TextBox Fill Successfully But String Can Not Be Filled - Shows Empty
Nov 18, 2011Its my Code
CODE:
The problem is TextBox fill Successfully but String can not be filled. it shows empty.
Its my Code
CODE:
The problem is TextBox fill Successfully but String can not be filled. it shows empty.
How do I fill a textbox with text if it is empty? I am using VB.NET.
View 4 RepliesSo im trying to fill a combo box with data from a database but depending on how much a pregressbar is filled THis is what im trying:
Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Form1.ProgressBar9.Value <= 10 Then
Me.Level1TableAdapter.Fill(Me.CTDBDataSet1.Level1)
[code]....
I'm trying to add a progressBar to my form but it always shows full or empty, it never shows anything in between like 20%, 30% etc. Here is my
ProgressBar1.Minimum = 0
ProgressBar1.Maximum = 2
ProgressBar1.Step = 1
[code].....
This must've have been asked before but I couldn't locate it. In a mixed code project (VB and C#) we were debugging some old Visual Basic code where a statement as follows could be found:
If Request.Params("xxx") <> "" Then
'do something
I considered this a bug as Request.Params could be null, in which case the statement would've become false which wasn't the idea. So I thought. I just found out, -- probably for the tenth time and I will keep forgetting -- that the following two statements are not equal, while Nothing in VB should be equal to null in C# (thought I):
if(String.Empty == null) // always false
If String.Empty = Nothing Then ' always true
Should I dismiss this as a typical Microsoft backward compatibility effort, or should I consider this a huge error in the VB.NET compiler? Does anybody know the Microsoftean opinion on this oddity?
I wrote a web application(website) for a company using vb.net 2008 in VB.NET and asp.net and , so now i want to create a "Setup Project" trying to make it an installation package.according some online source i did: click "File"on the main menu, then, new project> web setup project>ok , then select webapplication folder However, when I tried to "Add -> Project Output", the "Add Project Output Group" dialog box shows up empty. There is nothing showing up in the drop-down list. According to a VB.NET book as well as some online tutorial, there are supposed to be stuff in the drop-down list showing the types of projects.
View 4 RepliesI am wondering if data grid automatically shows a first column (empty) before the others, if that can be edited out.
View 14 RepliesI have a array of strings and I am looping through them, but the string might be empty so I am trying this:
[Code]...
I think this may be a usual issue but I am not able to find much info. There is a master customer database and a call log database at work. The call log database has two tables that are updated from the master database monthly. Now I am writing this vb frontend for the call log database and cannot figure out the update portion
For p = 0 To maxrowsC (currently around 1000 rows)
With myCommand.Parameters
.AddWithValue("@HEATSeq", dsCallLog.Tables("ConfigDS").Rows(p).Item(0))
[code].....
I have a View that i am trying to use to fill a TableAdapter with. In my code i fill the table adapter properly the first time, filter my bindingsource and use datarowviews to loop through the rows of data and perform the updates needed (done by a stored procedure). Now the problem is, after these updates take place, i need to fill the tableadapter again so that it reflects these changes. Sometimes the View i am using will have no results, other times it may.[code]This is the exact Error "Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding."Okay, you'll notice that i fill my view, then filter those results on the column Number equal to 1. I loop through all those results and update the table my view is created off of. After exiting the loop i hit the second .fill which times out after about 20 seconds. After testing, this time out only seems to occur when MyView does not hold any records.
I use Visual Studio 2010 and sqlserver 2008. All work is done in VB.NET. Also, during debugging, i paused on the second fill, went to Toad for Data Analysts and ran a SELECT * FROM MyView which did not time out and returned the empty result table in about 19 seconds. I have also tried doing a dispose on the tableadapter before the second fill but it has a similar time out. Sorry if this answer seems obvious or something, i'm only an Intern and am still learning the language. That seems to have done the trick, from my understanding that lets it run until it finishes (SQLServer will shut it down if the connection stays open longer than it allows). The ta.fill runs at about the same pace as Toad coming in around 19-20 second mark and does not error after multiple tests.
As the title says I have a form with many databound textboxes. some of these boxes have data in them and some are empty. I need to add them altogether, so far all of the conversion methods I have tried err out when they run into an empty string, except Val, but then Val won't handle the string with a $ in it. I've tried decimal.parse which handles the $ but not the empty string. So I seem to be in circle that I can't get out of.
View 2 RepliesI have a textbox that is filled using autocomplete. The autocomplete is a globally accessible sub that I use for textboxes and (I guess) comboboxes.My problem is that the autocomplete sub takes several seconds to fill the textbox. Is there some way my code could be improved? (The code below takes three seconds to fill for 288 autocomplete entries, which I don't think should be a lot for this kind of functionality.)
My best bet is that the autosorcecollection has to redraw itself every time an entry is added, and that causes the delay, but I'm not sure.Apart from taking time I think this global function is really handy, so feel free to use!
[Code]...
After running the following sub (VS debugger), I try to detach the database in SSMS, but it shows the connection open still and won't let me detach. If I close program in debugger, the database shows no connections. I check the dataadapter's connection in the finally block and is shows closed. What gives
Private Function ClientMasterDBFiles(ByVal MasterClientDBConnection As String, ByVal DBName As String) As DataTable
[Code]...
Is there anyway to suspend a for next loop until a textbox has been filled in and the keyboard enter has been press
Dim playersname(7) As String
Dim players As Integer = 7
[CODE]...
I'm creating a file thats need to be in this format url... I need to be able to set the limit of the string length for certain fields.Is there an easy way to set the limit of the field so that if the string was larger then the limit then just take the substring and if smaller would add extra spaces?I was able to accomplish something similar to this with integers by just using .toString("00000").
View 3 RepliesThe application is working good, i can receive data on port 48888 and i can write it to my logfile, but my problem is when i convert bytes to string. I have the correct data, but all the bufferReadSize is filled with space. Example: if i send only: test, my log file will have test and 4 lines of space only. In my code, right after Dim clientdata As String = Encoding.ASCII.GetString(bytes).
I tried to trim(), replaceI() or any string manipulation, and it's not working!%!? Is there anything i need to do before i can start manipulating that string?
I am having some bizarre issues with getting focus on the child objects of some user controls that I am developing.The base control, DatePanel, consist of three radio buttons, a textbox, a combobox, and a datetimepicker.Depending on which radio button is selected depends on which of the other controls are visible.The default state of the control has the textbox and combobox visible.When I test the control in the VS test container, I click in the textbox, the cursor appears but I cannot type, if I click in the textbox again then I can type.I have tested enough to figure out that if I click on any other control and then click on the textbox I can type.I have tried adding a gotfocus event for the user control to both Focus and Select the textbox and neither does anything.This user control is on several other user controls that are in development because I didn't catch the behave at the beginning.To make things a little stranger in one of the other controls, I found that if I set the tabindex of DatePanel A to 0 then I was able to type in the textbox after selecting it the first time, however if instead I click in the textbox of DatePanel B the cursor appears in that textbox but when I type the text appears in the textbox in DatePanel.
In terms of code on the DatePanel there are 6 properties and 3 events.The 6 properties return values of the fields on the DatePanel and the three events are for watching the state of the radio buttons.Other than that I did try adding the GotFocus event to no avail.I can provide any code that is needed but between myself and my colleagues we couldn't see anything that would have any influence over the control focus.
I have a DataGridView1 where I have 6 columns and 0 rows (they are added additionaly in the application) and also have a TextBox1. How can I calculate all data from the second column to the TextBox1? For example, I'll run the application and add rows, where the text in the second column will be: (4, 8, 9, 1)... it means 4 rows...
So how can I make the value of those numbers (22) show in the TextBox1, so that it will calculate the numbers and show the sum in the TextBox1?
There are 3 textboxes->textbox1,textbox2,textbox3 and 1 button.In textbox1 bname will be stored and in textbox2 aname is stored.Bname and aname are columns of databasetable.This are not unique.There are same bnames and anames records.What I am trying to do is:when the user clicks on button then the code should match textbox1 and textbox2 with the databasetable and get the count of rows that match this data.
And print the count in the textbox3.If there is no similar bname and aname in the table then the count should show 0.I tried doing this but am pretty sure that its not right as its not working.
There are 3 textboxes->textbox1,textbox2,textbox3 and 1 button.In textbox1 bname will be stored and in textbox2 aname is stored.Bname and aname are columns of databasetable.This are not unique.There are same bnames and anames records.What I am trying to do is:when the user clicks on button then the code should match textbox1 and textbox2 with the databasetable and get the count of rows that match this data.And print the count in the textbox3.If there is no similar bname and aname in the table then the count should show 0.I tried doing this but am pretty sure that its not right as its not working.
View 1 RepliesI was trying to call a method using Reflection on a method that has a STRING parameter.However a STRING does not have a parameterless constructor.So instead of something like.>>
Option Strict On
Option Explicit On
Option Infer Off
Public Class Form1
[code].....
i have a string array that i want to output to a text file. the array size is 10000. i fill the array starting from 0 with some strings. at the end, i only want to show the array from index 256 to the last array that is not empty (for eg. if the array is filled with data from 0 to 2000, i only want the text file to show the data from 256 to 2000 and ignore the remaining strings). Is there any function to do this?t i use is shown below
Dim myArray(10000) as string
Dim strArray As New System.IO.StreamWriter("c:List.txt")
strArray.WriteLine("{0,10}{1,30}", "Index", "Symbol")
[code].....
I am trying to import a .csv file exported from google contacts into a textbox in VB.net. For some reason characters such as © ¥ ¤ ¶ turns out as when imported. [code]
View 3 Repliesi have a string array that i want to output to a text file. the array size is 10000. i fill the array starting from 0 with some strings. at the end, i only want to show the array from index 256 to the last array that is not empty (for eg. if the array is filled with data from 0 to 2000, i only want the text file to show the data from 256 to 2000 and ignore the remaining strings). Is there any function to do this? i am using visual basic express 2008. The code that i use is shown below
[Code]...
I have a nullable database field of type varchar. I am writing a unit test for a service method that retrieves the value of this field. The service method uses a custom DAL that returns a value of String.Empty if the database field is Null (this is desired behaviour).
[Code]...
just found out that replace(string does not do the same as string.replace when my string variable was an empty str the first one returns "nothing" and the second returns an empty string (as expected).just sloppy coding anyhow, it was a function that was converted from classic asp and never rewritten properly. [code]
View 1 RepliesI am doing some calculations and the outcome of those sums are like 0.743449889958
the sum is calulated like so textbox.Text = (textbox1 * _Units) / _priceincur
how would i format the string so that it only shows 0.7434 (rounded)
I'm fairly new to ASP.NET & VB.I've been asked to take an existing textbox that is automatically filled with the current date and allow the user to either add a "+" or "-" and a number or a spcific number and convert that into a date.I underdstand the basic concept on how to do this, but I'm running into some problems using the proper commands in order for this to work.The Textbox is called txtDate.What I've tried to do is this:
If txtDate = '+' Or '-' Then
DateAdd("d", txtDate, today)
End If
Here is what the whole thing looks like:
Protected
Sub
DateEnter_Click(ByVal
sender As[code].....
I created a button in my form which is used to add a new textbox.But before that, the button should identify if all the textboxes that have been created are empty.If there is an empty one, it would not add a new one.[code]
View 2 Repliesi have a next button that is enabled only after a textbox is filled its working fine but the problem when a user fills the textbox it will be enabled then clears the textbox it will stay enabled and he can proceed how to stop that ?
View 6 Replies