Do List View Controls Accept Blank Data
Jul 1, 2010
I'm trying to fill a ListView control in a VB2005 project. It works fine from underpinning (Access) database IF all the data is present. However, if a field is blank (in this case - a field called "Actual Date" which is meant to be blank for this record), the ListView will stop populating at that point.I thought this may have been the 'CausesValidation' property of the ListView but that doesn't seem to change the behaviour.Is this an inherent feature of the ListView - if so it seems daft - or is there a property I need to change or an override that I need to code?
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Mar 15, 2012
what is the syntax for blank list view object... for example:[code]what is the syntax for classlistview is blank? as in no record(s) were retrieved.
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May 30, 2010
I have a field called PODate & TextBox txtPODate.text. It saves/updates fine when the txtPODate is filled. But when the txtPODate is blank, it throws an error. The problem is that I can't enter date for each record unless I got Purchase requisition converted into Purchase Order. Once it is converted to PO, I need to enter the date to update that filed. So, how can I make my program to accept blank date field.
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May 18, 2008
figure out a way to link datagridviews to other controls like a combobox, list view or even another datagridviewBecause much of the code is managed by the IDE, I was expecting an IDE approach to linking controls. Is this the case or do I have to modify the generated code to do what I want.An example would be to use a combobox to limit the number of entries in a datagridview etc
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Dec 5, 2010
I have to turn this program in TOMORROW! I can't seem to figure out how to do this section. If someone I can do the second part.I have two text files, one is a single dimensional array, and one is a two dimensional array. One titled "Months.txt" and the other "Rain.txt".The problem is I have to read those into an array, and then after that, use a query to pull the information and display it into a data grid view style box.The problem I'm facing is when I pull the "Months.txt" text file, which has the months in order from January....December, and try to display it in the data grid it puts the length of the names of the months, not the actual months. me on this matter? I've tried to no avail. Also, how would you add all of the numbers in a single row of a two-dimensional array to give a total to display in the data grid? Also, the column?
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Aug 4, 2010
I have added a list box and now i need help to display the data about my employees in the list box. How am i supposed to do that, do we have to put in codes or need to use that small arrow near the list box.
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Jun 11, 2011
I want to bind data to telerik list view, if the database four record,each page of list view show 3 record, that means it will have an record show on 2nd page then still got 2 record was empty, so i want to show the first, two record under the fourth record,
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Mar 26, 2010
We have a project to make using the MS ACCESS as our database and VB.NET. The project called "ELECTRONIC DICTIONARY". I got trouble creating the code for retrieving the data in the list view of the VB.NET. please help me how..teach me what's the right codes for it. Here's my code:
[Code]...
IS this the proper code for this?We are required to retrieve only the WORDS in the database in list view. But we need to load the information of the books also.Admin Edit: Please use code tags when posting your code. Code tags are used like so =>
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Nov 19, 2009
In my MS Access database a certain column has been given a LookUp query so users can just select the appropriate entry from a drop down list.
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Jun 22, 2010
how do you sort the data by columns in a list view, for example, clicking the title of the column to sort by ascending order.
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Jun 17, 2009
the code I can incorporate in my application which will allow me to transfer data from my listview to a notepad or .txt file
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May 12, 2009
I have a button1 and a listview , upon click of the button1 which is link to a FolderBrowserDialog tool ( In built in VB in which it will allow you to choose the folder you wan on your computer ) , i will select the foler i want and than it will show up in list view the path name and filesname including those in the subfolder inside the folder .
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Mar 12, 2008
I get some very generik trouble need to implement List View with Image in SubItem. All can be very fine ....But I need to use Virtual Mode. Whatever I search I haven't still found working solution's. I have found some C# code that seem's do that. But I can't convert it in VB.Net. let's explain detaly.
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Jul 13, 2009
I am trying to write the code needed to link two tables together. One table is a list box and the other table is a data grid view. What would the example of the code needed in order to link these tables together so that each time you click on an item in the list box, the data grid would then show the corresponding information that matches up with the selected item.
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Jun 22, 2010
I wonder how can I extract numerical data from a column of a list view and sum every and show in a label?
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Jun 7, 2011
Another noob question from me...one of these days I'll get the hang of this VB!I am importing data from an Access table that has four columns/fields. I have set up the relevant headings etc on the list view control...but I have also set up a 5th column as I want to have that representing the percentage change between columns 3 and 4 (which are numeric).
Here's my code. What I want to know, is that having confused myself with code I've written / adapted from advice given etc where do I put in a forumula to add something to a column in my list view that is a calculation based on two columns imported from the table?
[Code]...
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Jun 18, 2009
Basically, I want to get the column data from a selected row in a ListView (non-MultiSelect).how to do it if it's just the first column (lvw.SelectedItems(0).Text) but how do I get the data from the other columns?
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Dec 27, 2011
I try to show my table data type in datagridview vb.net.[code]I try login using username "system". When I run this code, I got error message "ORA-00900: invalid SQL statement".
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Aug 15, 2011
I am trying to retrieve the data from MS Access Table to LIST-VIEW, its difficult for me to write the code
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Jun 30, 2010
I'm using this code to search a msacces db and display the data in a listview.The Search is fired after the text_changed event of a textbox. So each character is a search and also each backspace(here's where the real pain is) it will search. When I use backspace its very very slow! When I use 100 or even a 1000 records no problem but this db has 10.000 + records.Whitch event can I use to solve this problem or how can I adjust the code for faster search? ALs o when I test on a windows7 system, dualcore, 2gb memory, when I press a key it will take time before I see the character in the textboxs? Its a new system and only runs this program.I use a texbox to enter for example an artist name and a combobox where the user can choose to search on artis, title, genre etc. [code]
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Aug 1, 2011
I try to show my table data type in datagridview vb.net. Here is the sample code :
oradb = "Data Source=(DESCRIPTION=" _
+ "(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=" & txtServer1.Text & ")(PORT=" & port1.Value & ")))" _
[code]....
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May 27, 2009
how to fill List View and Data Grid from a Database (SQL Server).
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Jul 18, 2011
I have the following "contact" data (exampled below) stored in an xml file.I've created a frmContacts windows form and placed a list box control inside it.I'm new to the list box but plan to have the users manage the list by letting them add, delete, and pick from it. For searching there should also be a sort function/button (by last name then first name).If the user deletes from the list the corresponding data in the file will be deleted.If the user picks from or adds to the list, I'd like to find the best way to populate the corresponding data elements on another form (i.e., in their respective text boxes). This will include the ability to edit/save from this other form too.
<?xml version="1.0" encoding="utf-8"?>
<Rows>
<Row>[code]......
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Jun 21, 2010
I have developed a win form application using vb.net 2.0, mistakenly my vbproj file deleted. Now the issue is that when i open the solution in the design view all my forms ( 170 + ) shown blank. but when i run the application all the controls are properly displayed and application is running fine. Issue is why all forms are shown BLANK in design view , as i cant make any changes to the design now.
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Feb 18, 2011
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[Code].....
MS has a patch for the OnListChanged event handler issue, even though it seems we have to pay to have access to it. This fix specifically addresses an error message when you press ESC to cancel adding a new row in .NET 2.0: [URL]
FIX: Error message when you try to press ESC to cancel adding a new row to a DataGridView control in the .NET Framework 2.0: "An unhandled exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll"
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Nov 8, 2011
If I have the following ListView, how can I attach a SelectedIndexChanged event listener to the DropDownList so I can perform a command on the respective object? Imagine I have a list of new users and I want to add them to a usergroup by selecting the group from the DropDownList.
<asp:ListView ID="NewUsers" runat="server" DataSourceID="NewUsersSDS" DataKeyNames="ID">
<LayoutTemplate>
[Code].....
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Jul 29, 2011
I've used Me.Controls.Add() to add text boxes and now, I'm thinking how can I INSERT the data in these text boxes to database.
[Code]...
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Jun 9, 2009
the VB .net experts. I added the following code and I get an error as shown below.
[CODE]....
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Dec 29, 2009
I want to develop a tree view and list view form by using vb6, how to construct a tree view and list view form?
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Dec 9, 2011
I'm trying to get an in a loop to accept a value and add it to a list each time okay is pressed. For some reason, I have to add a value twice for the input to be added to the list. For example, if i enter the string "hello" in the inputbox and click okay, it doesn't add to the list, but if i do it a second time, it goes in.
Here is the code for it
Do Until lstCourse.Items.Count = CDbl(txtClasses.Text)
InputBox("Enter Course Number", "Course Number")
strCourse = InputBox("Enter Course Number", "Course Number")
lstCourse.Items.Add(strCourse)
Loop
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