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try the property 'scrollable'
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Nope, tried that. This property allows you to specify to have scrollbars or not to appear (automatically). I want to know when it does appear.
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in that case I would see if you can't use the controlladded event I think the treeview adds the scrollbar control to itself when needed
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ControlAdded event? Is this VB.Net? Unfortunately, I'm on vb6.
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ah it's very wel possible that it is a vb.Net event
unfortanatlly I never programmed in vb6 so I wouldn't know how hou could do this in vb6
perhaps checking the height of the control and comparing it with how many items there are visible multiplied by the itemheight property (if this exists in vb6) could help you but this will be far from perfect also will not work for horizontal bar since there is now itemwidth property (this depends on many factors like fonttype, fontsize, wheter or not the item is a subnode,...)
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Hello all I have a datagrid that i need to loop through the column called TABLE_NAME and use all the cells that end with the word "Data". ANY help is appreciated. I have included a small snippet:
Dim dt As DataTable = acc_connect.GetSchema("tables")
GridView1.DataSource = dt
GridView1.SelectAll()
For Each r As DataGridViewCell In GridView1.SelectedCells
Dim str As String = r.Value.ToString
Dim i As Integer = str.IndexOf("Data")
If Not i = -1 Then
But this in no way works, thanks in advance!!!
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Hi,
zchwllms wrote: But this in no way works
that's not informative; you should explain what it does and how that differs from
what you want, otherwise we have to guess.
There is a String.EdsWith() method that will interest you.
Luc Pattyn [Forum Guidelines] [My Articles]
this weeks tips:
- make Visual display line numbers: Tools/Options/TextEditor/...
- show exceptions with ToString() to see all information
- before you ask a question here, search CodeProject, then Google
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Yes, sorry about that, well as of right now I am getting the column heading as the value and what I is whatever is in the cell on that column.
I was looking for somthing like:
for each r as string in datagridview.column
if r.endswith("Data") then
'the rest of my code will go here
next
thanks again
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Hi,
a DataGridViewCell holds an Object, so the Value property returns that object.
All objects inherit ToString() method from class Object, it simply returns
the type string. So whatever your DGVC is actually holding, you should either
override its ToString() to return real content, or provide (and use) another
way to retrieve its representation (some classes have a GetTect method for this).
Luc Pattyn [Forum Guidelines] [My Articles]
this weeks tips:
- make Visual display line numbers: Tools/Options/TextEditor/...
- show exceptions with ToString() to see all information
- before you ask a question here, search CodeProject, then Google
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Thank you for elaborating, I am pretty new to this whole thing.
But my question is still how do I loop through these cells(only in one column) to actually get the content of the cell into a variable string. I understand the logic I am just not sure on how to actually pull the content out of the cell for usage.
thanks,
zach
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Hi,
I haven't used DataGridView myself, here is my best guess:
- DGV has a property called Rows, this holds all the rows, so you can iterate them
with a foreach (DataGridViewRow row in myDGV.Rows) {...}
- a DataGridViewRow has a property called Cells, this holds all the cells of that
row, as in one array; you can apply an index to them as in
row.Cells[i];
- with the above, you could access all the cells that belong to a single column,
provided you now the index of that column. If you have to find out that index,
well DGV has a property called Columns, this holds all the column descriptions
(not the data, just metadata).
I hope and think that would put you on track.
Luc Pattyn [Forum Guidelines] [My Articles]
this weeks tips:
- make Visual display line numbers: Tools/Options/TextEditor/...
- show exceptions with ToString() to see all information
- before you ask a question here, search CodeProject, then Google
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How about this:
Create a dataview filtering on column TABLE_NAME like %data.
Then just loop through this dataview.
Guy
You always pass failure on the way to success.
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Sounds interesting, could you say more about filtering on a column, I do not have the slightest clue as how to do this. Would it be done with SQL statement or in VB.NET code?
thanks,
Zach
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I need a way to determine whether a word (or character) is selected outside of my application or not
do we have any appropriate API function for this purpose?
A.E.K
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AFAIK that is impossible to know.
There may be several items selected in several controls all over the place,
and Windows does not know that. Selection is a matter internal to the Control
or other object that supports it.
You can interrogate the clipboard.
You could start sending CTRL/C to different controls, and watch the clipboard.
But a Control does not have to obey CTRL/C...
Luc Pattyn [Forum Guidelines] [My Articles]
this weeks tips:
- make Visual display line numbers: Tools/Options/TextEditor/...
- show exceptions with ToString() to see all information
- before you ask a question here, search CodeProject, then Google
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There's no way to tell and no API to call to tell you.
There are simply too many different controls out there handling text is so many different ways. It's entirely up to the control containing the text in question. There's no standard method anyn control uses to expose this information.
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A.E.K wrote: I need a way to determine whether a word (or character) is selected outside of my application or not
do we have any appropriate API function for this purpose?
Is the other application (2nd one) where the text is selected also a custom application? If it is you could use a standard Windows OS Message to notify your 1st application when text is selected.
Pete Soheil
DigiOz Multimedia
http://www.digioz.com
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i agreed with him and want to add some more clarification in these comments that if other application is custome application and you have the source available then you can raise an event for the selection you have made.
Hope you got the idea.
Be a part of solution, rather then be a part of problem
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Nope.
it should work every where.
thanks everybody.
A.E.K
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A.E.K wrote: Nope.
it should work every where.
thanks everybody.
That can not be easily done, and you shouldn't need to do something like that either for a typical application. Perhaps you need to reconsider your application design?
Pete Soheil
DigiOz Multimedia
http://www.digioz.com
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I have a datagridview control and all i'm wondering is if there's a way I can select all the contents (and the columns) and store in a variable
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try this
Dim arr(dgv1.RowCount * dgv1.ColumnCount - 1) As DataGridViewCell
dgv1.SelectAll()
dgv1.SelectedCells.CopyTo(arr, 0)
A.E.K
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that put it in the variable arr right? Since it's in an array, how would I output that into a textbox or something similar
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use the Value proeprty of DataGridViewCell.
A.E.K
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