Visual Basic

31-May-07 18:59

can in add textboxes only in the first cell of datagridview?
I have four rows in the datagriddview.

Billypon31-May-07 22:12

Billypon

31-May-07 22:12

You should add textboxes as you adding images in the datagridview

Sonia Gupta31-May-07 22:32

31-May-07 22:32

The textboxes do not appear as blinking cursors in the textboxes at runtime ?
Thet behave like labels . even readonlky property is false.
How can i make the the cursor to blink in the textboxes at runtime?

Xandip31-May-07 23:14

Xandip

31-May-07 23:14

Of course you can do this.. just put a textbox into the grid during design time, and hide it during the form_load. write the code to make it visible, during runtime, when you click on the first column of the datagrid..

you must add the code to adjust the size of the textbox inorder to make it look like a cell in the datagrid..

The name is Sandeep

Sonia Gupta1-Jun-07 0:14

adding images in the datagridview

1-Jun-07 0:14

I am using the following code

Private Sub dg1_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dg1.CellClick<br />
        If (e.ColumnIndex = 2) Then<br />
            TextBox1.Visible = True<br />
            TextBox1.Left = 42<br />
            TextBox1.Top = 19 * (Me.dg1.CurrentCell.RowIndex + 1)<br />
            <br />
            TextBox1.Height = dg1.CurrentRow.Cells(0).Size.Height<br />
            TextBox1.Width = dg1.CurrentRow.Cells(0).Size.Width<br />
        End If<br />
    End Sub

as the row index increases , the coordinates flaws increases.

Sonia Gupta31-May-07 18:53

Re: adding images in the datagridview

31-May-07 18:53

i was trying to add an image in the datagridview
i am using the following code

Dim column As DataGridViewColumn = New DataGridViewImageColumn<br />
        column.HeaderText = "Image"<br />
        dg1.Columns.Add(column)<br />
        For count As Integer = 0 To dg1.RowCount - 1<br />
            dg1.Rows(count).Cells(2).Value = Application.StartupPath & "\untitled.jpg"<br />
        Next

I am doing right ??????????????????

Christian Graus31-May-07 20:06

Re: adding images in the datagridview

31-May-07 20:06

Is this in ASP.NET ? No, that's obviously not right ( or you wouldn't be asking... ). You'd need to put an img tag with this path into the row, otherwise you're just showing the path to the image.

Christian Graus - Microsoft MVP - C++
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Sonia Gupta31-May-07 20:16

Re: adding images in the datagridview

31-May-07 20:16

Hello Christian Sir,
I am using Window Application.I wanted to add the image in the third column of every row.I mentioned the code.Was not that right? Can u provide some rectification to show the image in the datagridview.

Christian Graus31-May-07 20:38

Detect size of error log and start a new one

31-May-07 20:38

OK, then you're really lost. It seems like every day you're working on something else, does this stuff all actually coexist in a project somewhere ?

The cell needs to contain a control which shows an image, such as a picturebox. There are articles on CP from people who would know more about this than me, but my first port of call would be to add a picture box to the cells controls collection, and put my image in that.

Psycho-^*Coder*-Extreme31-May-07 16:35

Psycho-^*Coder*-Extreme

31-May-07 16:35

In an application I'm working on I've written my own custom error log class which logs errors with the required information. What I'm wanting to do is limit the file to a certain size (yet to be determined), once it reaches that set size I want to start a new file (eg ErrorLog1.txt, ErrorLog2.txt, etc). I've done some research into this and just havent found much to help. Anyone got any ideas?

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Re: Detect size of error log and start a new one

Johan Hakkesteegt1-Jun-07 0:54

Johan Hakkesteegt

1-Jun-07 0:54

Hi,

It sounds like a reasonably easy process, and I am guessing that you were merely trying to put elegance before effectiveness when you researched the idea.
As you are talking about an error log, we may assume that you will not be writing data to the log in a continuous stream, but only then when an error occurs. (If errors occur continuously, you might want to think about changing your app so it doesn't create so many errors)
So write your code along these steps:

1. an error occurs
2. check whether the file ErrorLog1.txt exists
3. If it exists, check its size. (size can be hard coded, or you can allow the user to set the size.)
- if the size has reached the determined point, create a new file:
- check the number at the end of the existing file
- that number += 1
- concatenate the name and the new number to form the new ErrorLog file (ErrorLog2.txt)
- write the error to the new file.
4. If the size has not reached the determined point yet, write the error to the file
5. go to step 1

You can build in a margin if you want the files to specifically remain under the determined size.

Good luck,

Johan

My advice is free, and you may get what you paid for.

Re: Detect size of error log and start a new one

Psycho-^*Coder*-Extreme1-Jun-07 2:08

Psycho-^*Coder*-Extreme

1-Jun-07 2:08

John,

Thanks for the info, and yes I was looking for elegance over effectiveness. Maybe I was over-tired, hell I don't know, but somehow I overlooked the .FileSize attribute of the FileInfo class (guess when looking too hard for something you overlook the obvious).

This application does not continually write to the file, in fact through the last 5 months of development and monthly releases my file size is just a tad bit over 100k, but what I don't want is 5 years from now (or even longer) to have to sort through a 3 GB file (thought I am currently working on an Admin screen when I can load the text file contents into something like a DataGridView, ListView, or maybe my own created custom control so we don't always have to open the text file and read it).

The file size will in fact be hard coded in the application (I don't feel comfortable letting non-computer savvy people pick the file size.
Once again, thanks for the input and ideas.

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Re: Detect size of error log and start a new one

Johan Hakkesteegt1-Jun-07 3:41

Johan Hakkesteegt

1-Jun-07 3:41

Hi,

Feel free to use this bit of code to dump the contents of your log file into a listbox. (no guarantees, no warranty)

<br />
Private Sub CmdLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CmdLoad.Click<br />
If File.Exists("log.txt") = False Then File.Create("log.txt")<br />
Dim sr As StreamReader = New StreamReader("log.txt")<br />
Dim line As String<br />
LineCounter = 0<br />
Do<br />
line = sr.ReadLine()<br />
ListBox.Items.Add(line)<br />
Loop Until line Is Nothing<br />
sr.Close()<br />
End Sub<br />

and this bit to empty out only the selected items:

<br />
Private Sub CmdClearLog_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CmdClearLog.Click<br />
Dim ic As Integer<br />
Try<br />
ic = LB_Errors.SelectedItems.Count<br />
Do<br />
LB_Errors.Items.Remove(LB_Errors.SelectedItems.Item(ic - 1))<br />
ic -= 1<br />
Loop Until ic = 0<br />
Catch Ex As Exception<br />
MsgBox(Ex.Message)<br />
End Try<br />
End Sub<br />

As for "Where's the any key?"-users, you could catch that risk by hard coding a top and a bottom limit, for example with a trackbar.

Hope it helps,

Johan

My advice is free, and you may get what you paid for.

Regarding Text to speech in Hindi

jatin288231-May-07 16:01

31-May-07 16:01

I have a project to do titled
"TEXT TO SPEECH IN HINDI"

so could anyone pls guide me as to how should i start for that
pls help me out in following the right steps to start working on that

Thanks
Jatin

Sathesh Sakthivel31-May-07 16:07

Sathesh Sakthivel

31-May-07 16:07

Hey we could not able to Understand what you say.

Please be specific while you are posting the question?

Regards,

Satips.

jatin288231-May-07 17:43

31-May-07 17:43

I mean to say how should i start doing this thing
some tutorial to follow
I want to start from scratch
so guide me through the steps to be followed

Sathesh Sakthivel31-May-07 18:01

Sathesh Sakthivel

31-May-07 18:01

You have replied to CG that you have an Idea. What Idea do you have reg this.

Let me know it in detail.

Regards,

Satips.

Christian Graus31-May-07 16:27

31-May-07 16:27

Get a microphone, and record yourself saying every Hindi word.

Seriously, why have you taken a project if you have no idea how to do it ?

jatin288231-May-07 17:41

31-May-07 17:41

i have an idea how to do it
but i just wanted to know more details about it
i mean to say let me know abt some tutorial where i can read through it

Christian Graus31-May-07 18:17

31-May-07 18:17

I can't imagine there are any web tutorials on how to do this from scratch. What's your idea ?

jatin288231-May-07 18:50

31-May-07 18:50

i have used microsoft speech library for
text to speech
but that is in built feature
now i have to it in hindi

i mean it should now speak in hindi
how will i do it

Christian Graus31-May-07 20:07

31-May-07 20:07

OK, so you don't have any ideas ?

You'd have to write a new speech library, one that speaks Hindi. If the MS library doesn't support Hindi, that's about your only option.

jatin28821-Jun-07 4:50