Get All The Id (hidden Column) Of All Check Items?
Jun 18, 2012
I have this issue right now. I have a listview with checkbox. Now what I want to achieve is get all the id (hidden column) of all check items and pass it to arraylist so that I can pass it to SQL like this:
dim intProductID as new arraylist
For i = 0 To lv_list_products.Items.Count - 1
If lv_list_products.Items(i).Checked = True Then
[Code].....
"DELETE * from t_products WHERE f_product_id in(" & intProductID & ")" The reason I do this is to have only one time open of database connection, One of the member suggested it is not good to open and close database specially if it is within the loop. One more issue is the command within the array I need to separate all id with commas so I will not have error on SQL.
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Apr 6, 2011
I have a little trouble with my code. You'll see. I'm using the developer express ridControl tool. I have a Gridview in it with a table bound to it. The control lets you filter your info. I have a Select all button that works, the only problem is that if you filter the data and press the select button it selects all the rows, not only the ones that are actually shown on the grid, and I need only the shown ones.
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Jun 22, 2010
I select four columns(those are informations about payed fee for each member...so it could have zero or more rows) from my database (from two different tables), one record as "ID" and other three (i've band them together) as "Rest".Then, I've put that column "Rest" as a DisplayMember for my first ListBox...because I couldn't find a solution to put that "ID" column in the same ListBox, and make it invisible for user (I need "ID" column for accessing those fields about payed fee) I've made another ListBox and set DisplayMember = "ID".
I've put that ListBox on Visible=False and when I select rows from first ListBox "ID" is also changing and on event "SelectedIndexChange" for first ListBox I'm trying to get this "ID", store it into Integer variable and then put it into another select query that will select only selected pay fee from database...everything of this works fine but when I try to put that data from the last select query (something like this: TextBox3.Text = dataTablePodaci.Rows(0).Item(1) ) to a different textboxes (because there are three columns in select) here comes the problem, suddenly. The thing is that I can't see my real records in the main ListBox anymore...and instead of that for all rows I get:
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May 7, 2011
Is there a way of checking if a form (the mainform) is hidden?
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May 16, 2012
I'm hiding the "EmployeeID", my Primary key that is part of my datagridviews datasource. I need to get the value of that hidden column of the selected row of my datagridview. How do I go about doing that?
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Jan 1, 2010
I can show/hide a form, but is there anyway for me to check if a form is hidden/shown? After the form calls InitializeComponent(), and activates the OnLoad Event, it automatically calls the Show() of the form. I do not wish my form's default startup mode to be Shown. I tried overriding onshown method and call Hide in OnShown. It works but this method looks pretty ugly to me though so is there anyway that I can stop the form from even calling Shown when it was first initialized?
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Jun 9, 2011
I have a DataGridView which contains a hidden column. On the BindNavigator SaveItem_Click event i need to populate the hidden column cell with the current date. I tried using the DefaultValuesNeeded event but it did not work out.
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Apr 28, 2012
I want to get all items from one column of database table to the combobox items.
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Jan 30, 2010
I am trying to placed several check boxes (15) in a group box or on a form. I receive the following error message in Visual Studio:
Cannot set column, "The value violates the MaxLength limit of this column".
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Jul 11, 2011
A couple of questions about check list boxes:
How to check/decheck all the item in the list How do you copy or delete all checked items in the list
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Mar 13, 2012
I want to make 5 attachment options in that 4 out of the 5 are hidden.but when he clicks "more attachment" link it will show the other 4.Im using ASP.NET with VB?
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Aug 1, 2009
how can i add item into next column when my first column add to 5 items it will automatically move to next column and continue to add item in 2nd column.
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Jun 9, 2011
I have added columns and items to a listview.
My question is this: How can I add items to the 5th column and at the 2nd subitem for that column?
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Aug 21, 2009
Why is this code having the opposite effect? If It's checked in the checkedlistbox it's not check in my view, if it's not check in my checkedlistbox it is checked in the grid.
EDIT: More specifically. The CheckState.Checked is always the opposite. .Checked means it's not checked.
Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles CheckedListBox1.ItemCheck
Try
[Code]....
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Oct 14, 2009
how do I add items to a select column? Say I have ColumnA and ColumnB, how do I add items to ColumnA then add items to ColumnB? I have:
lvlist.Columns.Add("Cars", 150, HorizontalAlignment.Left)
lvlist.Items.Add("Car1")
lvlist.Items.Add("Car2")
lvlist.Items.Add("Car3")
[code]....
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Oct 16, 2011
how I would go about getting the item count for a column in my mssql db.
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Mar 15, 2011
I have a List(Of DateTime) items. How can I check if all the items are the same with a LINQ query? there could be 1, 2, 20, 50 or 100 items in the list.
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Nov 27, 2010
I don't want that my webbrowser go in the same website two times.[code]...
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Jan 8, 2009
I have a DataGridView control with two columns:
colName
colAnnounceURL
I also have a ComboBox that I need to bind to the colAnnounceURL in the DataGridView. So everytime I add new rows to the DataGridView, the ComboBox will be updated with the items in colAnnounceURL.
I have tried the following to no avail:
cboAnnounceURL.DataSource = dgvTrackers
cboAnnounceURL.DisplayMember = "colName"
cboAnnounceURL.ValueMember = "colAnnounceURL"
The code does not cause a crash but does nothing.
Both controls are visible to the user. The idea is to have DataGridView act as AnnounceURLs manager and ComboBox to set the active AnnounceURL.
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Aug 19, 2010
How can I add all the items of a specific column of a listview. For example I had a listview of a class like:
name............... surname............... age
------------------------------------------------
asdsa..............asdasdasd................21
sadsad..............asdasdasd...............23
sadsad...............adasdasd...............24
I just want to add all the numbers of age column so I can find the total sum of ages of the students. I want, when I clicked my button It makes my textbox's text = 68 for this example.
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Aug 26, 2011
I have program that have 1 label and 1 Listview and its contains 2 columns, I want when user click one of item in listview, the label text is item on column 2, for example: I have 2 Column, the column 1 contains 1 item, the text is "Water" and Column 2 Contains 1 Item is "Fire" I want user when click the Item, the label is item in Column 2, so label text is Fire.
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Jun 9, 2009
I have 3 columns, "Username", "Email","Password"and this is for a program I am making so people can sign up for my program and I will have a webpage to display the username email and passwords in a hidden input textbox. When the user loads the form it wll go to the website, get the text from the hidden textbox, and load it into a get all the emails and passwords and load them into a datagrid and under the appropriate columns. How do I add items to a column the same as I would with a listbox?
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Jul 19, 2010
I have a list with a boolean value as one of the properties. I need to check if every one of these is true. Now normally LINQ would give a nice clean answer here, but as I am using .NET 2.0 I can't use that.If there a nicer way to do this or am I going to have to do a for each loop and break out on finding a false?
Edit:Seems I could have been a bit clearer. I have an object in a list (eg List (Of MyObject)). There is a boolean property on this object called Processed.I need to check that all objects in the list are processed.So in LINQ I'd do:if (from o in list where o.processed = false select o).count = 0 then....
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Mar 29, 2010
How can you check all the checkboxes of all the items in a listview?
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Mar 19, 2009
I have code that i wish to run every time an item is highlighted in a listbox, or that highlighted item changs to a different item in the same list.
Atm, i am using 'Handles lbDiscoveredDevices2.SelectedIndexChanged' where lbDiscoveredDevices2 is my listbox. I dont think this is right as if i click any blank area in the list...it runs the code, and trys to refer to highlighted items, that arnt highlighted = error.
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Aug 15, 2011
My application is in VS2008 coded in vb.net.I have a form with a datagridview which loads data from databaase.there is one column where data is stored separated by comma's.Like Name,Surname,LastName name this column as Testing.I have a checklistbox on another of my form.When the user selects a particular row from datagridview another form open and the row selected records are populated in the control of my other form.My issue is i want to check those items of my checkbox that are present in my Testing Column.I have used and array im able to fetch the records just im not able to check the items in my checklistbox that are present in the column
Below is my code
chkList is my checklistbox controls
FORM1 is my form that has datagridview
Below is the code of my second form that has checklistbox
Dim classesChecked As String() = FORM1.DATAGRIDVIEW.Item(10,FORM1.DATAGRIDVIEW.CurrentCell.RowIndex).Value.ToString.Split(",")
For i As Integer = 0 To classesChecked.Length - 1
Next
how can i check the items of my checklistbox.
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Jan 17, 2009
I have a listbox, textbox, and a button. every time I push the button, an item from the listbox is put into the textbox. when the button is pushed again, it grabs the next item in order and puts it into the textbox. so on and so on until it gets to the last item. once I get to the last item it keeps repeating the last item over and over again. SO what I was wondering is how do I get a messagebox or some sort of checker to tell me when it has moved the last item from my listbox to the textbox?? PS textbox2.text=0 and every time the button is pushed another number is added to the value of textbox2.text. so basically if I could figure out how to grab the value of lines at any given time in listbox I could call a msgbox up!! here is the code I am currently using[code]...
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May 7, 2012
ok in vb6 i would use this to check all items in a listview.
[Code]...
Now Here's my confusion. And i spotted at least one other person on here who was asking the same thing about this.But got no real clear answer that i could see. as a test to compare i tried his suggestion and loaded the same listview up in both a vb6 app and a vb.net app..The list i used was quit large so the comparison would be very through..my list was in the 80,000 lines range tho..yeah talk about overkill The vb6 app checked/unchecked the items within a matter of milliseconds..the vb.net took an extremely long time tho..well not extreme but was very noticeably slower about doing the loops.
[Code]...
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Jul 15, 2011
But I'm having a problem with showing the right info in a gridview.
Basically I've got a maintenance tool for an application. And I want to make it multi language.
This is a check for the language:
'setting the column name where to get the text resource from
Dim comment As String = "comment"
If (licentie.getlanguage() = "NL") Then
[Code]....
So far this works. But in my template I've got the following code in the gridview:
<asp:Label ID="LabelType" runat="server" Text='<%# Bind("Comment") %>' />
How do I set the column 'comment_NL' when the language is set 'NL' in the bind?
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Feb 10, 2010
I have simple app code:
Dim sw As New StreamWriter(FileName, False, System.Text.Encoding.GetEncoding(Encoding))
Dim adapterPositions As New MyDatabase1DataSetTableAdapters.PositionsTableAdapter
[Code]....
How I can check column is DBNull or not?
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