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Just make a custom control to do it for you. Not that tough.
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
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Hi,
Im using C# and MS Access,
I was wondering if someone could tell me how to store an object of a class into the database, with an sql query.
My class is variable length so i cant separate its members into columns.
class Item
{
string name;
int id;
ArrayList values = new ArrayList();
}
Item i;
I need to sstore an object 'i' into the database.. can anyone help me?
I tried to find out a way to serialize, because i've done it before in php, just wondering if it can be done in that way in c#. If theres another way, do let me know about it..
Thanks,
Carl
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You can convert an instance of Item class to byte array and store it in database in blob field
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hi.. i tried to do this with th ebinary formatter, but it gives an error
Type 'Billing_Module.Bill' in Assembly 'Billing Module, Version=1.0.2924.30808, Culture=neutral, PublicKeyToken=null' is not marked as serializable.
MemoryStream fs = new MemoryStream();
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(fs, (object)newBill);
fs.Close();
aConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+path);
string queryCommand= "insert into BillHistory values ("+newBill.billNumber.ToString()+","+fs.ToString()+")";
can someone help me?
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You can make your class serializable by applying Serializable[^] Attribute
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i want to sort the DataGridView...
i dont want to sort first row of the DataGridView.. i just want to sort only from the second row..
whenever i click the header the DataGridview should get sorted only from the second row, the first row should not get sorted
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I created a system tray icon & attach Context menu to it,
Now on this i am opening some forms.
Suppose there is menu item "Open" & it opens a form,
now when form is opened & if user click again on "Open" it opens
again, i.e it doesnot focus the same opened one, instead open new instance.
So, How to rectify this.
what if i used mnuItem.checked property to solve the problem?
And plz tell me other ways to do this, if this is one 
Thanks in advance to all.
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You need to keep the forms object somewhere, and check it's IsDisposed property before creating new Form instance. If it is not Disposed, use BringToFront() to give focus to that form. If it is disposed, create new instance and store it.
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N a v a n e e t h wrote: check it's IsDisposed property
I think(not sure) dispose method handle this part, or when we closes the form it get called?
a) Now how can i ues this property?
Do i have to use the click event of menuItem.
N a v a n e e t h wrote: You need to keep the forms object somewhere
b) Not clear?. what do u mean by this, as i am creating object of form, on the context menu form. How i keep the form object somwhere?
c) What about the checked property?
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humdumof wrote: or when we closes the form it get called?
When the form is closed, Disposed property will be set to true. If form is active, it will be false.
humdumof wrote: Not clear?. what do u mean by this, as i am creating object of form, on the context menu form. How i keep the form object somwhere?
Declare an ArrayList instance as public in the class. In the context menu click, check ArrayList has any form instances. If yes check it's IsDisposed property. If it's disposed, created new instance and add that to array list. If not disposed, cast it to form and call BringToFront() method.
Hope it helps.
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You could try using mutex to check if an instance of the program is already open or not..
Sorry i cant help you too much with mutex, however google and msdn have a lot of articles about it.
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Use ShowDialog() instead of Show()
Becoming Programmer...
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hi
My aim is to delete a paricular array element and sort it
example
int[] array1 = new int[5];
array1[0] = 1;
array1[1] = 2;
array1[2] = 3;
array1[3] = 4;
array1[4] = 5;
now i want to delete the array[2] element and bring the array it the order
1245
plz tell me how to do this
regards
sindhu tiwari
Always Innovative
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Why don't you use an ArrayList ?
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sir if u dont mind plz tell me in brief...
sindhu tiwari
its me sid
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ArrayList is a collection class which can hold object types. You can use that . It provides built-in support for removing and sorting.
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ArrayList array1 = new ArrayList();
array1.Add(1);
array1.Add(2);
array1.Add(3);
array1.Add(4);
array1.Add(5);
now if you delete any element then just call array1.Sort()
Becoming Programmer...
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You can't delete items from an array. The size of an array can't be changed.
Use a list instead:
List<int> list1 = new List<int>();
list1.Add(1);
list1.Add(2);
list1.Add(3);
list1.Add(4);
list1.Add(5);
list1.RemoveAt(2);
The list now contains 1, 2, 4, 5.
There is also a Sort method, if you for example want to add an item and sort:
list1.Add(2);
list1.Sort();
The list now contains 1, 2, 2, 4, 5.
Experience is the sum of all the mistakes you have done.
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Hi
Sorry to paste vb code instead of c# code.
Please help me. How to add rows dyanamically in c#, when i am clicking addbtn it shows only one row. How can add more than 2 rows. Plz help me.
laxmi
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What are you adding rows to? If you want to add more then one row then handle the button click event and add as many rows as you wish
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Thank u for your suggestion. But when i am adding rows to table dynamically, it refresh the page and previous data gone. how can add more rows to a table without refreshing page.
Please Help me.
laxmi
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Laxmi R wrote: But when i am adding rows to table dynamically, it refresh the page and previous data gone.
ASP.NET ? This is C# forum.
Laxmi R wrote: how can add more rows to a table without refreshing page.
You could use AJAX for this.
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Thank You for your reply. Please give me example code. Plz help me.
Thanks in advance.
laxmi
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Laxmi R wrote: Please give me example code. Plz help me.
If you are using ASP.NET 2.0, try AJAX toolkit. It's good one and easy way to implement AJAX. Put your table and button inside updatepanel control.
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hi all
can anyone have this dll file CrystalDecisions.ReportAppServer.ClientDoc.dll ,please do share it with me or provide me the link where i can get this dll.
pintoo
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