Repeater, FindControl

[MDS1]

Hi,

I have a html table inside a repeater control. There is a row in the table that I need to toggle the visibility of. I have set the <tr> to runat="server" and have given it the ID of "trSwitch".

In the code behind, I have the following:

HtmlTableRow trSwitch = (HtmlTableRow)Repeater1.FindControl("trSwitch");
trSwitch.Visible = true;

But when I run the page I get a 'Object reference not set to an instance of an object"...

How can I successfully find the <tr> in the repeater?

Thanks in advance.

[Frinavale]

Hi,

I have a html table inside a repeater control. There is a row in the table that I need to toggle the visibility of. I have set the <tr> to runat="server" and have given it the ID of "trSwitch".

In the code behind, I have the following:

HtmlTableRow trSwitch = (HtmlTableRow)Repeater1.FindControl("trSwitch");
trSwitch.Visible = true;

But when I run the page I get a 'Object reference not set to an instance of an object"...

How can I successfully find the <tr> in the repeater?

Thanks in advance.

When you set the Visibility of something using the .NET server code that object is not rendered in the html page.

Instead of using server side code to hide the row, set the row's CSS "visibility" or "display" property to hide the row...

eg

<tr style="display:none"></tr>
 

Also, I don't think that a <tr> can be accessed through the FindControl method. The FindControl method is used to find a control, not a table row.

Therefore, when you are creating the <tr> be sure to set the CSS there.


-Frinny