A] Is there any way of stopping a user from entering text or changing text in a textbox without disabling it or
B] Is there a way of changing the texboxes back and fore color whilst it is disabled?
How do I stop the user from typing into a combo box and only allow them choose from the options available?
View 2 RepliesI have a data-bound combobox that pulls values from a BindingList(of T). Combobox loads fine, correct values are displayed (I'm not using SelectedItem or SelectedValue). I'm using properties and connecting the data to the control via a bindingsource.
What I want is if the user types text into the combobox, I want the data from the bound table to change to that new text, i.e. edit the bound data directly.
Easy as pie to do with a textbox, but can't seem to get a combobox to work this way.
I was trying to use the validated event of the combobox to write the data to the datasource, but it doesn't fire when I press enter. Is that the way to do it? Can I not link the data to the combobox directly?
On the main form of my application, I have a Rich Text Box which is where the user will be entering information. The text is black. then, i have a button which calls the dialogue "Notes" A dialogue appears, with a rich text box. the user should then be able to enter text into the box, click "OK", and the text entered into the Notes dialogue be inserted to the rich text box on the main form -- with the font colour "Red". The rest of the text in the main rich text box on the main form should remain black.
View 2 RepliesI am having a problem with a entering sections of text into the same textbox without the other section of text disapearing. In other words, I have several buttons with strings attached to them. When the user presses one of the buttons the string does enter into the textbox. However, when the users presses another button the string from the first button disapears while the second string enters the textbox.
For example: The following code is what I have:
button nine_click
tbxResultSource.Text = CStr(9)
'button plus_click
tbxResultSource.Text = CStr("+")
I have a program with several textboxes - some of the textboxes contain predetermined text that needs to be appended to later by the user.For example:Textbox1 contain the start of a case number as this is the same for every case number (EG: CA0000).When a user is pressing tab to cycle through the text boxes and gets to textbox1 it highlights CA0000 and the user can accidentally erase that when he types if not paying attention.Is there a way so that when the focus turns to Textbox1 it automatically sets the cursor at the end of any text in that box?
View 6 Repliesif a message received at once is bigger then 1 line then it just puts them together in a textbox.all lines end with > and start with a time like 00:00:00..how can i still make newlines so that instead of..[code]
View 4 RepliesI have a windows application written in VB.Net 2008, framework 3.5. This app is running on 2 remote desktop servers. I have one user who receives error, This operation has been canceled due to restrictions in effect on this computer. when entering in a text box. When he uses the application on Server 1 he does not receive the error. It only happens to this 1 user on one server.
View 10 RepliesMy aim is to insert commands in to a console such as command prompt (except it isn't command prompt its actually a console engine for a game) and the commands will have shortcut buttons aswell which I can do my self, not a problem. My actual problem how ever is that I dont know how my vb form would recognise the process it needs to type in and how it would even find the text box to auto type the pre configured commands which I would have configured inside my form.
View 2 RepliesI want to make it so I have a form and a button and a web browser. The web browser will automatically load to a website that has boxes to fill in. In google chrome when i right click on the text box i can find the element or whatever its called. I am just wondering how I can make it so when I press the button it will change the text of the textbox on the website to whatever I want. Also how to make it press a button on a web browser as well.
View 11 RepliesI am looking for a code exmple. I have a data combobox and I want the user to be able to search it by changing the text property.
View 3 RepliesI want to change some text inside a textbox when a checkbox is checked. I tried many things, but none seems to work. I need that, when checkbox gets checked, the textbox value gets deleted from backwars until a dot. Then, place another predefined text immediately after this dot.
[Code]...
I am new to Visual Basic 2010, but I have been trying to make a line reader with an imported text document into a RichTextBox through an internet source.
I want the RichTextBox's line zero (the first line) to really be line one, but without changing the text in the TextBox to show the change. In other words, I want that change to happen in the background of the program.
I have tried... taking the text from one TextBox and putting it into another, while subtracting an integer value of onean attempt to use a timer to copy the text from one TextBox to another to read the line properly.
I have tried a couple of other things too, but most of them were much more complicated and I could not really explain what each thing did.[code]...
I have lines in my text file like this:
x y
x Y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
Lets say I have 20 lines like this. I want to change this lines according to user input. So user will input how many lines they want to change in terms of row and column. In my program
Row=TextBox5.Text column=TextBox6.text
User must enter initial value for x and y. Let say the initial value is
x=1 y=1.
Row=2 column=5..
Now my lines should look like this.
1 1
2 1
3 1
4 1
5 1
1 2
2 2
3 2
4 2
5 2
x y
x y
x y
x y
x y
x y
x y
x y
x y
x y
Since I enter row=2 only two set of lines is change other lines remain unchange. But in my coding all the lines is changing like this:
1 1
2 1
3 1
4 1
5 1
1 2
2 2
3 2
4 2
5 2
1 3
2 3
3 3
4 3
5 3
1 4
2 4
3 4
4 4
5 5
which is wrong.
This is my code
Dim lines() As String = IO.File.ReadAllLines("C:\wirematches.txt")
Dim xValue As Decimal = Val(TextBox1.Text)
Dim yValue As Decimal = Val(TextBox2.Text)
Dim altValue As Decimal = 2.54
Dim lineTracker As Integer = 0
[Code] .....
This code working fine for changes the column. But i dont know where i should write the code for row.
I'm making a C++ code editor application using VB.NET. I'd like to change the color of the keywords as the user types it. Also I'm looking for a way to highlight some lines of the code.
Is there a way to change the forecolor and backcolour of a piece of text inside a textbox or a rich textbox?
I have VB.NET code that is called when the selected tab index of a tab control changes, I am trying to get the code to change the text in a text box to the URL of the web browser control that when the tab changes. I have the code below, however it gives errors:
AddressTextBox.Text = CType(TabControl.SelectedTab.Controls.Item(0), WebBrowser).Url.ToString
When a SelectedIndex in a ListBox is changed I would like a textbox below the listbox that gives a description to be populated with the value from a description field in SQL.I have the following code so far, but I get an error that says "Must declare the scalar variable "@ReportName"
[code]...
How do I add text to a TextBox instead of changing the textbox as a whole. Also, how would I make a newline when adding to the textbox?
View 5 RepliesI cant seem to find any link or topic regarding my problem. I have 2 forms in a project, form one has labels and adjacent combobox while the other form (form 2)has textboxes with adjacent combobox. I am supposed to change the text property of the labels using textbox entry from form 2 and add/delete/change combobox contents in fom 1 using entries combobox at form 2.
View 13 Repliesi have 2 forms.in form1: i have 1 combobox in form2: i have 1 textbox and 1 button...I want to make in form2 when i enter some text in the textbox and press the button the text to be added in form1 combobox
View 2 RepliesIm using the following code to wrap html tags around text in a texbox and transfer the text to a single multiline textbox from form1 to form2.[code]My problem is that if for example textbox5 and textbox6 are empty i want the program to continue anyway.
View 6 RepliesHow can i make a textbox so like when a button is pressed how can i make the textbox select a random text and put it in its text box.
View 7 RepliesI am trying to put text of my dynamic textbox in some other textbox when user changes the selectedindex of a list.But dont know why it is giving me error's.
Private Sub UserText_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles UserText.TextChanged
If Me.ListBox1.SelectedIndex >= 0 Then
If TBnew.createdTB(Me.ListBox1.SelectedIndex) = 1 Then
[code]....
I want a text in my textbox in gray that dissapears when the user clicks in the textbox.I am not sure if that is a good enough explanaition so here is an example:You often have search boxes on websites or application.In the searchbox there often is a text like "search", "keyword", "type here".As soon as you click with your mouse inside the textbox it dissapears.I could make this in code but I was wondering if there already is a textbox property for this?
View 8 Repliesim trying to have the user press a button and a window pops up to select a file. then it reads the file and puts it in a text box. how could i do this?
View 1 RepliesLblPPG.Text = Val(TextBoxPP.Text) / (TextBoxQTY.Text)
This is the only way I know how to obtain the info I need for this equation but if generated again with no input from the textboxes I get an error. Is there anyway to bypass this if its generated a second time with no inputs?
I'm Making a Simple syntax highlighter and I'm Doing the highlighting in the text Changed event of a RTB and for obvious reasons I can't re highlight the whole document each time someone presses a key so i highlight one line each time the text changes. But this creates a Problem. If someone pastes code into the RichTextBox It only highlights the last Line. So is there a way to get if the user typed the text in with his keyboard or pasted it from the clipboard in the text Changed event?
View 6 Replies I am using a database (access) were i am not using a primary key field. I would like to prevent the user from entering records , if certain fields allready exsists.
I would like to check for 3 of the fields. When these 3 fields has been filled previously with the same data as the new data, i want to return a message.
I am looking at the fields txtWeeknumber.text & txtTopic.text & txtSubOutCome.text
Here are some of my
[Code]....
The instructions I'm following indicate that when user clicks the Add This Item menu item for a new order, the customer information should be disabled so that the state cannot be changed until the next customer.I've tried to validate that all the customer information fields are filled when user clicks Add This Item menu item. The trouble I was having was that even when you were alerted that you didn't fill one of the fields, you clicked on the message alert and then the customer fields were disabled before you could fill the empty one.
I've tried to make an if statement which checks if some are empty to alert else if they are filled then disable. This doesn't work either. I get Conversion from string "" to type 'Boolean' is not valid. I'm not advanced enough to understand this. I just know boolean means true or false or yes or no. I'm not sure the best way to handle this situation. I don't even know if locking the user out is wise since they might have wanted to correct something wrongly entered but my instructions are to validate that the fields are filled and then disable the customer information. I need to follow the instructions exactly.
This is what it looks like:
Private Sub AddThisItemToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AddThisItemToolStripMenuItem.Click
'Declare local level variables.
Dim Quantity_Decimal As Decimal
[code]....
Is there anyway to take a static stream reader, and switch it to another text file based on the user changing the file?
View 1 Replies