ADO.NET :: How To Cast DataTable To DataRow

Jan 5, 2011

I m trying to cast DataTable.Rows to DataRow in VB but could not manage!

Here is the sample code:

[Code]....

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I have taken a DataTable control and have added colums to it. Now i want to add rows to that DataTable but when i am trying to create a DataRow of DataTable, an error is generated, showing "Value of type 'System.Data.DataRow' cannot be converted to 'dataRow'".

exact coding that i have written is as follows:

[Code]....

So, where i am getting wrong?

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I have a method like

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This fetches a row and returns it. Pretty simple.

However I can't test in the method to see if the row was fetched, as the method has to end with:

return ds.Tables[0].Rows[0];

If the row wasn't fetched, this errors as there is no row at position 0.

I can't do this:

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}
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.. because then I get an error that I can't return an uninitialised variable (dr).

I can't stipulate what the columns are and return a "blank" DataRow as far as I can see, because it's dynamic so I don't know what the columns will be. There doesn't seem to be a way to instantiate the DataRow return var except by assigning, er, a DataRow. Which I may not have.

I don't really want to switch to using the ItemArray and pass arrays about, I'd rather just pass the DataRow object as this is in a loop which might process a lot of rows.

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[Code]....

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[code]...

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here the code i use let me know what am i missing

[Code]....

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DataRow dr = null;
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Edit-- Actually i was trying put these string array values into dropdown (ddchooseadeal).

[Code]....

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[code]...

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[Code]....

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It would be great if I could do it with the datareader too, something like this:

[Code]....

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Here is how e is assigned to "row" as DataRow.

Code:
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When I click on my btnMissionary_Click which is suppose to add a datatable row I am getting the following error:

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Here is my form
HTML Code:
<div id="container">
[code].....

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Dot Liquid uses a way in order to make using templates safe. Here is the explanation page.

Here is the Explanation from it's wiki:

[code]...

So when I pass DataRow to liquid, liquid wont let me show it's content and tells me that:

'System.Data.DataRow' is invalid because it is neither a built-in type nor implements ILiquidizable

Is there any solutions to pass DataRow object that implements ILiquidizable too?

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[Code]....

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