Exclude Records From The First And Last Rows In A Loop
Aug 24, 2009
Below is my export to csv from listview using vb.net
Function ExportListview2CSV(ByVal lstview As ListView) As Boolean
Dim saveFileDialog1 As New SaveFileDialog()
Dim csvFileContents As New System.Text.StringBuilder
[Code]....
i want to exclude the records from the 1st and last rows where should i make chages in above code
I have used VB6 for all kinds of database programming. Now I am fairly new to the vb.net. How do we read the records (rows) from a dataset and manipulate data? I want to populate a combobox or a datagrid with a recordset (in VB6 language). What is the .net equivalent of ado dataset, and how do I use it. I have tried several ways using dataadapters and dataset, etc.
I am using datarepeater on my windows form to populate records from a temp table. I want to write query to insert records for an employee in a single row rather than multiple rows. For example: I am displaying records of one month only. so i know the definite number of columns. Normally if we use select * from Temp ' it will display and i can populate in a datagrid.
I need to select all records from Table2 where there are NO records in Table1 having matches of both Col2 & Col3. For instance, Table 2 records where Table1.Col2 <> Table2.Col2 AND Table1.Col3 <> Table2.Col3.
I have this piece of code. For some reason , some records that match are not being marked as matched. I believe there is something wrong the code. Can someone plese have a look and see if there is something wrong with the MoveNext command?
Im trying to read A .CSV file into the database.Every time at exactly 100 records the code seems to stop executing.Strange thing is, that when I step through the code manually, the code DOES run to the end...and a total of 403 records are imported.So NO errors are thrown, and no weird data is present in the row at which the code stops running (which makes sense, since the code is all executed when stepped through manually)[code]
I would like to insert records a user selects from a gridview using check box column here is my code which inserts the first record then on the second interation it gives the error."The variable name '@Customer' has already been declared. Variable names must be unique within a query batch or stored procedure." [code]
I have a dataview grid where I am loading data from a sproc. I now need to loop through all of the rows and make changes to some of the cells that are binded through the datasource
I know how to loop through a GridView and extract each row using the for each loop as below, but I was looking for a easy way to loop through the datagrid and say extract the last 20 rows? Is it possible to go through in reverse order in vb.net?
For Each row As GridViewRow In InventHistoryGridView.Rows
now in my DataTable called "tablaLOGICA" i have 180.000 records as strings and later on in my program i have added 90.000 more strings in this DataTable. QUESTION..'which is the quickest way to update my "real" table in MySql? 'At the moment i make 90.000 INSERT whithin a loop, but it is so slow, it take more than half an hour !!!! is there any other way to do this INSERTs?
I am using a For Each Next type loop to read a records from a datatable and add records to a second table.Under certain circumstances, I add one or more records to the first table that I want to process.The problem is that the added record is not in the original datatable.The For Each...Next loop goes dutifully until the datatable records are processed, but the added record(s) do no get processed.How can I "refresh" the datatable and process the added records? [code]
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
I have been looking for some syntax online to help me do this, but i cannot seem to find anything. I am trying to move some rows from a table in an access database to another on a click event handler.
One of the tables names is "Basket", and the other is order.So far i have this.
I have datagridview1 which contains data and what I want to do is get the data from first selected row then carry out MyRoutine and then do the same for the next selected row until their is no data in: RW.Cells(2).Value.ToString RW.Cells(1).Value.ToString
This is what I have come up with so far: But I can't get it to move on to the next selected row once it does the first. Private Sub Button13_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button13.Click For Each RW As DataGridViewRow In DataGridView1.SelectedRows 'Send the first cell value into textbox2 and other cell value to textbox1' End Sub [Code] .....
My Application uses For...Next loops to read a spreadsheet into a DataSet and then display information from it based on the results of search conditions (search term and a date range).I'm having a problem with the data where, if I run a search that should return the first 400 rows in the spreadsheet, I'm only getting around 200 results. I know the search should return the 400 rows because I checked it in the spreadsheet before running the search.I think my problem might be caused by my date comparisons. I think the problem might be that I'm comparing String valueHere's my code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If ListBox1.Items.Count <> 0 Then : ListBox1.Items.Clear() : End If
My application is in VS2008 coded in Vb.net.I have a datagridview which is populated from Database.I have a save button on the same form that has DatagridView.My requirement is i want that all the records that are populated in DatagridView should be saved in a certain table of the database when the user clicks save.Im done with my save and Update code.What im not able to do is,im not able to increment the counter and move to the next row of datagridView when my For loop is executing after the click of Save button.Below is my Code.
For i As Integer = 0 To DGVStudRecord.RowCount - 1 My Code for Update and Save. Next
I 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"?
I choose an item from dgrpoducts which has all the products in inventory and it sends the selected items to another datagridivew called dgiselectedproducts. These are the selected items.
I'm writing a program for Employees Management and i need to automatically generate a Payroll for each one then calculate some things and save it to another table.
I know how to calculate and save. I just need to get all the ID column of all rows in my Employees table, and select each Employee ID one by one in order to calculate each payroll automatically.
How can I write a loop to run for each day in the current month and then check to see if the Dataset has a record that matches one of those days and take an action?
For Day As Integer = 1 To DaysInTheMonth For Each row In MyRows If row.Date.Day = Day Then[code]....
This generates too many rows in the table I have it building. Basically, every day gets as many rows as there are that contain data.I'm building a HTML table that gets mapped into a chart using jquery so I need a for everyday of the month.
Langauge level hours German 2 50 French 3 40 English 1 60
[code]....
I want to loop through the records based on language and other conditions and then pass the current selected record to a different function.So I have the following mixture of actual code and psudo code. I need help with converting the psudo code to actual code, please. I am finding it difficult to do so.
Here is what I have:
Private sub mainp() Dim oslcConnection As New SQLite.SQLiteConnection Dim oslcCommand As SQLite.SQLiteCommand Dim langs() As String = {"German", "French", "English"}