C# Discussion Boards - CodeProject

How to install Microsoft.mshtml.dll in GAC

svt gdwl4-Jun-09 22:28

4-Jun-09 22:28

This is the error I was getting while installing a in-process dll (BHO) setup which is made in Vs2005 using c#
"could not load file or assembly 'Microsoft.mshtml, version=7.0.3300.0,Culture=neutral,PublicKey=b03f5f7f11d50a3a' or one of its dependencies. The System cannot find the file specified."

For this, I googled and found that Microsoft.mshtml should be installed in GAC or should be available in IE installation folder.
I tried the second one, but still the dll doesnot gets injected?
Anyone can suggest something to solve this?

Re: How to install Microsoft.mshtml.dll in GAC

Christian Graus4-Jun-09 23:05

Christian Graus

4-Jun-09 23:05

Is it even a .NET DLL ?

Christian Graus

Driven to the arms of OSX by Vista.

Please read this[^] if you don't like the answer I gave to your question.

"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.

WMI

arkiboys4-Jun-09 22:21

arkiboys

4-Jun-09 22:21

Hi,
I have create a simple vbscript called vbscriptSample.vbs
When you double click it, you see the message Hello.
This script is saved in the local machine i.e. c:\work\vbscriptSample.vbs
I can call this script using:

System.Diagnostics.Process.Start(@"c:\work\vbscriptsample.vbs");

Question:
I am developing a .net application to trigger this local script but to run it against a network machine i.e. MachineB
So when you run it from my local machine, then the message Hello appears on the MachineB
I believe this is to do with WMI
So, this is what I have. It does not give an error but the message hello does not appear.

try
{
ManagementPath p = new ManagementPath(@"\\MachineB\root\cimv2:Win32_process");
ManagementClass m = new ManagementClass(p);

m.InvokeMethod("Create", new object[] {@"\\MachineB\c$\work\vbscriptsample.vbs"});
}
catch (ManagementException err)
{
MessageBox.Show("An error occurred while trying to execute the WMI method: " + err.Message);
}
catch (UnauthorizedAccessException unauthorizedErr)
{
MessageBox.Show("Connection error (user name or password might be incorrect): " + unauthorizedErr.Message);
}

Any thoughts please?

Thanks

Re: WMI

Pete O'Hanlon4-Jun-09 23:05

Pete O'Hanlon

4-Jun-09 23:05

Have a look at this[^].

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: WMI

arkiboys4-Jun-09 23:49

arkiboys

4-Jun-09 23:49

Yes, I have been looking at this site but not sure how to sort out the settings Frown | :-(

Thanks

Re: WMI

arkiboys5-Jun-09 0:31

arkiboys

5-Jun-09 0:31

I have now been through the suggested settings.
Still get Access Denied.
I can however ping the remote machine but can not use the code.
Here is the code.
Not sure why I get the Access Denied error on th einvoke line.
Any thought please?
Thanks

string stringCommandLine = "notepad.exe";

System.Management.ManagementOperationObserver observer = new System.Management.ManagementOperationObserver();
System.Management.ConnectionOptions conn = new System.Management.ConnectionOptions();

conn.Impersonation = ImpersonationLevel.Impersonate;
conn.EnablePrivileges=true;
conn.Authentication=AuthenticationLevel.Default;

System.Management.ManagementScope ms = new System.Management.ManagementScope("\\\\" + "11.3.432.76" + "\\root\\cimv2", conn);

ms.Connect();

System.Management.ManagementPath path = new System.Management.ManagementPath("Win32_Process");

System.Management.ManagementClass processClass = new System.Management.ManagementClass(ms, path, null);

object[] methodArgs = { stringCommandLine, null, null, 0 };

processClass.InvokeMethod(observer, "Create", methodArgs);

User Control

User 62554644-Jun-09 21:14

User 6255464

4-Jun-09 21:14

Can a form be minimized and maximized by a user control like Button or something else?

modified 6-Jun-21 21:01pm.

Re: User Control

Christian Graus4-Jun-09 21:37

Christian Graus

4-Jun-09 21:37

Of course it can. It can ask for it's parent form, or it can fire a delegate and the main form can consume it and do the work.

Re: User Control

User 62554645-Jun-09 19:35

User 6255464

5-Jun-09 19:35

I am still not able to understand if you can send me some code-bytes to add help.

modified 6-Jun-21 21:01pm.

non selectable cells/columns in datagridview

Otex4-Jun-09 21:01

Otex

4-Jun-09 21:01

I have a datagridview with 3 columns and I would like to have the cells in 2 first columns to not be selectable in the form but the cells in the 3rd column should be selectable.

Any help welcome.

Thanks

Re: non selectable cells/columns in datagridview

dan!sh 4-Jun-09 23:12

dan!sh

4-Jun-09 23:12

In the CellStateChanged event, check for the column index of the cell and if it 0 or 1 set Selected property to false.

जय हिंद

dataGrid SelectedIndexChanged Method not available in Compact Framework

Paulo Mitchell4-Jun-09 20:27

Paulo Mitchell

4-Jun-09 20:27

I have an application running on a PDA that currently uses the OnClick Event of a DataGrid to perfortm some functionality. I would like to have the same functionality run when the current row of my DataGrid is highlighted (by the user scrolling ro it instead of clicking on it). The method to use would seem to be OnSelectedIndexChanged but this does not seem to be available in the Compact Framework (3.5). I The OnGotFocus doesn't seem to be suitable either (I guesss that this is because it applies to the DataGrid itself and not the row). Can anyone suggest how I can get this to work. Note that I only want the event to fire when the user moves to the row and not when the grid is populated.

Thanks

Re: dataGrid SelectedIndexChanged Method not available in Compact Framework

MickCurley5-Jun-09 0:16

MickCurley

5-Jun-09 0:16

Just use the Mouse or Click Events exposed by the datagrid.
and get its CurrentRowIndex. You may have to bind the datagrid datasource using the CurrencyManager.
Then just build a DataRowView from it.
I'm not sure if this is what you are asking.

BTW. you should post this in Mobile Development.

Regards
M Curley.

Smile | :)

Re: dataGrid SelectedIndexChanged Method not available in Compact Framework

Paulo Mitchell5-Jun-09 3:18

Paulo Mitchell

5-Jun-09 3:18

The problem is that I will not be clicking on the grid so the onClick event won't fire. I will just be using the button thing at the bottom of the PDA ro scroll down the list. I was looking for an event that would fire when the row was highlighted. The SelectedIndexChanged looked like the one for me but that doesn't seem to be available in the Compact Framework.

I will post this again on the Mobile Development board and make my question a bit clearer. Thanks for your reply anyway.

Re: dataGrid SelectedIndexChanged Method not available in Compact Framework

MickCurley5-Jun-09 4:05

MickCurley

5-Jun-09 4:05

Create an integer variable.
Then load the datagrid and select the first row by using

dataGrid.Select(0)

Then capture the up and down keys on the form and increment or decrement
this variable and pass this to the dataGrid

dataGrid.Select(your_variable_here)

Would this not achieve what you want to do?

Regards
Mick Curley

Smile | :)

BHO not gets injected?

svt gdwl4-Jun-09 20:19

svt gdwl

4-Jun-09 20:19

I had a bho application developed in Vs2005 c#, I had made an msi setup, when I was trying to install

the setup, it is successfully getting installed, but the dll does not gets injected in the registry.
Why?
The registry path is "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Browser Helper Objects"

But this is succesfully injected in other Pc's
The .Net framework2.0 is present in all PC's

Code for registering and unregistering:

public static string BHOKEYNAME = "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Browser

Helper Objects";

[ComRegisterFunction]
public static void RegisterBHO(Type type)
{
RegistryKey key = Registry.LocalMachine.OpenSubKey(BHOKEYNAME, true);
if (key == null)
{
key = Registry.LocalMachine.CreateSubKey(BHOKEYNAME);
}

string guidString = type.GUID.ToString("B");
RegistryKey bhoKey = key.OpenSubKey(guidString, true);

if (bhoKey == null)
{
bhoKey = key.CreateSubKey(guidString);
}

// NoExplorer:dword = 1 prevents the BHO to be loaded by Explorer
string _name = "NoExplorer";
object _value = (object)1;
bhoKey.SetValue(_name, _value);
key.Close();
bhoKey.Close();
}

[ComUnregisterFunction]
public static void UnregisterBHO(Type type)
{
RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(BHOKEYNAME, true);
string guid = type.GUID.ToString("B");

if (registryKey != null)
registryKey.DeleteSubKey(guid, false);
}

In some PC's the dll gets registered and in some PC's dll doe not gets registered

This is the error occured during installation

svt gdwl4-Jun-09 21:14

svt gdwl

4-Jun-09 21:14

could not load file or assembly 'Microsoft.mshtml, version=7.0.3300.0,Culture=neutral,PublicKey=b03f5f7f11d50a3a' or one of its dependencies. The System cannot find the file specified.

Equivalent C# 2.0 code

Ankit Rajpoot4-Jun-09 18:56

Ankit Rajpoot

4-Jun-09 18:56

I cannot figure out how to translate the following line of code:

int maxMagicBytesLength = imageFormatDecoders.Keys.OrderByDescending(x => x.Length).First().Length;

into equivalent .Net 2.0 (C# 2.0) code.

Here's the declaration of the imageFormatDecoders dictionary:

private static Dictionary<byte[], Func<BinaryReader, Size>> imageFormatDecoders = new Dictionary<byte[], Func<BinaryReader, Size>>()
       {
           { new byte[] { 0x42, 0x4D }, DecodeBitmap },
           { new byte[] { 0x47, 0x49, 0x46, 0x38, 0x37, 0x61 }, DecodeGif },
           { new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61 }, DecodeGif },
           { new byte[] { 0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A }, DecodePng },
           { new byte[] { 0xff, 0xd8 }, DecodeJfif },
       };

As my rest of the application is .net 2.0. I just can't figure out the use of the OrderByDescending() method. I've not worked in C# 3.0 or later versions. Please help me.

Thanks in advance.

Excuse me for buttin' in, but I'm interrupt driven.

Re: Equivalent C# 2.0 code

Christian Graus4-Jun-09 21:40

Christian Graus

4-Jun-09 21:40

Ankit Rajpoot wrote:
OrderByDescending(x => x.Length).First().Length;

This code orders the collection from highest to lowest, based on the length, then grabs the first object. You could just iterate over the objects, and store the highest length.

How to type special character such as √ ,Π in C#?

tannghia4-Jun-09 17:19

tannghia

4-Jun-09 17:19

I want to type the special characters in C#.I don't know how to do that?Please help me.Thanks alot!!!!!

Re: How to type special character such as √ ,Π in C#?

Christian Graus4-Jun-09 17:32

Christian Graus

4-Jun-09 17:32

Do you mean how do you type them into the IDE ? The same way you did, you get them and paste them. There's a character map that gives you access.

Autoscroll DataGridview Control

Member 20251764-Jun-09 16:07

Member 2025176

4-Jun-09 16:07

Greeting,
I use a datagridview control in my form(C#.net 2005) to monitor some data received.
I want the datagridview has autoscroll to show recent data received for the user.
Normally the user should scroll the datagridview
Regards

Re: Autoscroll DataGridview Control

Niladri_Biswas4-Jun-09 16:25

Niladri_Biswas

4-Jun-09 16:25

It can be achieved by setting the overflow style to scroll of the div tag.

<div style="overflow:scroll;width:40%;height:40%">

e.g.

The grid view in the .aspx is like this

<div style="overflow:scroll;width:30%;">
      <asp:GridView ID="gvDetail" runat="server" AutoGenerateColumns="False" 
            HeaderStyle-BackColor="gray" AlternatingRowStyle-BackColor="GreenYellow "
            BackColor="white" BorderColor="blue" BorderStyle="None" Width="80%">
        <Columns> 
        
        <asp:BoundField DataField="UserId" HeaderText="User Id">
        <ItemStyle HorizontalAlign="Left" Width="80%" />
        </asp:BoundField>
        
        <asp:BoundField DataField="Name" HeaderText="User Name">
        <ItemStyle HorizontalAlign="Left" Width="80%" />
        </asp:BoundField>
        
        
        <asp:BoundField DataField="Age" HeaderText="User Age">
        <ItemStyle HorizontalAlign="Left" Width="40%" />
        </asp:BoundField>
        
        <asp:BoundField DataField="Address" HeaderText="User Address">
        <HeaderStyle Wrap="true"></HeaderStyle>
        
        <ItemStyle HorizontalAlign="Left" Width="10%" Wrap="true" />
        </asp:BoundField>
        
         <asp:BoundField DataField="Sex" HeaderText="User Sex">
        <ItemStyle HorizontalAlign="Left" Width="10%" />
        </asp:BoundField>
        
        <asp:BoundField DataField="DOB" HeaderText="User DOB">
        <ItemStyle HorizontalAlign="Left" Width="10%" />
        </asp:BoundField>
        
        <asp:BoundField DataField="Year" HeaderText="User Year">
        <ItemStyle HorizontalAlign="Left" Width="10%" />
        </asp:BoundField>
        </Columns> 
        </asp:GridView>
    </div>

I have used a datatable as the grid source and bind to the grid in the Page_Load event

DataTable dtSource = new DataTable();

        #region Data Table Creation

        dtSource.Columns.Add("UserId");

        dtSource.Columns.Add("Name");

        dtSource.Columns.Add("Age");

        dtSource.Columns.Add("Address");

        dtSource.Columns.Add("Sex");

        dtSource.Columns.Add("DOB");

        dtSource.Columns.Add("Year");

        #endregion

        #region Add Rows
        dtSource.Rows.Add("1", "nil1", "23", "aaaayyyyy", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("2", "nil2", "23", "aaaa", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("3", "nil3", "23", "aaaa", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("4", "nil4", "23", "aaaa", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("5", "nil5", "23", "aaaa9999", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("6", "nil6", "23", "aaaa", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("7", "nil7", "23", "aaaa", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("8", "nil8", "23", "aaaa", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("9", "nil9", "23", "aaaa", "male", "29/12/3456", "2345");
        dtSource.Rows.Add("10", "nil10", "23", "aaaa", "male", "29/12/3456", "2345");
        #endregion

        gvDetail.DataSource = dtSource;
        gvDetail.DataBind();

Hope this helps
Smile | :)

Niladri Biswas

Re: Autoscroll DataGridview Control

Christian Graus4-Jun-09 16:26

Christian Graus

4-Jun-09 16:26

This is not the ASP.NET forum.

Re: Autoscroll DataGridview Control

Christian Graus4-Jun-09 16:25

Christian Graus

4-Jun-09 16:25

Weird. I googled and got a ton of hits like this one:

http://stackoverflow.com/questions/378330/how-can-i-set-the-position-of-my-datagrid-scrollbar-in-my-winforms-app[^]

Is google broken where you live ?

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