I have a problem with MDI forms and their location. I have a container form within which I open several child forms. Also note that in the container form I have a ToolStrip at the top and it is also docked to the top. In each of the child forms I have set the following properties. I have set them at design time as well but it wasn't working for some reason so I put them in the form_load event as well.[code]...
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I've got three forms, one is a search form where you use textboxes to filter the datagridview to find the Client you wish to work on.The second form is basic data entry, their personal details, assets, liabilities, etc is entered on this form.The third form calculates all sorts of reports about the particular client.I filter the binding sources each time to get the appropriate clients data on the form when the particular client is chosen in the first form.When I go to print the word document I create at the button.click event, it comes up with an error saying "Conversion from string "" to type 'Integer' is not valid. I've checked countless times, tabbed in and out of the textbox, named ClientIDTextbox, but it still wont accept that there is a value in that textbox - the error is appearing on the line where I use the textbox to query data from the database using the ID in the textbox.The third form holds the print button, and the second form holds the ClientIDTextbox which is causing this error.
I'm about to try querying the binding source, instead of applying a filter, using ClientBindingSource.DataSource = dt where dt is a datatable. I'll let you know how this goes! But in the meantime, is it because I've filtered the binding source multiple times across forms that the error is appearing?
I can have all the projects existing in the same solution, and it builds fine. I can have a reference added to the project that I want to show a form from and still builds fine, every time I do something like this: Dim form_to_show as new Project2.Form1 form_to_show.show() It appears to corrupt the RESX file and stops compiling...it's really getting anoying..
View 7 RepliesI have a question that I hope to find a much more simpler solution to.I have two forms in my program which are named Main and Second. The Second form has several textboxs, buttons (some disabled) and comboboxes. When the Second form is opened via the Main form on the very first instance, everything works fine.
However, if I re-open the Second form after previously closing it, the disabled buttons are no longer disabled and the text controls and comboboxes show the previous values entered from the first instance which I do not want. How can I ensure that the Second form will be opened "clean" every time.
Currently I have to add instances to the onload event to do this to ensure that the form is cleared on the second instance.textbox1.text = ""textbox2.text = ""textbox3.text = ""button1.enabled = False
Add a new report to a windows forms project. Now add the table data region from the tools. If you don't already have a strongly typed dataset displayed in the data sources view, get that ready. Now do the tried and true easy-to-use trick of dragging a field from data sources onto the table's details row.
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I have been working on a quite complex multiform solution.All of a sudden the start up form (in fact any form I designate to start up) loads, displays and operates fine.
But when I try and show a form using showdialog the form displays behind the original form and I can�t set focus to the ide to close it down. I have to use task manager or alt f4 while the form has the focus.
Calling different forms from this one gives the same result but other forms work fine. I don�t want to redo this form as Ive done a lot of work onit.The only thing I can think of that whist I was changing the startup form in the project propertied page (file>project>properties) I unchecked the �Enable applications framework checkbox.
In a windows forms project, I have several combo boxes. The first combo box contains a list of objects. Those objects then have several lists which are used as the datasource's for the successive combo boxes, depending on which item is chosen in the first.
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I do not have access to the DLLs currently in production on a new project I am taking over. The source code is accessable but I want a copy of the original DLLs that were compiled and implemented in production via GAC. When I explore 'C:WINDOWSassembly' the DLLs are properly registered there as expected. I understand the GAC store the DLLs somewhere. where so I can get copies of them. The OS of the machine is Windows 2008 Enterprise.
View 2 RepliesI want to learn more about API codes, but I don't know how to get started. The thing I want to accomplish today is:basically I want to be able to locate a certain text box anywhere on my computer, and then I want to be able to write something to it. For example here on Firefox, you see the navigation toolbar. I want my program to find the name for that window, and then to type for example ("www.vbforums.net") automatically.
View 12 RepliesI am trying to extract a filename from a route.the example string is: "c:/windows/example.cpp"..I need to be able to somehow extract "example.cpp" where "example.cpp" could be any word with any extension. The rest of the route is unecesary...
View 1 RepliesI am trying to make a program which outputs an Invoice Number, which consists of the first 3 letters of a person's first name and the last 3 digits of their zip code. The user enter their first and last name, then enters their city, state, and zip such as:
Name: Billy Jones
City, State, Zip: Chicago, Illinois 42349
Therefore, the invoice would look like:
Invoice: Bil349
I can get the first 3 letters of the first name fine using the substring function, but I have been stumped on how to get past all of the text to get the last 3 digits of the zip code entered.
with the below codings how can i locate the image in the browser at the runtime
using System;
using System.Collections.Generic;
using System.ComponentModel;
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I can get a user to locate and size a PictureBox by using the values from TrackBars but is there a way in which a user can do the same by dragging using the mouse?
View 3 Replies1.) I have extended the Tree View Control into a user Control with the following code to include a key value and a value, like it was in VB 6 and .Net 1.0, and it allows me to read the key of a created (extended) Tree Node, but once I insert the node into the extended tree view control, it will not let me referece the key property of the node in the context of a nodes.find.
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I get this error when I try to connect to my database. I used the same string provided in the database explorer "Connection String"
I do not have a password on the database.
This is a local database if that makes a difference
Let me say that I have 'f' as a file/folder path.
Dim f As String = C:UsersTom BluewaterMusic
Dim d As String = Path.GetDirectoryName(f)
Is it possible to locate f within its parent directory (d) as shown in the picture below? I know that you can open its parent directory like the following.
Process.Start("explorer.exe", Path.GetDirectoryName(f))
And that's not exactly what I want. In this case, the Music folder won't be selected. I could search this place for a clue. But there was no hit. It seems that the search function doesn't always work here.
I'm very new to VB, so I was in the very first tutorial, it has me play a sound file. So I put that in, ran it, and it came back with an error saying "system cannot find this file." I guess I'm not terribly surprised, since the file they gave has no C: or anything like that. What I want to do now is play my very own sound file, but I don't want to go through the whole C:Documents and Settings... thing, so is there a way I can put my own sound file in the project directory and say something like %ProjectDir%/sounds/mysound.wav?
View 13 Repliesi want to locate specific coloured pixel on whole screen (if i set it to red then it should point cursor on the first red pixel that was found on screen)i managed to get cursor coordinates and pixel color of place where cursor is pointing, but i cant figure this out.
View 5 RepliesWhen I attempt to add a Service-based Database in VS2010, when starting a new project in VS2010, I receive the following error immediately after clicking "Add" when the Service-based Database is selected.A network-related or instance-specific error occured while establishing a connection to SQL Server. The server was not found or is not accesible. Verify that the instance name is correct and that SQL Server name is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified.)I've googled this problem and found this topic (url...), which wasn't able to help me. I'm still finding additional topics to troubleshoot with as well..
View 1 RepliesI'm writing a VB.Net WinForms application that has multiple data girds on any given form. On one such form, the data grids are loaded into split containers which in turn are located on a tab control. The load method for each data grid is threaded so that an animated "Loading" form can be shown. I would like to position the new loading form (which is smaller than the grid) on top of, and preferably in the center of, the grid that is loading. Whats the easiest way to find the grids location within the main form so that I can adjust the loading forms location?
View 1 RepliesI am attempting to grab an attribute from an XML file and place it in a VB Class as a string. However when i try to run the program, I get a Null Reference Exception on line 21. why I'm getting this and not the placeID (line 2 on XML code)
Private Shared roomDoc As XmlDocument
Private Shared rooms As XmlNode
Private Shared roomList As XmlNodeList
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I ve a file in my computer.......
i want to knw the locetion of my file in the disk drive.....
I am loading a KJV.rtf file at program startup into RichTextBoxDisplay. When I want to select, lets say, Matthew Chapter 1, I want the program to take me to Matthew Chapter 1. I know I could just load a seperate file into the rtbDisplay, but do you know how many chapters and books are in the Bible..
View 2 RepliesA network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) error: 26 - Error Locating Server/Instance Specified.
This error is doing my head in.I have a client running Windows XP SP3 logged into a domain. It is running MS VB 2010 Express to access the server.I have a Server called dataserver3 which from the client, I can do a start, run "\Dataserver3" and it comes up and yes I can browse to the Test.mdf file, which is a new database that was created using MS SQL Server 2008 R2 Standard edition.
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Well I've been looking around on Google and experimenting with code but nothing seems to work. The only things I can find are hundreds and hundreds of lines long - there surely must be an easier way?
View 4 RepliesHow should I correctly use CancelEventAgrs/CancelEventHandler?Does checking e.Cancel will return always the "right" result, even if the event eventually could consume some time?
Class Foo
Public Event Deleting As System.ComponentModel.CancelEventHandler
Private myObjectsToDelete As List(Of Object)
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I don't have access to VB.NET right now so I can't test this value:Dim lst As New List(Of String)(cookieValue.Split("$"c))i got this from another question , but was wondering if A. The list will populate correctly and B. What does the c represent?
View 2 RepliesIm struggling with gettings the values from the correct strings.txt in my resource files in my in folder when switching languages. I have a [URL] (for English) and a domain.nl (for Dutch). It however doesnt seem to matter which domain I use and how I set the currentUICulture, the language shown to the user is always the same!
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I'm trying to read a number from a user imput (string) like:
'where "." is grouping separator and "," is the decimal character
dim strUserInput as string = "172.500,00"
dim ret as double
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How can I correctly use cultureInfo to return 172,500.00 (or 172500,00 or just 172500) to a double var?
I'm having a problem over here; I'm developing a DirectX 9 application, and for some reason, I can't figure the way to close the application completely. This has never happened to me, to be honest. I am using Application.Exit(), which doesn't seem to do anything - it just closes the form, but the program is still running. I have also tried End, but it throws a run-time error I can't seem to figure out.
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