Asp.net - Pass Two Parameter To Event Handler
Jun 13, 2011
i struggling to pass two parameter to an event handler basically when the page is load it dynamically create some control lable, textfield, and linkbutton when i click on the link button it fire an event handler, here is my problem i want to pass first the Product ID and quantity, the product id is fetch from the database passit thorugh an object where as the quantity it enter by the user first part of the code it connect to database loop through and display all record on the page dynamcally
[Code]....
View 2 Replies
ADVERTISEMENT
Jul 16, 2011
How can i add one more parameter in System Events for ex : I want to add a parameter in Button Click Event.
View 5 Replies
Nov 1, 2008
I have a function that creates a button and textbox on my form dynamically. That all works fine, but now I need to pass values to my click event.[code]...
View 4 Replies
Nov 20, 2009
I have a context menu which is shown over a DataGridView as follows below. The Context menu is shown if the mouse up occurs over the second column of the DataGridView. I also have a bunch of event handlers set up for each item in the context menu. I now want to pass the location of the cell in the datagridview to the event handlers.Do I have to pass the NewPoint() to a public variable and then translate that into a cell location within the event handler?
Private Sub DataGridView14_MouseUp(ByVal sender As Object, ByVal e As MouseEventArgs) Handles DataGridView14.MouseUp
Dim hitTestInfo As DataGridView.HitTestInfo
[code].....
View 8 Replies
Nov 9, 2010
The reason why I need to do this is because I have a sequence of two lines of code that is littered all over my program, where I dynamically remove the handler to an event, then set the handler again. I'm doing this for several different events and event handlers, so I've decided to write a function that does this. [code]...
View 3 Replies
Apr 18, 2011
The event handlers in my parent class are never called though the events are raised in the child class.
The Code:
Public Class childForm
Public Event checkboxchangedEvent(ByVal checkbox1 As Boolean, ByVal checkbox2 As Boolean)
Private Sub checkboxchanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged, CheckBox2.CheckedChanged
[code]....
View 2 Replies
Aug 27, 2011
How do I get a Event Handler to fire from within a nother Event Handler?
View 6 Replies
Mar 21, 2012
remove an event handler from within the event handler?
I have a class that gets data from a hand scanner. When the scan is complete and the data is validated, the class fires a custom "ScanComplete" event and returns the data in a custom EventArgs.
In the calling program, I'm creating an instance of the scanning class and adding a handler for the "ScanComplete" event. In the event handler I get the data that was scanned and then remove the handler.
It seems to be working but it feels wrong to remove the handler while I'm running inside the handler. Will this cause a problem?
View 1 Replies
Nov 27, 2010
I'm trying to complete this airline reservation application, but having a problem in this part of the question:Creat an event handler for the FlightBindingSource's PositionChanged event: select FlightBindingSource in the class Name combobox then select position changed in method name combobox to creat the FlightBindingSource's PositionChanged event handler. Write a code to access the currently displayed flight object and pass its flightNumber to method DisplayPassengers as a decimal.This Is my code so far:
HTML
Public Class AirlineReservationForm
Private database As New ReservationsDataClassesDataContext()
Private Sub FillAll()[code].....
View 13 Replies
Oct 20, 2009
Below I create an array of labels. I would like to add an click event to my labels. Can someone point me in a direction?
[Code]...
View 12 Replies
Sep 24, 2010
When I utilize AddHandler in VB to add my own method to the Click event :
AddHandler Button.Click, AddressOf myButton_Click
I see that my code executes last - after other event handlers for the Button_Click event. Is there a way to insert my event handler in front of other events so that it executes first?
View 3 Replies
Dec 9, 2009
I have a statement:
dat.XoaNhanVien(Me.dtgcapnhatthongtin.CurrentRow.Cells(1).Value, message)
That is a function for deleting info. Now I want to create other function and get above function to parameter. I mean:
Public Function func(Byval func as " What type can be ?")
View 13 Replies
Oct 7, 2010
I am currently still learning to use VB.Net feature. Currently I am trying to execute a .exe file where there will be passing parameters to run the script. E.g. this how it works on the command prompt line:
C:Documents and Settingsproject1>textfile.exe file1.txt file2.txt file3.txt file4.txt
Above line will be able to run the textfile.exe script.
I am using VB .Net to create a User Interface where user will be able to use the 'OPEN CLICK' button to choose the files (which will display on a textbox) and click on a 'START' button to run the program. I managed to find a code - process.start() feature, however it cant seem to work..
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim MyProg As String
Dim executable As String
executable = "C:Documents and Settingsproject1 extfile.exe"
MyProg = TextBox1.Text
Process.Start(x, MyProg)
View 4 Replies
Sep 10, 2011
I have various shape objects, and I want each unique shape to implement a saveToDB method that simply calls a DB object that implements a Save method with an object as its input paramter. This DB.Save method will be a long case function that implements the proper SQL commands based on the type of attributes possessed by the input parameter object.how do I implement the SaveToDB method in my Shape class? Is it something like this:
Function Shape.SaveToDB
DB.Save(Me)
End Function
The goal here is to let each shape save itself without it knowing anything about database operations; I want to isolate db-specific information in my intermediary DB object, so the DB object will have to figure out what type of object wants to be saved into the SQL database and then execute whatever SQL instructions are needed. And then if I override the SaveToDB method in each shape subclass, I can avoid the case statement entirely, replacing it with a series of unique methods such as db.SaveCircle (ob), db.SaveSquare (ob), etc., sincle the caller already knows what it is.
View 4 Replies
Apr 22, 2010
Is it possible to pass a DataRow as a parameter to a sub?The following example will (hopefully) make clear what I want to do.
Code:
myDataAdapter.Fill(myDataSet)
For Each myDataRow In myDataSet.Tables.Item(0).Rows
MySub(myDataRow)
Next
And the sub:
Code:
Private Sub MySub(ByVal drData As DataRow)
End Sub
I get an error at design time: Error 2 Expression does not produce a value.
View 3 Replies
Jan 27, 2010
I have the following function:[code]I need to know if it's possible for a function to take a parameter as a type of field?
View 3 Replies
Feb 26, 2009
I am trying to load a combo box based on a selection of data from another combo box. I am not sure how I would pass the value to the object. My thought is I am loading all the table data onto my object and then I would run the query on the object. However I am at loss as to how I would go about doing that.
Private Sub cboOrder_SelectedIndexChanged(ByVal sender As System.Object, ByVal e AsSystem.EventArgs) Handles cboOrder.SelectedIndexChanged
Dim selecteditem As String
[Code]....
View 4 Replies
Feb 10, 2009
how to use a button to pass a SQL parameter "ContactID" to the next page to allow the SQL to execute the Select Query. From what I've found here is what the code behind for the button looks like.
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim ContactID As String
ContactID = Request.QueryString("id")
[code]....
Here is the error I'm getting back. What have I done wrong?Compiler Error Message: BC30506: Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
View 2 Replies
Apr 18, 2010
I have a mail webform where I have to show the user only (-1) one day behind messages, so how do pass (yesterday)date as parameter and retrieve the only records of one day back ?This query is for 'ALL' messages, but I need to filter (yesterday) one day back messages and add a hyperlink or add in a dropdown ?
select MSG_SRNO,MSG_SUBJECT,MSG_ID,MSG_CHKD,
DOF_SENT,DOF_SEEN from MESSAGES_MAILBOX where USER=1234
View 2 Replies
Apr 11, 2012
I currently have a page that is populated using a filter, which passes the parameters of the filter via URL.
I'd like to catch those parameters and give the user the opportunity to return to the page with the same filter applied to their view. Essentially, it's a back button. AKA: pass the parameters back into the URL so it repopulates the page.
View 1 Replies
Jul 16, 2010
I'm new to VB.Net. I'm using a library call setInstance(ByVal instance As UInteger) in my VB.Net code. The parameter I need to pass is an Integer. Is there anything I need to do to convert the integer parameter to an unsigned integer? The number is garunteed to be positive and less than 10.
View 3 Replies
Mar 23, 2010
Can I pass a form as a parameter in a sub like public Sub GetData(Byval Frm as form) and access its controls?I have few forms (you can say: FrmAccounting, FrmEngineering, FrmIT) with almost the same controls in each of them (txtEmployeeID, txtEmployeeName, optMale, optFemale etc), where no two forms are open at same time, and each of those forms have a Button which opens a new Form (you can say FrmCollectData) now I want to fetch data in FrmCollectData depending on which form it was opened from.. like if user was on FrmEngineering and it clicks button to open FrmCollectData.. form collectData fetches data from FrmEngineering Controls and if user was on FrmAccounting and it opens FrmCollectData, form Collectdata fetches data from FrmAccounting..
earlier, in VB6.. In one of the Sub written in frmCollectData I checked which form is opened by setting flags in each of forms (frmEngineering, frmAccounting etc) and then I passed the same form in a sub which writes data in frmCollectData controls.. but am not able to do the same in VB.NET.
View 5 Replies
Jun 30, 2011
Just asking for personal preferences, pros,cons on the following situation. I have a class(classA) that has some shared members in it. I have a procedure in a form that needs to execute a function in a separate class(classB). This function requires some of the shared member values from classA. I can either pass these values as parameters from the form to classB, or in classB I can just access them directly by referencing classA. As a general rule I've tended to try to use parameters to pass all the information a function needs but it starts to seem a little unwieldly when passing several parameters to multiple procedures.
View 9 Replies
Dec 7, 2010
I would like to pass array to function as parameter. Here is an example for variable that is not array:
[Code]...
View 5 Replies
May 27, 2009
i am designing an application in which contents of an excel file are displayed in the ListBox. i have created a class which contains methods for doing this. Statement used for function call is:
oSheet = obj.displayColumns(oWB,
Me.lbColumnNames)
[Code].....
line where i am getting error is underlined. Is it possible to send controls as a parameter ?
View 5 Replies
Dec 3, 2010
I am using a function which is calling a crystal report as [code]...
View 1 Replies
Jan 2, 2012
I want to create a Procedure that its parameter is also a procedure. I created some procedures to be used as parameters below:
Private Sub Jump(xStr as string)
Msgbox xStr & " is jumping."
End Sub
[code]....
this procedure should call the procedure above:
Private Sub ExecuteProcedure(?, StringParameter) '- i do not know what to put in there
? ' - name of the procedure with parameter
End Sub
usage:
ExecuteProcedure(Jump, "StringName")
ExecuteProcedure(Run, "StringName")
View 1 Replies
Mar 2, 2012
From a button located to a new form i am trying to open another form using
Manage_groups.ShowDialog()
That works fine, but now I need to pass a parameter in order to read it on the new form but
Manage_groups.ShowDialog(thisbutton.Text) it's giving me error
Unable to cast object of type 'System.String' to type 'System.Windows.Forms.IWin32Window'.
View 3 Replies
Jun 22, 2010
this is my coding when i run this coding for display the content in textboxes from the database by click event in datagrid. "Procedure or Function 'sp_developer_display' expects parameter '@developerid', which was not supplied."this error will display my sp in sql express is ALTER PROCEDURE dbo.sp_developer_display(
[Code]...
View 2 Replies
Jul 31, 2011
I need to write a long-running process with a While/End While loop.
To avoid freezing the UI, I added a BackgroundWorker object on the form.
Next, I needed to update the UI, but found that the thread cannot do this. Instead, the thread must call ReportProgress() to trigger the ProgressChanged() event.
However, I need to pass the text from the exception (ex.Message) to the event, but didn't find an example on how to do this. I need that text message to update the form's title bar.
Here's the code:
Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
While (True)
[Code]....
View 1 Replies
