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hi, every one.
I was trying to change an object value of a listbox, I've tried these lines of codes:
listbox1.Text = "hello";
listbox1.SelectedItem = "hello";
but this didn't change the content of the object selected in the listbox, although
that in MSDN they mentioned that these properties have both set and get assessors.
I come up with a solution, remove the object at a specific index using RemovAt(), and
then inserting a new object at the same index using Insert().
but I do want to know if there is any direct way(function, property) to change an object
in listbox.
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Hi, you can do things such as:
lb.Items[2]="new text for line 2";
lb.Items[lb.SelectedIndex]="new text for the selected line";
Luc Pattyn
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thanks
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i have a problem to draw the graphic line
i want to draw a line that the middle of this line have text ( that enter from user )
is there any code that can help me ?
With thanks
MHF
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Use the Graphics.MeasureString method to get the width of the text when drawn with a specific font. Use this value to calculate the starting point passed to the Graphics.DrawString method, so that the text will be drawn in the middle of your line.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Dear all,
I have the following question, and I would highly appreciate it if anyone of you could point e in the right direction. I have this DataGridView, which is filled somewhere along the line. I want to export the values of each individual column and row to a global integer in order to use this value a bit further up in my application. I dreamed up something like this :
public static string NAME;
And inside the methode :
NAME = dataGridView2.Rows[dataGridView2.CurrentCell.RowIndex].Cells["werkAantalDataGridViewTextBoxColumn"].Value.ToString();
or if I want to dump the value to a textbox :
this.txt1.Text = dataGridView2.Rows[dataGridView2.CurrentCell.RowIndex].Cells["werkAantalDataGridViewTextBoxColumn"].Value.ToString();
This works, until I have multiple values in my columns. I would like to display all of the values in the column or row. How can I tell the program to move to the next column or row, grab the value and store it somewhere.
Any help would be kindly appreciated.
Cheers
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There are many ways this can be accomplished, all depending on what classes you're using. Typically it's better to enumerate the backend data store, instead of its graphical representation. If you bound your DataGridView to a DataSet, for example, there are quite a few ways - including using basic SQL syntax with some amount of aggregation support that might help you with, say, a numerical sum - to enumerate rows and columns. I would recommend that approach. You can even generically enumerate the backend data store - be it a DataSet or even an object array of some type - by using a currency manager. Below is one example that depends on binding to a DataSet. You could use a PropertyManager for objects in an array in very much the same way. The could could be branched to support both.
CurrencyManager cm = (CurrencyManager)dataGridView1.BindingContext[dataGridView1.DataSource, dataGridView1.DataMember];
StringBuilder sb = new StringBuilder();
foreach (DataRowView rowView in (DataView)cm.List)
{
sb.Append(rowView["werkAantalDataGridViewTextBoxColumn"].ToString());
sb.Append(", ");
}
string aggregate = sb.ToString();I encourage you to explore the member documentation for the DataGridView for more ways to enumerate the data store, both by using the DataGridView class members and getting the underlying data store to enumerate.
This posting is provided "AS IS" with no warranties, and confers no rights.
Software Design Engineer
Developer Division Customer Product-lifecycle Experience
Microsoft
[My Articles] [My Blog]
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Hello Guys,
how can we build a virtual machine to convert cobol code to dot net.???
once the migration is complete the dot net code should perform all the business functionality currently done by the cobol code.or is there any way i can compile it to .DLL so that i can use in my .NET code???
Or any good suggetions for that....
Please...share
Regards ![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif) ,
nishu
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You would not create a virtual machine, which houses OSs, to convert COBOL code to .NET. You would have to write you own program, if one does not already exist, that will convert COBOL code to .NET.
As for having a COBOL dll, I have no idea. If the dll produced is a standard windows dll then you should be able to use DllImport to extract specific methods and use them in your .NET applications. You may even consider a dll wrapper, if that would be better suited.
Regards,
Thomas Stockwell
Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.
Visit my homepage Oracle Studios[ ^]
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Have you looked at Fujitsu Cobol.NET?
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Thanks guys...
Ya i visited that one..
nishu
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Hi everyone,
I'm using a TextBox as an activity log for some worker threads. I'd like to automatically scroll down to the end whenever I append text to the TextBox.
Anyone know how to do this? Looking at the documentation, I can't even figure how to get a handle on the scrollbar.
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Try the ScrollToCaret method.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Thanks, ScrollToCaret is what I was looking for.
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I use TopIndex
for an example, have a look at method log() in file MainForm.cs of my Skoban article[^]
Luc Pattyn
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Hi !
i m using opensmtp DLL and by using its class MailMessage i m sending the email.But its method CC takes array list ....but i m unbale to use it.
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You could try something like
using System.Collections;
ArrayList ccList=new ArrayList();
ccList.Add("friend@company.com");
mail.CC(ccList);
Luc Pattyn
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I have so many client side validations and same controls r used in .cs file.
if i use javascript asp controls doesnt supprot.
Using view state can i validate on client side.... as he loads the page.
thank u.
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I have so many client side validations and same controls r used in .cs file.
if i use javascript asp controls doesnt supprot.
Could you please tell us more details? I'm not very sure what you meant by "Javascript ASP Controls".
Using view state can i validate on client side....
AFAIK, No. ViewState is not for client-side validation.
as he loads the page.
he? Who?
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i need small and short materials that told me me how to make simple report and how to reterive data from dataset or stored procedures or view and the data is changed depending on the parameter
thanks alot
ma_refay
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i need to know some details about theses pharses
what it's job?
when use it ?
why use it?
**********************************
1- pattrns
2- delegates
3-indexers
4-assembly
ma_refay
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MSDN[^]
Google[^]
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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hi every one,
well I wanna validate the data entered in a cell of a DataGridView of a WIndows Application C# 2.0.
I wanted the data to be just numbers u know, no negative numbers or special characters.
I coded some thin like this
private void DataGridView1_KeyPress(object sender, KeyPressEventArgs e)<br />
{<br />
string _allowedkeychars = "1234567890";<br />
if (_allowedkeychars.IndexOf(e.KeyChar) < 0) <br />
{<br />
e.Handled = true;<br />
return;<br />
}<br />
}
but it doesnt disallow the entry of a minus sign or anything other than digits u know. Furthermore, it doesnt give u anything to get to the cell in which the user is editing. So how can I do that, plz help
thanks in advance
Rocky
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