I would like to get the index of the current row at the PreRender event.
Protected Sub GridView1_PreRender(sender As Object, e As System.EventArgs) Handles GridView1.PreRender
Dim idx as integer =...
End Sub
Is that possible to get current Enumerator (...or iterator? Don't know which tern is the correct one) in a LINQ query ? For example, I try to create a XML output (via LINQ to XML) of all currently loaded assemblies. [code] is it possible to somehow get current "index" (counter?) from LINQ's Selects? I would like to use it in XML. [code]
View 1 RepliesI have a datagridview having 3 columns (qty,scraft factor,actuall qty). What I want is if the user encode 50 in qty and 2 in scraf factor, actuall qty will automatically computed based on qty multiply by 2. I was using keyup event. Now I am using endedit to get the current value of the current row and column, now the problem is if the amount to be encoded is more than one digit it will not accept because of endedit. What event do I have to used? or any solution with this scenario.
[Code]...
Using For Each, can I get the current position (without an incrementing int)?[code]....
View 6 Repliesim using for each row in ...
next
just asking, how will i know the current row index?
I am trying to figure out how I can get the Index of the Current Object in Object that Implements IEnumerable / IEnumerator. I am not real familiar with the IEnumerator / IEnumerable interfaces so a coe example would be helpful. I looked here [URL] But I am lost. I see something on GetHashCode for the Current Object but have no idea - as I am not familiar with hashcodes either.
View 4 RepliesIn my gridview I have fields for inserting a new record in the footer.In my objectdatasource selecting event if no records came back I bind a single mock row to force the footer to show so they can still add records. Since the row does not contain real data I hide the row.
...
If result.ItemCount = 0 Then
result = mockRow
AddHandler mygridview.PreRender, AddressOf HideRow
[code]....
This works fine. However, I'd like to condense it like this:
...
If result.ItemCount = 0 Then
result = mockRow
AddHandler mygridview.PreRender, Function() mygridview.Rows(0).Visible = False
[code]....
This compiles fine, but the row doesn't get hidden. why my anonymous function isn't getting hit?
i have used this code.and it shows an error: Dim row As GridViewRow = CType(CType(e.CommandSource, Control).NamingContainer, GridViewRow)
The error is as folows:
An exception of type 'System.InvalidCastException' occurred in FFK.DLL but was not handled in user code
Additional information: Unable to cast object of type 'System.Web.UI.WebControls.ContentPlaceHolder' to type 'System.Web.UI.WebControls.GridViewRow'.
I am using a gridview that has alternating row colors and I am adding an attribute for "onmouseover" and "on mouseout". What I want to do is grab the current color of the row first before mouseover to store it for the onmouseout color.[code]...
View 2 Repliesi have to modify an asp.net application. The app consists of an huge gridview with lots of javascript, controls and cell modification (color cell etc.) in it. Now i have to modify the gridview to add some more colums. Lot of code is based on identifying a cell based on its index e.g. row.Cells(1). Is there way to optimize this behaivor? I dont like the thought to add a colum in the middel and then increment all indeces to match the new positions.
View 1 RepliesI would like to format a gridview based on comparing the current row value (column 2) with the previous row value. So if they are the same the background color would be that same, say green. If they are not the same the background color would be red. For example: [Code]
View 3 RepliesWhen I click the "Update" button in the gridview, it fire the RowUpdating event, but it returns a error "Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index"
The following is the vb code:
Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs)
If e.RowIndex >= 0 Then
[Code].....
I have a gridview with a dropdown list that was created programmatcially. I want to have access to the selected value and to that row's Id. I have the dropdownlist created in *Gridview_RowDataBound* and I am able to use the text in the cell but my addHandler is never fired. Where do I give it the Add handler. I believe I can assign it the addhandler in RowCreated but how would I be able to set up the add handler if the button is created in rowdatabound?
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It fits best in Rowdata bound because my dropdownlist items don't duplicate but I need to be able to use the addhandler I created.
When I right click on ultra grid view or may be grid view. I want to display different contextmenu strip for different columns. But when I right click I get index of column which I selected not which I right clicked.
Code is as follows:
Private Sub DataGridView1_MouseDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles DataGridView1.MouseDown
If e.Button() = Windows.Forms.MouseButtons.Right Then
MessageBox.Show(DataGridView1.SelectedCells(0).ColumnIndex.ToString())
End If
End Sub
how to print in a current row in Gridview? Am using Crystal report, ms access 2007 and Vb.net 2008.
This is for receipt matters. To be able to print a receipt after a transaction is made. To be able to print a selected row in a data grid for a back up or copy of receipt.
i have problem for the drop down list in the grid view, it not fire the select index changed. I bind the data for the drop down list when the row databound. But when i select the data, it not fire the select index changed. Another drop down list which hard code the item list fired the select index changed. Below is the code behind and the front end code.
<ItemTemplate>
<asp:DropDownList ID="ddlItem" runat="server" Width="80%" AutoPostBack="true" OnSelectedIndexChanged="ddlPrice_SelectedIndexChanged"></asp:DropDownList>
</ItemTemplate>
[Code]....
I am having a problem using ADO 2.8 and SQL Server 2000.Im using the SQLOLEDB Provider and when Im trying to set the Index by using the code below i receive the ffg error...Error 3251 : Current Provider does not support the necessary interface for Index functionality..I have to use SQL Server as our Access databases are quite large...Does the index and seek function even work with ADO and SQL Server 2000?...I am migrating from DAO to ADO to use SQL Server and Im trying not to change the existing code so I need to use the Index and Seek functionality as it has been used everywhere...There are no links between any tables so I am accessing the table directly.
Dim Db as new ADODB.Connection
Dim rs as new ADODB.Recordset
Db.Provider = "SQLOLEDB.1"
[code]....
i am getting a syntax error at drr(5) which 5 is the column i want to base the color change on. this method works when i am using a dataset
Dim Land As String = "Land"
Dim Air As String = "Air"
Dim Cruise As String = "Cruise"
[Code].....
I created a project in VB.Net 2008. i use a code to Add,Update and Delete record. It works fine. The problem is: How to get current records informations when i click in gridview or listview value.
[Code]...
i m using this code but it gives beep on every press event i don't want this beep sound how can i?
[Code]...
Here is my code for programming a program that reads from a file called RESORT.TXT
Containing the text:
Barb Allen
604 777 1234
[code].....
I have a datagridview which I am populating of a database, scrollbars are disabled to allow for autoresize
I created a Scroll Event that causes me some issues:
1. I can scroll down only
2. To move from one row to the next I need to rotate the mouse-wheel up in between two rows - as if the row index isn't being updated
3. The procedure results in an error : Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
Public Sub grdScroll(ByVal sender As Object, ByVal e As ScrollEventArgs)
Dim RowIndex As Integer = grdAccountTypes.CurrentRow.Index + e.NewValue
' grdAccountTypes.CurrentRow.Index = grdAccountTypes.CurrentRow.Index + e.NewValue
grdAccountTypes(0, RowIndex).Selected = True
[Code] .....
In a list of timers, how do I determine the index of the item that elapsed without having to iterate the collection as shown below (e.g. can I pass a paramater to OnTimedEvent, or can the collection raise an event to say which item fired???). It's the individual timer index that I need as I'm using it to refer to something else.
(I wont know how many items I'll have in the list in advance so I can't create an individual event handler for each timer - I don't think I should even if I did).
Public Class Form1
Private _timers As New List(Of System.Timers.Timer)
Private Sub Form3_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code]....
I just want to know if there any equivalent event (ADO. NET VS 2008) event as in MS ACCESS Form's OnCurrent Event.The reason is I like to make some calculations based on some data bound controls with current datarow data when user clicked a row in DataGridView (or by using bindingNavigator). I've tried with DatagridView's RowEnter event. But some Data bound controls are not yet reflect the data of current datarow when that evet was fired.
View 2 RepliesI have a list of objects, each with several events. I can add an eventhandler to each object, so I can catch each item's events. But I would also like to know the sender's index in the list (ie, was this object the 3rd, 5th, etc, item in the list?) I'm guessing the object doesn't "know" its position.I could give each object an index number property when it is created and added to the list, so that information could be passed. However, I would have to reindex every item everytime I use remove, insert, etc, methods.
View 4 RepliesI have a processing in a do loop. In variois points within the loop I check if the variable "bCancel" is true. If so then I exit the loop and terminate the treatment. When I click the "Cancel" button, I set the variable "bCancel" to true. Basic stuff, but I would like to know how the click event is ran while my current thread is busy looping? I've found a reference to a "Gui thread" on the net but Its not very clear is this thread in inside windows or the .NET frameworks?
View 7 RepliesI am trying to execute the following line of code within the DoWork event of a BackgroundWorker object: [code]
View 1 RepliesI have a combo box column in vb.net datagridview . i want to perform some validation like to put some values in another text column of Grid on selectionindexchanged event of a combo box in datagridview. but unable to do so.
View 2 RepliesI have a parent page and child page, both aspx. All is working, but now I would like to close child page, if user leaves child popup page and goes back to parent page and clicks on something else like page index of Gridview. I CANNOT close popup child page if user goes to another app, or some other location, I only want to close if something on parent page is changed.
I have the PageIndexChange Event set up for other purposes, I would just like to add some functionality, perhaps a script manager to close the child popup page if the Gridview index is changed, java or another way which ever works best.I think I might also need to check if the child page is even open.
[Code]...
How can I do some code when the user changes what line the caret is on? So something like:
sub textbox1_lineindexchanged (byval ....) Handles Textbox1.Lineindexchanged
'do code based on the current line
end sub
I am using a richtextbox, just I always used it so I just call it a textbox.