No Data Being Displays
Nov 19, 2010Can someone please tell me why no data is being displaysed in my WPF DataGrid with the following code:[code]
View 2 RepliesCan someone please tell me why no data is being displaysed in my WPF DataGrid with the following code:[code]
View 2 RepliesI got the System.Data.DataRowView when I tried to select the data from sql database. These are my code:
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myCommand = New SqlCommand("SELECT FirstName +' '+ LastName FROM tblVisitor", myConnection)
myAdapter = New SqlDataAdapter(myCommand)
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I have an Active Directory browser written in vb.net 2008 that allows an end user to visually browse AD. Currently it displays the full DN for each child and what I want is to display just the name of the OU. Something tells me I would use the Tag() function but after playing with it, I just couldn't figure it out. All I removed was our internal domain name.
Would someone like to review what I have now and offer some ideas on what I would change to alter how the tree is viewed while retaining funuctionality?
Imports System
Imports System.Collections
Imports System.Collections.Generic
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I used this code:
myCommand = New SqlComman("SELECT RackName FROM tblRack", myConnection)
myAdapter = New SqlDataAdapter(myCommand)
myAdapter.Fill(myDataSet, "tblRack")
cboRack.DataSource = myDataSet.Tables(0)
then in the combobox i got the display "System.Data.DataRowView".
I have the following code, which reads data from xml file and displays it in the datagridview. It all works fine:
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Instead of showing read data in datagridview, i'd want to read the data from xml file into one dimensional array: X(Impedances) Or is there a way to read value from this datatable into string variable without getting data from datagridview? The point is: i'd want to scan through all "Impedance" values (which are read from xml file) and compare with value y to catch the nearest value to y. How to do that?
I've created a class that inherits from CollectionBase that populates with a custom object type. I populate the custom collection and set it as the datasource for a ListBox control and set the appropriate DisplayMember value to one of the properties of my custom object.
While the binding behaviour is working great, I'm trying to polish up the UI because when the list of objects is somewhat long, there is a momentary flash where the ListBox displays the custom classname which is then replaced with the appropriate display data. I'd like to keep that initial flash of the ToString() method from appearing. I tried SuspendLayout() and ResumeLayout() on the control and the form, but neither keeps the flash from occuring.
What am I missing?
Can you look at my coding and let me know what I'm missing or doing wrong?I have a SSRS report that is called from a ReportViewer control and the ProcessingMode for this control is Remote. The report also has 1 parameter in it's DataSet.In the code I placed a MsgBox to make sure the code is finding the parameter and returning the parameter name. I am trying to stick the value of 10 into the parameter for playerID 10. Data for this player does exist.
I believe I need to add some more code to make this work but I'm not sure what else to add.
When the code executes the report is displayed but no data is shown in the report.
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This program consist of addition, subtracting,multiplyin and divide,..all my calculations here are workin right but i need help setting up the a statement which display diff instead of sum...this is saying that im gettin for example 5 -4 equals 1..but instead sayin this diff 5 4 1 ..it says sum 5 4 1 ..as u can see i does get the result but i want to replace the sum for diff.[code]...
View 2 Repliesprogram that displays all the computer information such ram size, bios, model etc.
View 2 RepliesI've been tinkering with Delegates, and now Multicast delegates. Every time I invoke two delegates It only displays one of the two delegates per invocation.
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I put Label1.Text = Watch.Elapsed.Milliseconds And notice that it goes from 0 to 1000 milliseconds and then back to 0 starting over every time.Then I do some tests and put,[code]...
Whenever I press e, it logs the value in count and displays it.[code]....
This should end program once it hits 5 milliseconds.But the problem is it doesn't.On one of my test runs i notice it does end, but only after a little while. Does this mean VB has a hard time detecting the stopwatch or something?
I am running windows xp media player. Everthing works fine except my photos. They show in library normal but when I select them to play they look as if they have visualized bars. No actual image displays. How can I correct this?
View 3 RepliesHeres my issue which has been bugging me all day and i haven't been able to resolve.
I have a DGV on a form (frmResults) this is linked to a bindingsource of type InventoryItem (popInventory is a list(of InventoryItem) and popular is a list of another class object (StockItem). here's some code to explain better
first the declarations in my globals module
Public Module globals
Friend popInventory As New InventoryItem
Friend popStock As New StockItem
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ok what this routine is doing is on the results form is 2 dgv's the first contains stock to keep, the 2nd one contains excess stock to sell. what i get however is all cells on both DGV's are the last item to be read from the popular list. the items are adding correctly (varified with a breakpoint and looking at variables at the time. the popInventory item is added to the relevent List.
I'm trying to add a record through access. Below is my code. My problem is that when I add a new record, it adds to the database fine, and goes back to the first record like it should, but when I then scroll through using the BtnNext (button), it replaces the last record with the first record for some reason. This is the UI of it [URL]. A bit of further explanation, I'll have 3 records, IDs 1,2,3 respectively. I go to add another (with its ID as 4). When it's added, the program displays ID 1 as it should. It then goes 2 then 3, but instead of 4 as the next one, it displays 1 again. So 1231.
Here's the
Public Class ViewStudent
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
Dim dbSource As String
Dim ds As New DataSet
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Basically I'm trying to change the both if one display(monitor) is active and either turn off all active to displays to one display or change to extended display. Is there any api or similar to do this? My target OS is Windows 7. I'm making a program that can change one active display to having extended displays and vice versa. d. I use Visual Studio 2008 Professional or 2010 Ultimate Beta 2 with Visual Basic Settings.
View 1 RepliesI have a gridview that displays items details, I added two template fields one is a checkbox and the other is a textboc, what I want is simply to check all the items the customer wants to buy, and write down the quantity in the textbox, when I click on a button, I should check all rows in the gridview and when the checkbox is Checked then I should compare the value in the textbox with the value in a databound field of the gridview called Quantity and then carry on my order function...
View 1 Repliesi have visual basics 2008 express and i made a app, how can i change the icon that it displays when on the desktop, and how can i get it to minimize to the right bottom of the screen next to the clock.
View 2 RepliesI have 2 tables in a Access 2010 database. tblA that stores speciesID and weight and tblB has SpeciesID and SpeciesName.Now I want a Combobox that shows SpeciesName and a textbox that shows weight.A have one query that select everyting from tblB, qryB.I have created a form frmA:
in this I have
Combobox1
txt1[code]......
I created a new WinForm application then dragged a notify icon onto my designer. I coded my desired functionality for the NotifyIcon's behavior inside the Form1.vb file.I think I remember something about adding a module to the project, and setting the project to launch the aforementioned module instead of the form...but I can't figure out/recall how to keep the functionality I've coded into Form1.vb.
View 1 RepliesHow can I design a datagrid that displays records and when one record is double-clicked, you can edit that record or when the datagrid record is double-clicked you can view the past history of that particular record in detail?
If you can view the "chart of accounts" in QuickBooks, then you will understand what I mean.
I have two forms (form1,form2). Now I have button in form1 that executes to display text into label1 at form2. How to call it? Do I need to have module for this?
View 5 RepliesI have created a drawing viewer that displays CNC files. The viewer itself is a user control that i have compiled into a dll. I added a reference to this dll to a windows application and added the control to one of the forms. I also have a reference to other custom dll's within this project. The application works exactly as expected. CNC files can be viewed by using the File>Open menu. You can open a single file or load multiple files into a buffer that will allow you to scan through them using Next and Previous buttons.
What i want to do is open this viewer from another application but have certain CNC files already loaded into the viewer. I know i could get this working but i don't think it would be the best way. Is there a way for me to include a list of files in a shell command? Perhaps the enitre viewer application should be included in a dll that has a LoadFiles() and Show() method.
I am sure this is not a unique problem, but I am drawing a blank (Monday morning) on how to fix it.On my Nav menu, user opens a page with a DDL, selects a record from drop down which opens up a single line in a Gridview with a few fields displayed. User can click Edit and Update two fields or of course Cancel, or select another record from the drop down which displays the new record in the Gridview.All this works fine.Issue is when the user goes to Nav menu and goes to another page then comes back to the first page, the last record that was being viewed is still displayed in the Gridview instead of showing only the DDL and waiting for a selection. Its as if the Page Load event does not fire again (In fact it does not). I need it to fire as an initial load, in order for the 'If Not ISPostback Then' logic to properly fire.
View 1 RepliesI'm making a program that displays the balance of the three items with the input of the user input quantity.
one it cost 1.75
second cost 2.00
and 3rd cost 1.25
I need to use a sub, a function and another sub , i've tried to make a program on my own but i'm quite stuck..
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In a picturebox/image control (WPF) how can I set an image which displays when there isn't an internet connection?
Basically, I have the picturebox image set to an image online (ie www.example.com/example.png). But how can I set an image to display when there is no internet connection?
my system is fully designed but everytime I click a button that will to another form (which is also fully designed) the response of my system is to slow. Can you suggest anything to make it faster? I'm afraid that it will catch the attention of the panelist (I have a defense, 2 weeks from now).Here's the image which I've screen shot. Everytime I click a button it will take up to 3 seconds. Thats the sequence.
View 7 RepliesI'm making a program that displays information for a dungeons and dragons game. i have a main form that displays all the information from a .txt file. I've made a new form that creates a new character. on this forum there are currently 7 text boxes and 6 combo boxes all containing different information for the new character.
The problem is now i want to save the new text file with each line of the text boxes and combo boxes on separate lines in the text file. My current plan was to put all the text from the 7 text boxes and combo boxes into one "main" text box then save that text box.
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I have a ListView where ID and date is entered. The date is in the format dd/MM/yyyy.
In the SelectedIndexChanged Property I have written this
If lvRecruitmentList.SelectedItems.Count > 0 Then
txtID.Text = lvRecruitmentList.SelectedItems(0).Text
dtpRecievedOn.Text = lvRecruitmentList.SelectedItems(0).SubItems(1).Text
End If
In the dtpRecievedOn DateTimePicker, the Date is displayed like this
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Pretty basic problem here. Nothing shows up in my listbox at runtime when I add these labels. Dim lblPerson As Label = New Label() lblPerson.Name = "Person" & Master.People.Count + 1 I even tried overriding the ToString() function of the label class as to return Me.Name:
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Occasionally, my website will stop functioning and anytime an ASP page is accessed, the browser will hang for many minutes before bringing up a correctly formatted HTML page with nothing in the tag. It seems to happen whenever more than one person attempts to access an ASP page, but I'm not positive it's isolated to those conditions.
Let me emphasize that the issue does not arise when accessing directories/HTML pages/other files. Only ASP pages are the problem. I am using lunarpages as a host.