I have to ask a stupid question:How to pass values from my form into the controls of other form?I made textbox and button in my form1 and Label into the form2 When I click the button, I want to pass the values of the my textbox in the form1 into the labels of my form2
I am a student and totally new to vb.net
Im trying to pass a value of a date control from form1 to form2.on form 1.aspx.vb:
Public ReadOnly Property Property1() As Date
Get
Return StartDate.SelectedDate[code].....
Tried to assign the property to a string, it did not work either.
I think I'm getting hung up on syntax here. I've got 2 forms and am trying to pass a textbox value from the 1st form to the 2nd. The textbox value is an unique ID #, so it's an integer value in the database. The ID displays in the textbox just fine on the 1st form. When I try to access the value of this ID textbox in code in the 2nd form, I see that the value is empty, or equal to "". But I see a valid ID # on the 1st form. Here's the code that shows me that the textbox equals "".
[Code]...
solid rundown of how this process works using custom events &EventArgs, Im really having trouble wrapping my head around it
View 14 RepliesMy problem is that I have two forms, Form1 and Form2 ...on Form1 there is a TextBox called txtTotal (this contains the calculation of Ticket Prices, thus it's a numeric value) and on Form2 there is a TextBox called txtTotal2. All I want to do is get the same number that appears in txtTotal on Form1 to appear in txtTotal2 on Form2 .However whenever I try some of the help tips online such as using a declaring txtTotal as global or friend it dosn't work, and any other code iv tried attempts pass the textbox value as String which brings an error.
View 2 RepliesI have a very simple windows forms setup. Form1 has a progress bar and a button on it, when clicked the button opens Form2 which also has a button on it that launches Form3. On Form3 is a button which I want to use to raise an event back to Form1.To achieve this can I add an event handler on form1 that will listen for an event of the type raised in form3? Or do I have to pass references to form1 to form2 and then from form2 to form3?
View 1 RepliesTo start things up, I have a DLL called clsEmployeeModule, containing forms frmEmpInfo and frmAddEmpName. frmEmpInfo contains a textbox that when clicked displays the frmAddEmpName. Now the latter contains three textboxes (firstname, middlename and lastname) and a Save button. Once the user clicks Save, the values from the three textboxes will be concatenated and displayed as a full name back in the frmEmpInfo form.Below is the code snippet calling the frmAddEmpName:
vb
Private Sub empname_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles empname.Click If genInfo_edit = True Then call_addempname.Text = "Edit Employee Name" End If call_addempname.Show() End Sub
And here's the code snippet from the frmAddEmpName:
vb
Imports clsEmployeeModule Public Class frmAddEmpName Dim callempinfo As New clsEmployeeModule.frmEmpInfo Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click mnFname = firstname.Text
[code]....
When I debugged the program, it showed that employee_fullname was successfully populated with the concatenated values -- however, that wasn't the case for the empname textbox.
My scenerio is a form with a button, when clicked opens a form dialog. The dialog allows the user to enter a text box. I want to read the value of the text box from the main form into a variable to be used with an SQL statement. The following code is used to create a new instance of the form dialog if one does not exist:-
[Code]...
I need a nudge in the right direction. I have a user control that has the main form and it calls a secondary form to gather some additional information in some cases. I need to pass the information back from the secondary form to the primary user control form so I can validate the data and save. In the secondary form, I have the following code:
Dim myFrm as new frmOperationComments
myFrm.OperationComments = [comments from form]
myFrm.OperationDate=[Date from form]
I have tried creating two public properties on the user control and setting them, I have created two properties in the user control form called OperationComments and OperationDate. I can set both of them, but when I close or hide the form and go back to the main user control form, the values for these properties or variables are not set. How do you set the values on the main form from a calling form within a user control?
I have two forms and I am running a sql query to provide a set of variables in my first form that I need to pass to my second form. Here is the code that I have:[code]to form 2 which then shows the data retrieved from a sql query in the load event to a datagrid view.
View 19 RepliesI would like to know if it is better to pass a listbox for control to a module with SQL stored procedure or to use the List(of ) function.
example:
in the form class---
SQLModule.getPartSearch(txtGroupID.Text.Trim(), txtFirst.Text.Trim(), txtLast.Text.Trim(),
[Code].....
I have a form with 2 dropdownlists and a submit button. I want to pass the values of the lists in a URL when the list is submitted but for some reason the initial value of the ddl is getting passed. Here's my code:
[Code]...
i have a listview control on form1. I want to send the selected value to form2.
I tried couple of ways but nothing seems to work correctly.
I am trying to pass information to parent form from modal form in vb.net winforms application.
1.) I created a copy of a form and displayed it using following code.
dim f=new frmParent()
f.show()
2.) Depending on conditions a button on frmParent opens a modal child form and asks for some informations. I used following code for that:
dim f = new ChildForm()
f.showDialog()
Both code works fine. When user press saves in child form i need to close childForm and use the user types values in parent form. I know how to close the childform but not sure how to pass info from childform to parent form.
I am trying to pass values within a repeater binding them to a button and pass them from this form to another form. When I compile this it gives me an error indicating.
System.FormatException: Input string was not in a correct format.
Button within Repeater Code in form1.aspx:
<asp:Button ID="Button1" runat="server" Text="" CommandName= "TEST" CommandArgument = '<%# Eval("Parking_ID") + "," + Eval("Parking_Name") %>' />
In form1.aspx.vb Repeater_ItemCommand Function:
Protected Sub repeater1_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.RepeaterCommandEventArgs) Handles repeater1.ItemCommand
If (e.CommandName = "TEST") Then
Dim commandArgsAccept As String() = e.CommandArgument.ToString().Split(New Char() {","c})
[Code] .....
I'm upgrading a project from VB6 to VB2008.I have a routine that clears a combo box, named 'cmbDataTable' which could be on any form. I pass the form and the combo box is cleared.
[code]...
I assumed it would be the same in VB2008 but I get the error.'cmbDataTable' is not a menber of 'System.Windows.Forms.Form'I am working my way through the project, first updating the global procedures - this is one - I haven't written the calls so cmbDataTable doesn't yet exist.
I have a form with 3 tabs: one tab is for user entry and computations, a second tab shows values that will be used for computations which are read from one database (I call it settings in that the values are constants for calculations but it's not application settings in the way people think of it, to be clear) and the third displays a table from another database. The second tab has a table adapter interface for the dataset that contains values used for calculations that can be changed (to do different scenarios.) Those numbers are read from a single record in a database that has 20 fields and was read once when the data is loaded into the second tab to be displayed.
The problem I am having is that I would like to use the numbers from the second tab (the constants) in computations to be shown on the first tab. I have tried declaring the variables on the second tab as public but they are already "friends" with the form event. However, when I go to use them in calculations, it's like they don't exist.
For example, one calculation I am doing is fuel cost. The user enters miles and this is stored as a variable called mileage. To calculate the result fuelcost, I have to use two other fields that are shown in the second tab: MPG (miles per gallon) and fuelprice (the price of gas). So fuelcost = (mileage/mpg)*fuelprice. These are read from a datatable called testdata which is actually part of the project. I want to be able to use these variables throughout the program but declaring them as public isn't working.
How do I make the variables from one tab usable elsewhere in the program? The other thing I noticed is since the values of the variables are loaded into textboxes and assigned variable names by naming the textboxes, using val([variablename].text) isn't solving the problem either. For example, saying milespergallon = val(mpg.text) is not doing the trick because I am getting a message that 'text' is not an integer when I declare milespergallon.
Update Here the code that is being used:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim mileage = Int32.Parse(Miles.Text)
Dim rate = 0
Dim baserate = 0
[code]....
TabPage2 is where the variables are displayed that I want to use in TabPage1.
Private Sub TabPage2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage2.Click
End Sub
Inside a form, I would like to display a pdf file which is already available in my resources (template file "untitled"). In this pdf file, I have some fields which get their values from some texboxes in another form. My aim is, when the user triggers the button to call this form, it should insert the values inside the pdf file and display the output pdf inside the form.I have written the code to an extend but could not finish it myself after my many trials... Now here are the two things I cannot manage:I can use a directory to read the template pdf "untitled1.pdf". But my aim is to use the file inside my resources. can save the output file in a directory but this is not I want to do. I want to display the output pdf.
View 1 RepliesIm having trouble passing a value from one form back to another using a listbox... The user clicks a button in the main form to bring up an instance of another form (form2.show). In that form, the user then then selects a number 1-5 and then presses done:
[Code]...
I'm designing a form and trying to get different opacity values for different controls. How should i do it??eg. clear visible text floating over 50% opaque form.
View 6 RepliesI'm trying to change the values of some of the controls in the ASPxGridview Edit Form, however they are not changing. It seems to be resetting? How can I do this and in which event would I do this in?
View 2 RepliesI'd like to see how others might handle this scenario and perhaps provide some comments on this particular solution for handling null values. I have run into a situation where my application requires data from an ancillary source that cannot be altered/changed, which of course means dealing with poor database architecture and implementation! In this case, my app is running into errors when attempting to set some form controls (textbox) to values from a single ADO.NET DataRow. Perhaps I should be handling this when attempting to set the controls? Not sure, but here is the current way this is done:
View 7 RepliesHow can I update and get values in a Windows Forms application while moving one form to other form (like cookies)?
I need to update the values to some variable and again I am going to refer stored values and need to do some calculations.
I have used cookies in ASP.NET but I am not able to find out the same concept in .NET Windows Forms (C#).
How can these issues be resolves?
1. What determines that some controls cannot be added to the form? (I tried several, not all of them)
2. Where does the image for Column 1 About form come from?
I am trying to write general function to set the attributes of the command button and want to access this function from any forms.But I am getting error in this function.[code]
View 1 Repliesi want to when in run time i resize the form manually all the controls in the form to resize automatically so how can i do that?
View 1 RepliesI have a form containing two panels. In both panels there are two labels and textboxes. I set the 'Center In Form' property of the labels and textboxes to 'Horizontally' and 'Vertically' in design time respectively. But as the form is resizable, when the size of the form is increased or decreased at runtime the controls are no longer center aligned in the panels. How can I handle this problem (provided the main form needs to remain sizable)?
View 2 RepliesHow to increase a forms opacity without increasing the opacity of the controls in the form?
View 1 RepliesIn my home form I have a splitcontainer and few buttons. When the buttons are clicked respective forms are opened in the splitcontainer. The splitcontainer is anchored- top, left, right, bottom so that when the home form is resized the splitcontainer resizes itself automatically. The controls within the other forms are also anchored properly to resize themselves accordingly. But the problem is when i open a form in the splitcontainer, even if I resize the home form, the controls in the form within the splitcontainer aren't resizing. The reason is when the home form is resized the splitcontainer is resizing itself accordingly but the form inside the splitcontainer isn't (as forms don't have anchor or dock properties so I couldn't set them). As a result though the controls in the sub form are anchored to resize themselves yet they aren't.
View 1 Repliesi use a picture control in mdi form .. but when i load child froms then mdi form picture are also show in front of child form...
View 7 Replies