Comments by code4Better (Top 50 by date)

Sorry if i confused you. Basically what my question was
here I am calling SomeMethod() multiple ways as shown

1. rc.SomeMethod(x=>x.Name.StartsWith("F"));
2. rc.SomeMethod(x => x.Name.Equals("Cindrella"));
3. rc.SomeMethod(x => x.Name.Any());

// SomeMethod implemenation. Method checks whether query executed is approved query or not
private bool SomeMethod (Func<person, bool=""> predicate)
{
//if query matches with StartsWith, return true

{logic to identify query is StartWith}

//if query matches with Equal, return false

{logic to identify query is Equal}

//if query matches with Any, return false

{logic to identify query is Any}

.... So on
}

So here i wnat to use a method which will restrict some of the queries and will allow few of them depending upon the approved query list. In the above example i allowing only 'StartsWith' as approved query. Remaining are not approved. Hope i am able to explain better this time.

Thank you very much Maciej Los. Really appreciate the detailed explanation and the time you spend for this. I have one question on above details,

From public List<person> Filter(Func<person, bool=""> predicate) method, is it possible to know 'StartsWith' is the actual query what is been called? I tried different options and i am able to get class name as 'person' and argument as 'x' but could not find any option which will give query 'StartsWith'. Can you please help me on this?

??

Thank you @OriginalGriff. I agree with exposing methods but i am curious to know whether any way we can intercept query and check what is been used. ex:if the query is _personalInfo.Where(p=>p.age > 30) then, is there a way to know that it is a 'Where' query?

Thanks Simon

Thanks Rickzeeland.

Can you please read my question once again

This is the one which i already read. I k ow how to implement but why to implement since simply we can create a function inside class, that was my question

I will check this. Thank you Rick.

Thank you Conny.
I thought of MVVM. Since i am using winforms and not WPF MVVM not sure? I know I can achieve it with INotifier and bind it. I think i may have to design a logic class for each control?

Yes you are correct. It will say cannot implicitly convert type object to bool.

But is there any difference between them..any idea?

Thanks much Pallani.

Sure Johan, Thanks

Johan, Thanks for your response. Mine is a winform application not WPF

Thanks Karthik.
This code is working now.
Once again thanks for your help.

Yes.
I dont want to use it directly like objModel.UserName = txtUserName.Text;
I want to use with binding only.

Thanks for the reply Karthik.
Your mentioned scenario what is happening is "abc" is getting displayed on to the text box. But what i need is what ever i write on text box, model property should be updated when i call some ok button.

<!-- creating an instance of my C# class to get the C# functions. I will be registring the class with regasm.exe-->
<object id="Object1" classid="clsid:cc12f78-67fe-4c22-9364-cdb743c22aa5"> </object>

<script language="javascript" type="text/javascript">
var resultValue= document.ctrlPanel.ReturnMessage();
alert(resultValue); <!-- correct value is getting poped in the alert window-->
</script>

<!-- Table for displying the output -->
<table id=Table2 style="width: 200px; font: 8pt Arial;">

<tr id="Tr5" style="height: 22px;">

<!--display output value here-->
<td id ="opValue">resultValue</td>

<!--output value displayed is simplt the text 'resultValue'. It is not displaying the value of the variable. How to display the value of the variable??-->

</tr>

</Table>

<!-- creating an instance of my C# class to get the C# functions. I will be registring the class with regasm.exe-->
<object id="Object1" classid="clsid:cc12f78-67fe-4c22-9364-cdb743c22aa5"> </object>

<script language="javascript" type="text/javascript">
var resultValue= document.ctrlPanel.ReturnMessage();
alert(resultValue); <!-- correct value is getting poped in the alert window-->
</script>

<!-- Table for displying the output -->
<table id=Table2 style="width: 200px; font: 8pt Arial;">

<tr id="Tr5" style="height: 22px;">

<!--display output value here-->
<td id ="opValue">resultValue</td>

<!--output value displayed is simplt the text 'resultValue'. It is not displaying the value of the variable. How to display the value of the variable??-->

</tr>

</Table>

Thank you so much Andrius

Thanks for your time Sergey. This works fine now. Shared MSDN doc is also a gud one.

Hi Chill, thank you for the answer. The link what you have provided has same interface methods with same return types where as in my case the return type of the interface methods are different. That is the reason i am geting error.Do you have any more input on this ??

Thanks for your input Bernhard Hiller.

Hello Dave,
You dont need to tell me whether it is stupid idea or not. I am already able to achieve the result using dynamic. My question was with out using dynamic. If you dont the answer you just keep quiet or just go and read something and then comment.

i want to have a method where it can take arguments and their type will be decided in run time (i will provide the arguments only which can be added together)and returns the respective type. I dont want create same function which does same functionality for different types. That was the intention to write such a method. Do you have any idea how can we accomplish that funtion into working ??

Hello Hiller,
Thanks for your time.
As you said we can add int and string together but i want to have a method where it can take arguments and their type will be decided in run time (i will provide the arguments only which can be added together)and returns the respective type. That was the intention to write such a method. Do you have any idea how can we accomplish that funtion into working ??

5+ TR

Hello Kuthuparakkal,
Thanks for helping. Great logic and its working fine

Thank you amit

Dotnet 2.0

Any way thank you very much Mr.Richard

I tried exporting the function and even the class itself as shown below. But still am getting same error. Please help!
#pragma once using namespace System;
namespace Test
{
public class __declspec(dllexport) Class1
{ public:static int Add(int i, int j)
{ return(i + j);
}
};
}

I tried exporting the function and even the class itself as shown below. But still am getting same error. Please help!
#pragma once using namespace System;
namespace Test
{
public class __declspec(dllexport) Class1
{
public:static int Add(int i, int j)
{ return(i + j);
}
};
}

I tried exporting the function and even the class itself as shown below. But still am getting same error. Please help!
#pragma once using namespace System; namespace Test
{
public class __declspec(dllexport) Class1
{
public:static int Add(int i, int j)
{ return(i + j); }
};
}

fds

I tried exporting the function and even the class itself as shown below. But still am getting same error. Please help!

#pragma once

using namespace System;

namespace Test {

public class __declspec(dllexport) Class1
{
public:static int Add(int i, int j)
{
return(i + j);
}
};
}

Hello Vladislav,
Already i used an asynchronous delegate to do this. I think it is same using a thread. But still the issue persist. I think issue is during deletion Focus is completly on gridview form and gridview and there are no other action being carried out. Can this be a reason ?

Hello CDP1802,
When i delete some 5000rows it will take some 30 to 60 seconds to complete. During this time if i simply click anywhere in gridview form, then form goes to "Not responding" state and it continues being Not responding state untill whole rows are deleted.

Hello Birajdar,
I am always deleting 0th index because i want to delete the 1st nRows. In datatable if you delete 1 row then whole rows are shifted 1 above. So there is no problem with delete part.

Deleting 1000 records will be take only fraction of seconds if the datatable from which you are deleting is not datagridview datasource. If it is datagridview datasource then it will take some time.

My issue is not logic. The grid view form gets into "Not responding" state during the deletion process. How to solve this?

i tried to use
req.Credentials = netcredit;
req.Proxy.Credentials = netcredit;
but still i am getting same error ?

Dear varun,
Is there any problem with my code ?

Thanks Tushar, 'case' works 4 me.
In combo box we can have display member and value member. Is there any such option for data table columns??

Your solution is just accessing data from a data table. My question is different from it