I'd like to know which VB.net control has more characters. To explain better:
I have a file with 1 million ca characters, well I want to insert all content in a VB.net control, either textbox, richtextbox or labels.
If a control with that huge capacity doesn't exist, is there any way I can set limit max 1 million and display them anyway (e.g. in a textbox)?
Much appreciated your help!
From http://msdn.microsoft.com/en-us/library/system.windows.controls.textbox.maxlength%28v=vs.110%29.aspx
When this property is set to 0, the maximum length of the text that
can be entered in the control is limited only by available memory.
Related
In HANA, there's a column of type NVARCHAR(4000) with value ThisISaString, is the RAM that is being used = 4000 or 13?
If it reserves 4000, then this space could really add up when you have a lot of records.
I am trying to decide how big I should make my text fields.
What I make of your question in its current form is how SAP HANA handles variable length strings when it comes to presenting it to the client (I take from your intention to reserve a buffer.
Thus, I'm not going to discuss what happens inside of HANA when you enter a value into a table - this is rather complex and depends on the table type used (column, row, external, temporary...)
So, for the client application, a (N)VARCHAR
will result in a string with the length of the stored value, i.e. no padding (with spaces at the end) will happen.
I have noticed that core spotlight description get truncated even if description character length is under 150.
Apple says : As with titles, long descriptions can also get truncated, so it’s best to limit your description to 300 characters.
I was wondering Why the core spotlight description get truncated even though the character length is less than 150 as Apple recommended to have limit 300.
Appreciate your help.
If I remember correctly, you can manually insert a newline in the title string, and it will use 2 lines, but will not autowrap to the next line without it.
How much truncation will happen depends on various factors, including but not limited to:
the avatar size
the title length
whether its a top hit result or a normal suggestion
Also new line \n doesn't work in Content description. I suggest you can separate different values using | sign. Core light Search result UI is very limited in terms of how much you can customise.
I'd like to know if there is a way to predict the size of a .doc based on the number of pages it contains.
I'm trying to form a rough estimate of how much storage space I need when anticipating X number of .doc's of Y page length.
For example: "I need to plan for 100 .DOC files, each being 15 pages in length. These .DOCs will consume roughly _KB of space."
Thanks
Not really. There's too many variables.
For example, a .doc (Word 2003) containing a page of nothing but the character 'a' in one font takes up 37kb, in another the same number of characters takes 32kb, in another 43.
The most practical way would be for you to average the sizes of the sample files, and work off that, but be aware that the smallest change can have rather large effects.
I've building a very basic iphone app where the user will be able to enter or select a very large numeric cash value (usually in the thousands or millions).
At the moment I am using a simple text box entry with number pad selected.
I am going to use the example of a Football transfer fee as an analogy.
A transfer fee can be in many millions and I really do not want the user to be mis-typing zero's, or getting frustrated with the number of zero's they have to enter.
In addition, as the text box/numeric cash value is not displayed with any currency formatting it makes it very unintuitive to know just how much you are entering.
In this thread I have a way of displaying big numbers on the screen; you'll also notice the numbers are formatted in chunks (ie: 2.25m, 2m, 7.25m, etc) -- it makes the process more streamlined and is more visually intuitive.
But what I am unsure about is how to make it easy for the user to enter big numbers without typing stupidly long zeros every time.
Possible solution 1 -- Use a UIPickerView with 3+ segments for each of the units.
Problem -- it won't handle smaller numbers properly, also you may get weird looking numbers like 1.15k which although correct is not what I want to display.
Possible solution 2 -- Use a +/- button to allow a user to simply increase/decrease the number by a factor of 250 or 500. This is the simplest answer, but its not as elegant as a UIPickerView
If there is another way to do this, a way to simplify the input of big numeric numbers from a user, I'd be interested.
You could add formatted output right above or below the text field. As they enter numbers, update the formatted field adding currency symbols, commas and decimals. Not the most elegant way to do this, but it would be simple to implement, and intuitive to the user.
What is the maximum record count for a DataGrid in VB.NET? Is there any limit?
There is no explicit limitation in a DataGrid.
However it is constrained by both it's internal data structures which tend to count rows in terms of Integer. This means the hard limit is Integer.MaxValue
On a 32 bit system though, you will hit problems long before you hit Integer.MaxValue rows. Every item added to the DataGrid has a certain amount of overhead. If each item only has 4 bytes of overhead, you will max out at Integer.MaxValue / 4. This is really a simplistic view of the problem though because it doesn't take into account other controls, internal WinForms resources, etc ...
How many records are you thinking of adding?
I'm not aware of any hard limit outside the physical limitations of available memory or perhaps Integer.MaxValue. I wouldn't be too surprised if there is, though.
What's more important is that a datagrid is a visual construct shown to real users. Users won't much appreciate a grid with 1000 items it, let alone 100,000+ (which I have seen before).
The point is that rather than worrying about the maximum records you can stuff in there, you're better off implementing paging or a better search mechanism.
The Count property of the DataGridView.Rows collection is an Integer, so the normal range for 4-byte signed integers should apply as an effective limit: 0 to 2,147,483,647
As to what the Rows collection can actually hold, I'm not sure... it would depend on what your application is actually doing.
Apart from Integer.MaxValue, I guess it depends on the memory available to the application & already used.
Why are you thinking of filling the grid with all rows at once?
It doesn't make sense showing users all the records.