOf btnCalculate_Clicked container.Controls.Add(btnCalculate) End If Case Else ' Insert code to handle unexpected values. End Select End Sub Private Sub btnCalculate_Clicked(ByVal sender As Object, ByVal e As EventArgs) Try Dim btnCalculate As Button = CType(sender, Button) Dim gvRow As GridViewRow = CType(btnCalculate.NamingContainer, GridViewRow) btnCalculate.CommandArgument = "Calculate" Catch ex As Exception End Try End Sub End Class
I have used the above grid view in my application ... Its working good, no problem.
Upon clicking the Addnewrowbutton, it uses to create a new row dynamically.
What i need is, new row should also be created dynamically, upon pressing enter key in the last textbox on a particular gird view row. User always can't go and click addnewrowbutton every time to create new row. Instead of it, user can press enter in the last textbox on a particular grid view row to create new row.
The datasource of the datagrid is a LINQDataSource which relies on the value of a dropdownlist. In addition, I want to use the footer to insert new records - so I'd prefer not to use the empty dataset template. I am trying to find a way to always display the footer regardless if the datasource is empty or not.
EDIT: Is there a way to create an empty/invisible object of the type in the LinqDataSource?
i have a gridview to disply the customers forecast details with quantity. i need to have the quantity total in footer of the gridview. how can we do this in gridview..
but in the output for footer its created one more column at the end but i dont want to create a new column for this footer because all other detail cells are empty. i want to show the Footer without affect any other columns.if i include the footer code in the mid of the bound field then also its created a new column so the details cells are empty,
After displaying a summary data in Gridview Column Footer in ASP.Net...is there a way that i can then use that summary(total information) in other parts of the application? For instance, like adding the total from the GridView footer to a different data that appears in a textbox somewhere else within the app?
So if i have a GridView like this
entry1 10 entry2 20 Total 30 <----this is the info in the footer
then add this footer total to a total from another control? How can i get this done? How do i go about using that total from the gridview in my app?
I've been trying to get the total of some columns in my GridView. I used the code in the MSDN and finally did this:
[Code]....
GVcm is the name of my gridview.I have a button that loads the gridview, but it does not show the total. I don't know if I have to call this method inside the ButtonClick Event, I'm still a noob with c# and asp.net.Other things that maybe you should know, I'm not using template fields, I don't know if that is the problem I'm using normal bounfields.
If I want to add the value of a GridView footer to say, the values in 3 textbox, and then put the summed up value in a 4th textbox called txtSum...how do i go about getting this done? Are there any examples out there that I can take a look at?
So to further elaborate on the task I need to complete...the textboxes do not reside within the GridView. I want to take the total within the footer of the GridView and add it to values that are within textboxes which are located in other locations of the page, then displaying the result in another textBox that is also located somewhere else on the page. Meaning, there are 5 different controls located at several locations on the page which are involved.
