I'm still playing with my program that has multiple RichTextBoxes. What I want to do is to be able to save the data in all these boxes (only about 10 characters max in each box) to a simple text file and then reload the saved data into the exact boxes they came from at a later date.
View 5 Repliesi am using visual basic 2010 and i want to open and save multiple richtextboxes text into one
file.
for ex
richtextbox1.text="Deepak"
richtextbox2.text="My Name"
but i want to save these informations in one file.
The code I came up with ALMOST works... but almost is not enough.
1.) all 3 of my richtextboxes have the same quantity of lines, always.
2.) When I scroll one of them, I want them all to scroll in unison, as if they were 1 richtextbox.
Here is the code I have that ALMOST works right....
Public LastLineNumber As Integer
Public HighestVisibleLine As Integer = 16
Public LowestVisibleLine As Integer = 0
[code]....
I have a listbox that may have text in it so when u press save i want it to save all them text to a my.setting then on form load i want it to put them back where they were.
View 4 RepliesI'm using VB 2010 Express. I'd like to ask about tree nodes - in my application, the user can change the nodes and add more. When I leave the application, I would like to return and for the new nodes to still be there. I've tried My.Settings, but I've decided there must be another way to do it in a file. For each node, I need to save the key and text, and reload it next time.
View 4 RepliesI have these files [code]...
How can I use code to put all data from these files to a new file for searching purpose?
<VB.Net 2010 + SQL Server 2008 + Linq To Sql>
Let's say I have ten rows on a data grid and I have changed data of three rows.
I am trying to save data by Linq for those three rows, but I am not sure how it is possible to save them.
I can do it by looping whole rows by checking each row for any change.
Is there any smarter way rather than looping by code, such as For Next.
I have problem when save data at ms access database (save multiple data).
VB.NET
Dim prodid As String
Dim charga As Double = 0
Dim iqty As Double = 0
Dim idisc As Double = 0
'simpan detail
For i As Integer = 0 To dg.Rows.Count - 1
[Code] .....
The field is too small to accept the amount of data you attempted to add. Try inserting or pasting less data.
In my SW there is a main form, inside this form there is a several controls (user controls), in any given time only one control is visible to the user, all others controls are: visible = false.
My question is how I execute several code lines when the control is shown again?
the only method I know is on the load event, but since the control is allready loaded I cant do that
I Have a complex Class Structure that holds a large amount of data in the form of multiple nested arrays that I want to save to a file and retrieve everytime I use my program.. How do I do this? I am using VB10 Express.
View 5 RepliesI would like to know that how am i going to validate the data inside a currency field to see whether its format is correct or not ?How am i going to reload the data when an action is canceled ? For example, when i click the cancel button, a message box will pop up and ask the user whether he/she want to cancel the action. When the user click yes, the action will be cancel and the data inside a database will automatically display inside the text boxes, as if everything is start from the beginning
View 5 RepliesI've spent several hours reading through posts trying to make a data refresh/reload work and I can't.After adding a new record to the underlying table (using MSSQL) I need the datasource for that table to show this new record. My understanding is that using BindingSource.ResetBindings(False) is supposed to fetch a ew set of records and also update any control bound to it (ie ComboBox).Neither of this is happening. The new record is not there when using the navigator. The ComboBox does not show the new values either.It seems that this would be a simple basic command in VB, alas, I can't find a way to do this cleanly.I'm using SQLSERVER 2005 and VB.NET 2005. Controls are all bound to datasources...
View 17 RepliesHow can i reload/refresh the same form again without losing the data stored along with the form?
View 1 RepliesWhen I create a new record by submitting an .aspx page the new record is not showing up. I have to navigate away from the page and back to it for the new data to show.
How do I refresh the data up reload??
I have a bit of a tricky scenario. It consists of some partial problems for which I have individually found solutions, but I couldn't find anything that makes it all work together smoothly.
-Upon selecting an item in a datagrid, a new page loads with the details regarding that entity.
-The entity represents a product that can have any amount of variants (such as a t-shirt's color or size)
-I dynamically add dropdownlists to this detail-page that represent these variants (there can be any amount of variants, and each variant can have any amount of different values, each value or combination or values from different variants representing a unique product entity)
-Upon selecting a different variant in a dropdown, a delegate is called that will change the session variable to the productId associated with the selected variant and a postback is fired that will reload the page with new data based on this productId
The problem: the postback is fired BEFORE the dropdownlist's (OnSelectedIndexChanged) delegate is called. Since this delegate defines the productId in the session, the new to-be-used productId isn't known at the time of postback.
Result: loading the correct data in the page is always delayed by one postback. Each time I change the selected index of any of the dropdowns, the page is loaded with data based on the session variable that the PREVIOUS OnSelectedIndexChanged delegate of the dropdown set.
I have a LoadData() method that sets the values of all textboxes, fields, labels etc. based on the productId stored in the current session. This method is called on Page_Load.
Private Property CurrentProduct As Product
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
LoadData()
[Code] .....
It seems that I haven't been completely clear on what does and doesn't apply to this scenario regarding Page Lifecycle.
1) My dropdownlists are added dynamically, which works fine on the first page_load.
2) The content of the dropdownlists is defined by what entity's details i'm loading on the page.
3) What entity's details I'm loading on the page is at first(not-postback) defined by the product I selected in a gridview in the previous page.
4) At postback, this entity is based on a sessionvariable containing the id of the entity.
5) This session variable is defined by what item in the dropdownlist I select.
6) This dropdownlist dissapears after postback since it's not defined on the page, but dynamically. So is the event.
So my guess would go towards some clientside script that stored the selected value before postback, but then I would be clueless on how to get that variable to the server since the logic that retrieves the entity is in the business logic layer which is far away from this page..
I need sample vb.net code to save single windows form as many page and reload the page whenever i call that page...
View 1 RepliesI am trying to save multiple text files using a save dialog.
I can save one textbox
SaveFileDialog1.ShowDialog()
Dim File As System.IO.File
Dim Write As System.IO.StreamWriter
Write = File.CreateText(SaveFileDialog1.FileName)
Write.WriteLine(TextBox1.Text)
Write.Close()
but I don't know how to save multiple textboxes and richtext boxes. Would I have to use a screenwriter for this?
modify code to insert the data to MS SQL and save changes when click save button for the second time?
View 14 RepliesI have two rich text boxes.I have to compare both the text boxes and highlight it, if any difference is there.Which is similar like compare and merge option in msword.How can i do it in vb.net(vs2005)?
View 2 RepliesHow do I combine richtextboxes? Currently, I am directly saving rich text to a RTB with ".rtf" and I would like to append the rich text information to that box from another RTB. Something like: RTB.rtf &= newrichbox.rtf do not throw any flags but also does not work. What I am ultimately trying to do is save multiple richtextboxes to a single RTF file. I was trying to do it by combining them all into one RTB and using ".savefile()" or is there a better way? Maybe appending them to the file one RTB at a time?
What I'm doing is generating a report, so I have built generic rich text templates that go into multiple RTBs that will create the form sections and I have left placeholders for the data I am adding, so I do replaces on the placeholders to insert the data. However, there are a couple dozen different possible formats for the report based on user options, so I built each section into its own RTB so I can just write out the relevant sections when it comes time to generate the file.
how to code for the save button in vb.net datagrid view by using insert into sql and update sql statements (it should be able to insert & update the data grid and save the changes) when the save button is clicked .
View 2 RepliesHow to save all the data displayed in DataGridview( 2 column, no primary key) and have a button and
View 7 RepliesI am working on desktop application. I had created number of dynamic textbox and label and I want to save that data on clicking the save button.
View 4 RepliesHow do I add tables to a RichTextBox in VB.NET 2010?
I've tried adding the tables by using RTF codes, but I can't get that to work. And there is nothing like richTextBox1.AddTable() which would make things very simple. At least, if there is, I haven't found it.
How can I make inactive textboxes / Richtextboxes autoscroll? I have Multiple richtextboxes that are constantly being appended with data automatically and at the moment only the one that is active scrolls and all the others stop when the fill up. How can i get round this?
View 3 RepliesI have code that works great for 1 richtextbox, heres the problem i have 2 richtextboxes I need to some how search either 1 textbox or the other depending on whether that particular richtextbox is active i.e. cursor in it. [code]...
View 6 RepliesI'm working on a project in vb.net 2010 that has 3 RichTextBoxes. Two of the RichTextBoxes can be loaded with text from text files. How do I take the multiple lines of text from each RichTextBox and combine them into the 3rd RichTextBox.
For example, if 2 of the RichTextBoxes contain the following lines of text:
(RichTextBox1)
Monday
Tuesday
Wednesday
(RichTextBox2)
Jan
Feb
Mar
I want the 3rd RichTextBox to show following result:
(RichTextBox3)
MondayJan
TuesdayFeb
WednesdayMar
I have 2 richtextboxes on a form and I want to link their vertical scrollbars i.e. ifrichtextbox1's scroll bar is moved then richtextbox2's scroll bar moves by the same amount.The reason for this is that both richtextboxes will contain almost identical text barring a few differences in the second richtextbox. By linking the scroll bars my hope is that the user can better compare the textboxes for any differences between them. I have looked at trying to find a scroll bar property but can not find one. Does one exist?
View 1 Repliesin my form i have 4 textboxes and i want all not to be empty while saving the data.I have put condition in save button,when user presses the save button to save data, to check all the textboxes not to be empty. My question is that, i want to focus to that particular textbox which is empty during saving the data.
For example: i have txt1,txt2,txt3,txt4 as textboxes in the form if txt1 is empty while saving, the focus should switch to txt1 rather user himself have to go there.
I have some text in an .rtf file which uses a non-English character-set (it's chinese).When I open this in Wordpad or Word I see just the chinese characters.When my app opens the .rtf file and reads the file's contents and puts it into a RichTextBox for display, I get "everything" from the .rtf file, i.e.:
{
tf1ansiansicpg1252deff0deflang2057{fonttbl{f0fnilfcharset134 SimSun;}{f1fnilfcharset0 Calibri;}}
[code].....