CODEWITHSUNDEEP
c#asp.net
sab669
sab669

Reputation: 4104

How to get all <asp:Label> controls within an HTML Table?

I'm updating some old code that loops over a collection and sets some UI display properties based on the values in the object.

Unfortunately, it's hardcoded like so:

for (int i = 0 ; i < length; i++) // length is going to be 30+
{
    // do some stuff

    switch (i)
    {
        case 1:
            lbl1.Text = myVariable;
            break;
        case 2:
            lbl2.Text = myVariable;
            break;
        ....
        case 15:
            lbl15.Text = myVariable;
            break;
    }
}

(I say unfortunately because it actually has 5 more lines per case that I left out, which do the exact same thing regardless of the case)

Now, I could put all 15 label controls in an array and in my for loop just do if (i <= 15) lblArr[i].Text = myVariable; but I'd prefer not to have to hardcode this array. If we add more labels then we'll need to remember to update this function.

So, I'm trying to find a way to find all the controls within a particular HTML element, but I cannot find a working example in a .NET language.

In winforms I could simply just iterate over someControl.Controls and find the appropriate ones, but since these are labels in an HTML table and not a repeater or anything like that I don't know how to find them. Any ideas?

Upvotes: 1

Views: 1382

Answers (3)

moarboilerplate
moarboilerplate

Reputation: 1643

Depending on the complexity of the code, it may be cleaner to just retrieve a db row on page load, set it to a property on the codebehind (or put its data in an object that is a property on the page), and then bind to it using code blocks. You can get rid of all of the <asp:Label> elements that way too.

e.g.

<table>
   <tr>
     <td><span><%: myObject.Property1 %></span></td>
   </tr>
</table>

That way you can make all of your binding declarative and remove the need for procedural codebehind logic to loop through and set things.

Upvotes: 0

g2000
g2000

Reputation: 490

How about jquery? It's definteily much faster than .NET. give it a shot... :)

$(function () {

    var myTableId = "yourTableId";
    var yourReplacementText = "yourReplacementText";
    var allSpansUnderYourTable = $('#' + myTableId).find('span');
    $.each(allSpan, function (index, item) {
        item.innerHTML = yourReplacementText;
    });
});

Upvotes: 0

Royi Namir
Royi Namir

Reputation: 148524

You can use the FindControl method : 

for (int i = 0 ; i < length; i++) 
{
     Label ans = FindControl(string.Format("lbl{0}",i)) as Label ;
          if (ans!=null) and.Text = myVariable

}

Upvotes: 1

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