I have a program that searches a textfile for whatever I wrote in the textbox. If he finds it I want it to insert into label1 the text that's on the same row as the word I searched for but only the sentence between column 2 and 14 on that row.
View 2 Replies
I have textbox showing the path which read from txt file
Inside Txtfile look like this
[code]...
And the textbox will show the path C:Hello
Whatever i changed in txtfile the textbox will show the path from txtfile
But now i want to edit from textbox , and the textfile also change.
i need to extract a part of a given textfile, which is located between a start character pattern and a end character pattern, e.g.:
this is my textfile
[start]
and this i want to extract
[code]....
I have a .txt file, with five columns - each column is seperated by a space " "
What I'm trying to do is, 1, Add column headers and 2, align the columns to make them look presentable.
For the first part all I know is how to append lines to a text file, my problem is that whenever I append to the textfile it always gets appended to the bottom.
Using SW As New IO.StreamWriter("d:\temp\test.txt", True)
SW.WriteLine("The Headers Should Go Here")
End Using
How would I append to the top of the textfile?
It seems that on clicking datagridview column header, the column will be automatically sorted based on the column type. I have a column showing some numbers. If column type is string, it sorts "1","20","3" into "1","20","3". If column type is double, it sorts into "1","3","20" which is the result that I want. However, there might be some erros in the numbers and error messages(text) will show in the cell instead of numbers. So I cannot set the column type as double. I want to ignore these error messages and sort all the numbers. How can I do this?
Also, I need to add some background colors to different rows in datagridview. So in the column header click event, I call the bkgColor Sub to achieve this. My question is that how can I override the sorting method in this event?
Private Sub DataGridView1_ColumnHeaderMouseClick(sender As Object, e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView1.ColumnHeaderMouseClick
Try
[code]....
Masters of the visual basic arts, I, a lowly noob, would just like to ask for your wisdom (and mercy). For my program needs to determine if the data grid view has any content because if that certain datagridview doesn't contain anything, then I would disable a couple of functions for the program.
View 2 RepliesI have to create a textbox which will list down one column of datas from textfile which is separate by delimiters.But as I have to filter alt.Row from the text file, what can i do?
View 9 RepliesI am wondering if there is a way i can check if the listview header content is greater than the column conent if so autoresize based on that if not then resize by the column content.
View 2 Repliesi have windows form datagridview that is already populated with data, what i want to achieve is to count cells with particular value in the grid.
here is what i have done so far;
Dim cellvaluescount As Integer = 0
For Each cell As DataGridViewCell In recordGrid.CurrentRow.Cells
If cell.Value.ToString = "Absent" Then 'if cell value is Absent
[Code]....
A ListView Column's with is set to -1 meaning its width is automatically set the width of the widest cell text in the column. I need the width automatcally set but I'd like to know the actual width of the column.
View 1 RepliesI have a listview set up in Details View and I run a ascending/descending sort routine on the appropriate column when the user clicks one of the column headers.However, when I switch companies and reload the listview with new information, for some reason the event fires and I get an indexoutofrange exception as I believe that the information has not yet loaded when this fires.The e.Column property is set to that of the previous column which I clicked even though I have clicked nothing.
View 3 RepliesI am trying to create a textfile and write some lines into the textfile. However, the code that i am using can only write when the textfile is already created in the directory.
For this case, can i actually allow my script to search if a textfile is being created, if not create a textfile ???
Dim pathdir As String = "C:workingdir est.txt"
If System.IO.File.Exists(pathdir) = True Then
Dim objWriter As New StreamWriter(pathdir)
[code].....
what is the use of adding new columns to datagrid view? [code]if we can't add / update these columns to databse ?
View 1 RepliesHow can i get a view that "WinRar", "7zip", "File Explorer", or even u can get a folder to show you such a view Column...
So how can i get a column view in vb.net, to show contents of a folder...
Dim ColumnView as new view.column
'obviuosly not a real code
How to take column sum at last row of datagrid view.
View 1 RepliesSimple question, I have an application and dependant on whether you are in the administration system or on the public website I want to show different results. Example: in the database for a news story in the administration I may set the column value 'showonsite' to false. So I would like this to show in the administration panel only and not on the live site.
My question is, because I require the same information just with the only one column change, live site to only show true values and administration to show both. What is the most effective way of achieving this without copy paste of code?
i hav addded 2 combbox colomns into datagridview. i need to changed one combobx cell and need to get the value for second combobx colomn.
View 2 RepliesI need is to sum the value of the column 2nd the grand total must be done[code]...
View 2 Repliesi want to know how can i multiply values in two column and assign it to another column in datagrid view. i am using vs 2008 and mysql db.
View 2 RepliesI have a gridview which automatically adjusts with the dataset but i want to adjust he size a bit
can any one tell me how to set the column size to a fixed size
Im trying my ListView allow type it in one row in one column. Like instead of using a button and textbox. I want the user to be able to click directly on a row in a specific column and type in what they want to type it.
View 1 RepliesIn Window Form ListView, I add columns dynamically, but I got an extra column. How to remove it? Which property can it be set?
View 1 RepliesI'm trying to figure out how to set the index of a combobox column in a datagrid view when I load it from SQL Server. The combobox has a string in the text field and an index in the value field, and I want to set the selected index to match the value to an ID in the row from SQL. Not really sure how to bind it that way.
View 9 Replieshow can i show all column names of a table in List view.Like table name is "WO"
Wo_no
T_Date
Emp_id
I use a datagrid view in which i have a combobox column in the following order
SlNo TextBox
Item Name ComboBox
Qty Textbox
[Code].....
is there a way to hide a column i a listview? I know that theres a remove but it would be a pain to remake it when the user wants to bring back the column
View 1 RepliesI have seen multiple examples on google and on these forums about how to do this. It seems there are two approaches:
1 - Add the column directly to the DGV and populate it
2 - Add the column to the underlying dataset
[Code]...
I want to bind two dynamic column's check box in one grid view like category column have some types and sub category have some types.. I should bind that two fields dynamic check box's with in a one grid view..how to do it.
View 1 RepliesI want to know how to create unbound column in data grid view and use that column to display the sum of two fields.
View 5 RepliesI wonder how can I extract numerical data from a column of a list view and sum every and show in a label?
View 1 Replies
