Drop Down Box And Other Stuff In ASP.NET With (VS 2008)
Apr 13, 2010
I am trying to polish up a program a program that I have converted from a Windows Form in to an ASP.NET Web Application. I have several questions:
1.) I have a drop down box where users can select their variables, but users can also enter their variables manually into various text fields. What I want is for the drop down box to show a string like "Choose Variables" when ever the user enters their variables manually. I want this to happen without having to reload the page.
2.) In the Windows Form version of this application I had a RichTextBox that populated with data (line by line) after a calculation was made. I used "AppendText" in my Windows Form, but that is not available in ASP.NET, and neither is the RichTextBox. I tried to use just a text box but that isn't working right.
Last night 3 updates automatically installed from VS 2008 on my comp KB952241, KB971091 and KB973674 Today intellisence was not working for .net - I uninstalled the updates and everything is, once again, working fine I dont know what update did it ... But I was just wondering if anyone else has experienced this - I would rather not have the updates if they stuff things up.
Oh - and before anyone asks - I tried resetting the visual studio settings
In games such as Warcraft III, you can play against players on LAN, and it can show a list of games being hosted by people on LAN. There is no central server that holds the entire list, so how does it get the list of games? And also, how would I code something that creates a game on LAN, like a bot?
I seem to have a major problem. when I add a typed dataset to my project and go back to my sql server and click on the databse I use it doesn't open. the tables and stuff just vanish. using the wizard, it creates this connectionstring:
It connects fine. but after I try opening it in sql server i get an error. It doesnt let me restore or anything. i tried restarting my pc incase the db was locked but it is still gone. now my app cant connect. Just for clarity, is user instance supposed to be set to true. and what is the purpose of it. also when the wizard asks to make a copy of the file that will be copied accross each time I run my project I select No.
1)How can I make my program get the contents of a .txt file on my website to tell the program to run or not?Here is and example of what I want:Say the file says "Running", the program would run without problems.If the file was to say "Unavailable", a pop up would appear saying "The program is currently unavailable, try again later." Then once the person clicked OK, the program would close.
2)How can I make the program get contents from a .txt file to get the latest version of the program, then if there is a newer version, there would be a pop up saying there is a newer version and they need to update. Then when they clicked OK, the program would close and it would open their default web browser or Internet Explorer to the update page.
I am quite new to the VB scene, and am still quite confused by the variety of options presented as far as choosing the correct project type.I have been coding for roughly 4 years now and consider myself still to be a beginner. My past experiences include, hmtl, C++, vba, assembly, and a few others which I'm sure currently escape me.However, VB is a whole new boat and I'm just not sure where to get started with what I want to do.I've Googled the internet, went through the MSDN, and even did some tutorials.My current dilemma is I wish to make a program that will do a the following: Allow a User to download a set of data from an embedded web page.Open an excel file Download more data from a different web page.Open another excel document..I'm sure this is probably quite simple to do (read: I hope...). However I'm just not sure where to begin as far as choosing a project type. Additionally I'd like to have it set up with buttons, where button1 reads something along the lines of "Step 1: Click Here to Go and Download Data", "Step 2: Click Here to browse to excel file", etc etc.What type of project do I chose to get the stuff done on my list?
I want a quick and easy way of sending stuff from my window forms to my remote SQL server, my remote sql server allows remote connections to my IP address. How can I do this? I also need to return a result, either true of false.
I am trying to figure out a way to include the listview's tag field when dragging one listview's subitems into another listview. I am hoping someone here has experience with this. My Listview drag code is below - the two listviews that I am dragging subitems into or from are LV1 and LV3. Also, this is being done in Visual Basic 2008 and the project is a windows application.
Im following a text that illistrates dragging and dropping OleDb controls in VB2005. As I am using VB2008 it seems these D&D controls are not their by default but I can use an imports statment . I uploaded two gifs to illistrate.Is their a way to add these controls ? It makes setting the properties easier ?Everything going OK in code except now I have to set up OleDbAdapter to SELECT, INSERT, UPDATE , DELETE ?
Dim connection1 As New OleDbConnection connection1.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:FPNWIND.MDB" Dim oledbCommand1 As New OleDbCommand
I just upgraded a project from VB 2008 to VB 2010. Before, the project did not use LINQ. I have started implementing it. So, I have updated the target framework from 2.0 to 3.5, and added a reference to System.Core, and imported the namespace System.LINQ to the entire project and also imported System.Data.LINQ into the form I'm working with (because it was not available in the list for Imported Namespaces in the references tab).
It's not throwing any errors now, but my IntelliSense is not working for LINQ stuff.
For example... I write this:
[CODE]....................
Then, if I type S. on the next line, the IntelliSense doesn't grab what it should for S (Only get Equals, GetHashCode, GetType, ReferenceEquals, and ToString, instead of the options I should get like Count, First, FirstOrDefault, etc...). If I Type S.First. then its the same thing, no IntelliSense that lists the available fields for S, just the standard options (Equals, GetHashCode, GetType, ReferenceEquals, and ToString). I should be seeing my column names in my table when I type S.FirstOrDefault.
So any ideas what is going on? When I type the code, for example, MessageBox.Show(S.FirstOrDefault.FirstName), it works perfectly. But it doesn't change the casing of the text (so it would read s.firstordefault.firstname) and no intellisense while doing it. But no errors. BTW - Everything works perfectly when creating a NEW VS 2010 application, it's just my projects upgraded from Visual Basic 2008 that have this issue.
How do I drag and drop a control (such as a GroupBox) during runtime from one location on a form to another? I simply want to move it around during runtime.
I have been given an assignment which is to program a working payroll system in Visual Basic 2008.I have done most of it but I am stuck at the arrays.I would like my system to store all the staff name that the user adds on the system into a single Array for example in EmployeeNames(50). For example if the user enters a new staff in the textbox name and confirms it by clicking on a button, I would like that staff name to be stored into my Array EmployeeNames(50).
Is it possible for a user to drag and drop a desktop shortcut onto a form (picturebox, panel etc) and launch it by clickin the (picturebox, panel etc) ?
Is there anything like STL in Visual Basic , e.g a binary tree , quick sort Do I have to implement those algorithms myself , does Microsoft provide any useful interface ?
I have an application which is using a set of three combo boxes. I have managed to populate each drop down depending on the selected value of the previous one The only problem is that, since the data is coming the database two selected values from the first combo box may have two different number of items in the database. so the second combobox should be populated with such data each time the selectedIndex_changed nethod of the first combobox is invoked
if for example, the first combo box's first item has 10 corresponding items in the second combo box and a first combo box's second item has three corresponding items in the second combo box, selecting the second item after selecting the first item will lead to second combobox showing the three items and seven empty entries trailing after the three.
What I want is to have the second combobox loaded with three items exactly when the second item in the first combo box has three items in the database
here is an example
Private Sub cboAccountGroup_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboAccountGroup.SelectedIndexChanged If mblnAccountGroupFirstLoad = True Then Exit Sub
I'm using a masked text box control. It has a property, ValidatingType, that is not available at designtime so it doesn't appear in the properties window of the IDE. The IDE has two drop-downs where you can select an object in your project on the left drop-down and see the associated members on the right drop-down.
My question is: Why, if I select my masked text box control on the left drop-down, don't I see the ValidatingType property on the right drop-down? All the events for the text box appear, why not the property members as well? Perhaps because it only shows properties that I code for an object?
I have a drop-down combobox. Is there any action that drop it down on runtime? I'd like to drop it down for the user, instead of asking him to press the "down" arrow.
I have been able to implement drag and drop successfully on my listView object if you were to drop a file on it, however I seem to be having some troubles if the user were to drag the folder onto the object. Is there a simple way to check if the user dropped a folder, and if so, list all of the files in the folder/subfolders?
I'm working on a small utility program and found that I have a need to copy the contents of listboxes, textboxes and other control from one to another.
I just started playing around with Drag and Drop but it seems lacking a bit...for instance, if I wanted to drag the contents of a listview to a text box, it doesn't look like I can do that easily if at all.
Can you use a drag and drop to copy the contents of different control types easily?I thought about using the drag and drop method for notification of the intent to copy the contents and then I would code the copying.
The idea (although I know it will be slow but that is okay for this utility) to copy the source to a textbox and then from the textbox to the target. The content won't be that large and speed is not a concern at this point.
Here is my issue if I have to do it this way.
1 - How can I use the control names to do this?
2 - How do I get the target control name?
I figured I would create a function that I would pass the source control name and the target control name and based on type, perform the appropriate method of copying the data.
I haven't figured out a way to get the target control name. I can use activecontrol.name for the source.
I am in the process of creating a dock and I was wondering if somebody would know how I can have programs be dragged and dropped into the dock with the ICON
I am trying to implement a DnD interface where the user drags a button onto a DGV & a new row would be inserted at the drop point. My first problem is how can I have the DGV rows highlight as the cursor is dragged over them? And then I need to get the row index when the mouse button is released so that I can insert a row at that point?
Is it possible to drag and drop on textbox whose enabled property is false ?i have a textbox when i will drag folder on the textbox it capture the folderlocation path but when i make textbox enabled probperty false it didn't work
i am trying to drag a picture from one picturebox to another, but when i click to drag it shows the circle with the slash mark throught it like: [URL] not-symbol.jpg where my mouse is supposed to be? i cant seem to figure it out. my code is:
I have to set a drop-down list with multi-select checkboxes. It seems to be a combination of combobox and list capacities (at least as I know them in VB6), so what's the best controller for these purposes in VS2008?
vb 2008 compared to 2003 is the ability to drag controls onto the web form and place them where I want.With 2008, the form places the control to the left and I have to tab, space, set-up tables or similar techniques to get the control exactly where i want it. Is there a way to make the web form in 2008 work like the one in 2003?Other then this one oversight, I enjoy all other aspects of vb 2008.
