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So, what's the problem with my Laptop?, is the problem with the display adapter or with the version of VS.NET?
can anyone plzzzz suggest a problem to check on it.
pssss:
i have 2 versions of VS, VS2005 on my laptop, and VS2003 on my PC,
my laptop is HP nx6110 with Intel Express Display Adapter 128 MB - running on intel pentium M processor
and my PC has ATI Radeon 9200 128 MB - running on Intel pentium 4 processor,
plzzzzzzzzzzzzzzzzz help meeeeeee
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Hey Mr.Christian Graus can i send you my source code to test it..????
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I have some grid controls on a form that are using data adaptors to fill the grid directly from the SQL Server data base. I have added an even handler on exit of the form to commit changes but the changes are not getting written back to the data base.
Here is my code -
this.speciesTableAdapter.Fill(this.markingDBDataSet3.Species);
private void MasterData_FormClosing(object sender, FormClosingEventArgs e)
{
SpeciesGrid.CommitEdit(DataGridViewDataErrorContexts.Commit);
SpeciesGrid.Update();
}
I must be missing something or I am totally on the wrong track. Any ideas?
-- modified at 18:42 Monday 22nd May, 2006
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Ok. To update the database based on changes you have made in the datagrid you must be calling the DataAdapter.Update() method. This takes two arguments: Your datatable/dataset (this will be the datasource of your grid), and (if you hand it a dataset) the name of the table.
Ex.
dAdapter.Update(somedataset, "Table");
or
dAdapter.Update(sometable);
But you do need to specify an insert command in order for this to work. If a standard insert query is fine, you can use the command builder class. So, if you are using OleDb it would be like this:
OleDbCommandBuilder cmdBuild = new OleDbCommandBuilder(dAdapter);<br />
dAdapter.Update(somedataset, "Table");
Hope that helps! 
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I am using a SqlDatatAdaptor and when I try this solution, it builds without any errors but when the update is executed, I get the following exception error -
Update requires a valid UpdateCommand when passed DataRow collection with modified rows.
This is my code -
SqlDataAdapter dAdapter = new System.Data.SqlClient.SqlDataAdapter();
dAdapter.Update(markingDBDataSet3, "Species");
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You need to include the SqlCommandBuilder to make your update command for you:
SqlDataAdapter dAdapter = new SqlDataAdapter();
SqlCommandBuilder cmdBuild = new SqlCommandBuilder(dAdapter);
dAdapter.Update(markingDBDataSet3, "Species");
Without this, the update will not work.
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I added the code as sugested -
SqlDataAdapter dAdapter = new SqlDataAdapter();
SqlCommandBuilder cmdBuild = new SqlCommandBuilder(dAdapter);
dAdapter.Update(markingDBDataSet3,"Species");
I am now getting a different error.
Error -
The DataAdapter.SelectCommand property needs to be initialized.
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Sean, you got me pointed in the right direction. I worked with one of the more experienced Windows developers here and we managed to cobble together the following which seems to be working. Evidently it needed a reference to the table adaptor and needed a select command added to the data adaptor.
Here is the code -
SqlDataAdapter dAdapter = new SqlDataAdapter();
SqlCommandBuilder cmdBuild = new SqlCommandBuilder(dAdapter);
dAdapter.SelectCommand = new SqlCommand("select * from Species");
dAdapter.SelectCommand.Connection = speciesTableAdapter.Connection;
dAdapter.Update(markingDBDataSet3,"Species");
Thank you very much for your help!
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Ohh sorry I would have told you to put a select command in when initializing the data adapter but I thought you had just left it out so you wouldnt take up to much room in your post 
Good to see you got it workin'
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Hi there,
I'm using DataGridViewCheckBoxColumn, when a check box is unchecked sometimes I get the value {} (it's not a string value) instead of false. I want to get the value false or true.
Does anybody know why do I get the value {} and how can identify this value programatically?
Thanks in advance,
Elvia
PS: Windows application in Microsoft Visual C# 2005
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Hi,
Iam using datagridview,How to add a new row to the datagrid view?
In insert button i wrote this code,
dataGridView1.Rows.Add(3);
when i run this code,it is giving the following exception
exception: rows cannot be programatically to the datagridview's collection when control is databound
In save button i wrote like this,
private void button1_Click(object sender, EventArgs e)
{da.Update(ds,"emp");
}
It is giving the following exception:
Update requires a valid InsertCommand when passed DataRow collection with new rows.
Please help me.
Thanks In Advance
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You need an introduction. Try this article[^]
"What classes are you using ? You shouldn't call stuff if you have no idea what it does"
Christian Graus in the C# forum
led mike
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Is there a way to access the resources in referenced assemblies ?
e.g. <asp:Label ID="Label2" runat="server" Text="<%$ Resources:MyResources, MyText %>"></asp:Label>
but with a MyResources assembly that was referenced instead of resources in the global_resources folder
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If i have this codesnippet and the specified url doesn't exist.
How do i catch the webexception?
WebClient laddaner = new WebClient();
laddaner.DownloadStringCompleted += new DownloadStringCompletedEventHandler(laddaner_DownloadStringCompleted);
laddaner.DownloadStringAsync(new Uri("http://thisurldoesnotexist.com"));
Right now i get a TargetInvokationException thrown at Application.Run(new Form1()); in Program.cs (the program is a simple Form-app)
This doesn't work:
WebClient laddaner = new WebClient();
laddaner.DownloadStringCompleted += new DownloadStringCompletedEventHandler(laddaner_DownloadStringCompleted);
try
{
laddaner.DownloadStringAsync(new Uri("http://thisurldoesnotexist.com"));
}
catch(WebException)
{
MessageBox.Show("Error!");
}
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try using WebClient.OpenReadAsync() and check the OpenReadCompletedEventArgs.Error in the handler for OpenReadCompleted event.
"What classes are you using ? You shouldn't call stuff if you have no idea what it does"
Christian Graus in the C# forum
led mike
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Works perfekt, thanks alot 
void blabla()
{
WebClient laddaner = new WebClient();
laddaner.OpenReadCompleted += new OpenReadCompletedEventHandler(laddaner_OpenReadCompleted);
laddaner.OpenReadAsync(new Uri("http://adress.com"));
}
void laddaner_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
if (e.Error.Message == null)
{
StreamReader sr = new StreamReader(e.Result);
string s = sr.ReadToEnd();
}
else
MessageBox.Show(e.Error.Message);
}
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I have 2 forms.
disable some buttons;
form1 call some bool function on form2(via a delegate).
this function will print some stuff on a textbox in form1 via a cross thread handler.
if the function return true then enable the buttons.
simple enough. but vs2005 give me this error:
"Cross-thread operation not valid: Control 'button1' accessed from a thread other than the thread it was created on."
Does anyone knows what is going here? And how i can solve it?
Donkaiser
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oh one more thing my program is in C# so i guess if i post it in this forum it may help.
Donkaiser
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see: System.Windows.Forms.Control.Invoke() method and BeginInvoke
"What classes are you using ? You shouldn't call stuff if you have no idea what it does"
Christian Graus in the C# forum
led mike
-- modified at 14:22 Monday 22nd May, 2006
Also see the forum thread about 5 positions below this one on the same subject.
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well i just after wanna do like
button1.enable = false;
if(somedelegate funcOnform2())
{
button1.enable = true;
}
and the IDE gave me the error at button1.enable = true;
Donkaiser
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donkaiser wrote: well i just after wanna do like
Whatever. good luck
"What classes are you using ? You shouldn't call stuff if you have no idea what it does"
Christian Graus in the C# forum
led mike
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You can only access Form1 on the thread it was created on. You can only access Form2 on the thread it was created on. And so on. This is the reason you're getting an error.
In order to solve this, you need to actually perform the work on the correct thread. To do this, you can use form.Invoke, which will bring the work onto the correct thread for that form.
ThreadStart functionThatChangesEnabledState = delegate()
{
form1.Enabled = true;
};
form1.Invoke(functionThatChangesEnabledState);
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Islamic Domination: Coming to a Jewish state near you!
The apostle Paul, modernly speaking: Epistles of Paul
Judah Himango
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hi Judah,
Do i need to create a new instant of my form1? because VS2005 throws me this error:
"Object reference not set to an instance of an object." at form1.Invoke(functionThatChangesEnabledState);
Donkaiser
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Never mind, I solved it by putting it on form1 instead. and inside the ThreadStart i perform watever on the controls.
Thx alot. I hope this will help other people.
Donkaiser
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