how to access footer label in header in datalist

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Hello,

I am using nested datalist. in nested datalist i am using header template and footer template. i am binding 2 labels in footer templates.
now how to access this 2 labels value in header templates.

because when i click on header templates linkbutton that time i need this 2 labels value.

i will try this code (given below)
Int16 post_id = Convert.ToInt16(((Label)e.Item.FindControl("Label3")).Text);

It gives error like : Object reference not set to an instance of an object.

Thanks.
Shailesh prajapati.

Posted 28-Dec-10 18:56pm

shailesh125

Updated 28-Dec-10 18:57pm

Abhinav S

v2

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Brij 29-Dec-10 1:07am

Did you try to debug the code?
e.Item.FindControl("Label3") must be returning null. Means not able to find?

3 solutions

Solution 2

Off course You might getting NULL as Brij suggested while getting Label3 using FindControl.

If you're very sure on lable there, Then check proper spelling whether some character in upper or lower case in Label3.

Posted 28-Dec-10 19:47pm

Hiren solanki

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Venkatesh Mookkan · Accepted Answer · 2010-12-28T19:34:00

Solution 1

As you are finding the control in your Footer, you need to add additional condition.

C#

if (e.ItemType == ListItemType.Footer)
{
   int post_id = Convert.ToInt16(((Label)e.Item.FindControl("Label3")).Text); 
}

Mark it as answer if it is really helpful.

Posted 28-Dec-10 19:34pm

Venkatesh Mookkan

Comments

shailesh125 29-Dec-10 1:47am

Thnkyou very very much for replying.

but, i want to access footer control in header.

like this.
if(e.ItemType == ListItemType.Header)
{
access footer label.
}

Venkatesh Mookkan 29-Dec-10 1:51am

I am not sure what is your business need to access Footer when you are at Header item.

In that case try the below,
yourDataList.Items[yourDataList.Items.Count-1].FindControl("Label3")

I am not sure, this is gonna work.

thatraja 29-Dec-10 2:24am

@Venkatesh : Hi, I think they are put things like count, sum, total things in the footer so they want to get the things to other operations.

Venkatesh Mookkan 29-Dec-10 2:39am

Even for that he can use a variable, keep adding it until the item is footer. It is a simple logic.

thatraja 29-Dec-10 7:10am

but they chose that way :)

Mohd Wasif · Accepted Answer · 2010-12-28T19:51:00

Solution 3

Label id= (Label)DataList1.Items[i].FindControl("Label2");
 int post_id=Convert.ToInt32(id.Text.ToString());

use it .

Posted 28-Dec-10 19:51pm

Mohd Wasif

Updated 28-Dec-10 20:22pm

v2

Comments

thatraja 29-Dec-10 2:22am

Added code block