Error while converting from vb.net to c#

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Hi,

when I am trying to convert the below line of code from vb.net to c# showing an error.

VB.NET Code: lt.Text = IIf(CType(dg.Controls(i), CheckBox).Checked, True, False)

Converted c# code:
lt.Text == (((CheckBox)dg.Controls(i)).Checked ? true : false)

Please help me for resolving this.

Posted 8-Oct-15 1:54am

Baroor

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Comments

CPallini 8-Oct-15 8:02am

What are you trying to do? Do you really want to test for equality It.Text with the expression on the right side of the == operator?

Abdul Samad KP 8-Oct-15 8:03am

use Controls[i] instead of Controls(i)

Krunal Rohit 8-Oct-15 8:04am

[i] instead of (i), rest of it looks good.
Can you share the error details ?

-KR

Baroor 8-Oct-15 8:44am

when Iam tring this: (((CheckBox)dg.Controls[i]).Checked ? true : false);

Showing error like, cannot imppicityly convert type bool to string.

Abdul Samad KP 8-Oct-15 9:40am

You need to convert it to string
((CheckBox)dg.Controls[i]).Checked.ToString();
this will work.

You don't need a conditional operator (?:) operator because ((CheckBox)dg.Controls[i]).Checked return true or false only.

2 solutions

Solution 1

Assuming that you want to assign, not compare. Also assuming that you mean to perform an array index operation:

C#

lt.Text = ((CheckBox)dg.Controls[i]).Checked

Or, if the variable dg is statically typed:

C#

lt.Text = dg.Controls[i].Checked

Posted 8-Oct-15 2:03am

Nathan Minier

Updated 8-Oct-15 2:07am

v3

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Ralf Meier · Accepted Answer · 2015-10-08T02:07:00

Solution 2

Try it like this :

C#

lt.Text = Convert.ToString(((CheckBox)dg.Controls(i)).Checked ? true : false);

Posted 8-Oct-15 2:07am

Ralf Meier

Comments

Maciej Los 9-Oct-15 1:57am

Ralf, have a look at your solution. In my opinion it it completely wrong. Think of it: Checked returns true/false, so you don't need to use lambda expression. Secondly: why - ...!!! - do you convert it to string?

Ralf Meier 9-Oct-15 3:36am

Hello Maciej,
Thanks for your reply.
I don't checked if this code makes sense or not - I only completed the code from the inquirer that the code would be accepted by the development-system.
I think also that Solution 1 is much better.

2nd: the control return a boolean and the assignment goes to a text-Property (lt.text) which is a string - so in my opinion it must be converted to string.

Baroor 9-Oct-15 4:01am

@Ralf, thanks, above code works for me.

Ralf Meier 9-Oct-15 6:37am

Thanks for your reply.
Nevertheless - I would prefer the first Suggestion from Solution 1 - combined with the Convert.ToString-method ...