I want to loop through all the items in the datagrid and compare them with a particular item(unique) present in the datagrid itself, and if it is not equal that unique item ("My Pipeline" is the name of that particular item) with which i want to compare rest of the items with then delete that item and move on to the next item and compare again.
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I'm trying to write an alarm clock application. When the program runs, a clock is displayed along with an 'Alarms' button. If the user presses the 'Alarms' button a new form opens with a datagrid with 2 colums, 'Time' + 'Message'. What I want to do is have the user enter a time and a message. The tick event should check the times entered in the datagrid, and when it reaches a time entered, the appropiate message is displayed.The problem I am having is how do I extract data from the cells of the datagrid. I want to compare it with the current time but am unsure how to do it. I've attached my sample code so far which just declares a time on the main form and shows message when time is reached.[code]
View 1 RepliesI have a datagrid, with two columns and two rows. The first row is the title of thecolumns, the second is the values. I want to compare the title of the row to a string value, and if it is the same subtract one from the second row value. If it is not the same, compare to the next column title...
Public Sub tickets_left()
Night = "Hoodoo"
For mm = 1 To 2 'ds.Tables("AddressBook").Columns.Count - 1
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with vb.net + access 2007 i am having a database with 2 tables & 4.85 lak records
the task:i want to Loop through all the records & compare the Current record with the previous record & edit the database with some changes as per logic i have written a procedure but the process is very slow approximately it is taking 1 to 1.5 second to check & edit a record
here is my code
vb.net
Private Function ISCasuaLty(ByVal CAStype As String) As Boolean 'this procedure checks whether the duty type is of Casualty'& returns true if the casualty is "Y" else "N" FALSE If CAStype = "" OrElse CAStype Is Nothing OrElse CAStype = " " Then Return True ' there
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I am attempting to loop through each record in dtlist and compare it to each record in dtsold get the distances and retrive the max value I get an error on the line:
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I have a question about efficient implementation. Lets say I have two arrays:
One array is all possible items in a house: Table, Chair, TV, Fireplace, Bed
The other is an array of items in a particular house: Table, TV, Bed
I also have two list boxes:
1. listbox for items in the house - the "HAS" list box
2. listbox items not in the house - the "NEEDS" list box
I need to list the items already in the house in the "HAS" list box as well as the items that are NOT in the house in the "NEEDS" list box. It seems to me that nested "For each" loops would be a start to solving this problem but I am not exactly sure which case needs to be nested.
I'm trying to compare a string with all the items in a listbox, if it finds a match it returns true
Private Function Checkuser(ByVal username2 As String) As Boolean
If InvokeRequired Then
Invoke(New checkmeInvoker(AddressOf Checkuser), username2)
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note ive tried more than string.compare does it have something with return false being at the bottom of the function. becuase ive tried adding an exit function once it returns true, but still I get returned with false to make it even more frustraiting the clipboard results are test/test
I have a listview with checkboxes for each items in the listview. You can see in the listview1_itemcheck event that when I tick and untick for each checkboxes in the listview, it will add the subitems text in the label. Can you please help me with a button event as I would like to know how i can check the subitems in the listview when I add each subitems text in the label?
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I have a question about comparing values inside of a List. I have a single list of strings. Inside the list are multiple values. The values are arranged so they can be dumped into a spreadsheet.
Example:
Private ListOfStrings As New List(Of String)
ValueA(0), ValueB(1), ValueC(2) 'These three values are the same as the three values in the 4th "row" below
ValueD(3), ValueE(4), ValueF(5)
ValueG(6), ValueH(7), ValueI(8)
ValueA(9), ValueB(10), ValueC(11) 'These three values are the same as the three values in the 1st "row" above. Since this is a duplicate, I need to add a "count" of value 2 and then delete the values of this row from the List. Etc...
Each line above represents a "row" in a spreadsheet. All three values in each "row" have the potential to be the same. So, I need a way to A) Compare and count all of the common "rows" (using only the first value from each row) and B) If common "rows" occur, I need to delete all but one row from the List. ListOfStrings.Remove ?
how can i add rows in datagrid using for loop in compact edition.[code]
View 4 RepliesI have a datagrid with a list of subscriptions in. Is it possible to loop through the rows in the DG, check the date of expiry (cell 5) and highlight it in red or whatever if its "expired"?
View 4 Replieshow to "loop through a datagrid column to add values to a variable
in VB6 it was something like:
do while not .eof
myvariable = myvariable + datagrid1.collumns(6)
loop
how can I filter the items on my datagrid which is displaying the data from my SQL server database, through a textebox text.
View 2 RepliesI have a datagridview and I have a column combobox. (First column) I want to add item to combobox of datagrid. But I cant get name of it.
View 1 RepliesIt's lacking of loop and I dont know how to fix it. The main problem is that not all the selected records are inserting/ed in the database. only the first checked checkbox inside my datagridview. I'll attached a picture for the viewers to easily understand my problem.
So,First,Here's my code:
For i As Integer = 0 To DataGridView1.Rows.Count - 1
If CBool(DataGridView1.Rows(i).Cells(0).Value) = True Then
command.Parameters.AddWithValue("@CONSO_PARENT_STOCKHOLD_CODE", DataGridView1.Rows(i).Cells(2).Value)
ParentDone = True
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I have a for each loop in vb.net for this particular example there are 2 items in list but after the first item the loop exits are there errors in the code [code]
View 2 Repliesi have a listbox with 30 items. i trying to loop through all items in the listbox 1 by 1 and display each item in a text box using the code below.the problem i am having is when it gets to the last item in the listbox i get an error message.Public Class Form1 Private curNum As Integer
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Timer1.Interval = 10000
Timer1.Start()
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Well, i had a problem that SEEMED to be resolved, this was until today when it suddenly stopped working and started repeating the same item (See below)[code]...
View 8 RepliesI have 2 listboxes I want to insert items from listbox 1 in column 1 of the datagrid view and items from listbox 2 in column 2 of data grid view the below code will add items from listbox1 to column1 of the datagrid view :
DataGridView1.ColumnCount = 2
DataGridView1.Columns(0).Name = "File Name"
DataGridView1.Columns(1).Name = "Status"
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what can I do to insert the items of listbox 2 in column 2 of the data grid view.
I want to populate a listview with items from datagrid view. I've been searching for solutions but it seems that all the scenarios I found were about populating listview with items from tables in database, not from another listview or datagrid view.
I'm trying this code:
For count As Integer = 0 To (DataGridView1.Rows.Count() - 1)
Dim row As DataRow = DataGridView1.Rows(count)
Dim item As ListViewItem = New ListViewItem(row(fieldfirstcol).ToString())
item.SubItems.Add(row(fieldsecondcol.ToString()))
ListView1.Items.Add(item)
But it doesn't work; it says DataGridViewRow cannot be converted to DataRow.
I have a datagrid and has items of quantity, product, desc etc is it possible that i will get all the items in my datagrid and put it all in my database im thinking of using the datatable or dataset.
View 35 RepliesMy 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.
I am used to C# and just started vb.net. I am trying to do a while loop when it loops through the items from a list.
While oResponse.outputControl.Items(i) <> Nothing
//Do something
End While
I want to retrieve all the items in a listbox with a For loop. there are only two itemsin the listbox. I'm able to retrieve the first item in the listbox when the counter of the for loop is 0. when it gets to 1 an IndexOutOfRange Exception is generated.
Here is my code.
Dim i As Integer
Dim count As Integer=Me.ListBox1.Items.count
Dim sel As String
For i=0 To count-1
sel=Me.ListBox1.Items.item(i).ToString
MsgBox(sel)
Next i
I have a quick question...is it possible to make a "for... each" loop that would go through each selected item of a listbox? What I want to do make sure there are no dupe names in the listbox.
View 2 RepliesI have this script which is designed to loop through all of the selected listview items, and delete them from the ftp server. - The list view item names are exactly the same name as they are on the FTP server.
For i As Integer = 0 To ListView1.Items.Count - 1
Dim ftp As New FTPclient(host.Text, username.Text, password.Text)
ftp.FtpDelete(ListView1.SelectedItems(i).Text)
Next
Some info:
The FTP server works fine! I'm using it in other places in my script, and those functions work fine. ftp.FtpDelete works fine as a function, I've used it to delete single files before. It doesn't delete any of the files, it just gives me a load of exceptions.
A first chance exception of type 'System.Net.WebException' occurred in System.dll
A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in System.Windows.Forms.dll
A first chance exception of type 'System.Net.WebException' occurred in System.dll
A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in System.Windows.Forms.dll .....
I have a list box where the user can add choices depending on what items they want active in the database but I cannot figure out how loop through this listbox to update the items.
Visual Studio 2010
Dim lstitem As String
For i = 1 To ListBox1.Items.Count()
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I am binding my listbox to a dataTable, the reason why i am using a listbox is for multiple selection, the user can select more that 1 item, when the user has selected there items, i need to save them into the db, line after line. heres my code, i cannot get the listbox to display all the selected items in my test page.for now in my test page, i just want to show the selected indexes of the items, and then in my next step i would want to add then indexes to the database, for now i just want to loop and display all the selected indexes.
Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
'1. Create a connection
Dim conn As New MySqlConnection(ConfigurationManager.ConnectionStrings("MyConn").ConnectionString)
Try
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This is my current code and I wish to optimize it, any suggestions on how I could speed this up?
for (int a = 0; a <= listViewAssets.Items.Count-1; a++)
{
if (listViewAssets.Items[a].Tag.ToString() == oldReference)
{
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i have a listbox full of items and i want to use a loop to access these items one after the other and then process each one for admission.That is when the item is at memory location 0, it will work on that item and the move to the next at memory location 1 till it gets to the end of all the items in the list box but my loop is not working i have tried different types of techniques but none of them it working these are my codes
Dim i As Integer
Dim count = Me.lstbprocessapplicant.SelectedItems.Count
For i = 0 To count - 1
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'This one only gave me the indexes?