CODEWITHSUNDEEP
c#asp.netwebformslabelcode-behind
Lalji
Lalji

Reputation: 17

Get value of label in C# CodeBehind, when label does not have an id attribute

I have a <label> that does not have an id attribute. It only has a for attribute. Can I get the value of this label in CodeBehind C#?

This application is built in ASP.NET.

<label for="txtEmpCd">Department</label>
<asp:DropDownList ID="DropDownList4" runat="server" CssClass="form-control"></asp:DropDownList>

Upvotes: 1

Views: 1774

Answers (3)

Mike
Mike

Reputation: 721

You cannot access from codebehind without having runat="server".

If you only can access from codebehind, find read all html literals in entire page, get element having for attribute is "txtEmpCd" which is very tedious and not the right way to do so.

In jQuery (client side), you can find label which has for attribute is "txtEmpCd" also tedious as well.

My suggestion! Why don't you add ID="txtEmpCd" to your label?

Upvotes: 0

Laslos
Laslos

Reputation: 360

You can access a <asp:Label> without an ID, but it will require recursively searching through the controls on the page. This will require the label to be in the form:

<asp:Label AssociatedControlID="txtEmpCd" runat="server" />

You will need to define a recursive function as such:

private void LoopThroughLabels(Control parent)
{
    foreach (Control c in parent.Controls)
    {
        Label label = c as Label;
        if (label != null)
        {
            if (label.AssociatedControlID == "txtEmpCd")
            {
                // This is your label
            }
        }

        if (c.HasControls())
        {
            LoopThroughLabels(c);
        }
    }
}

And for the first call, pass in the Page:

LoopThroughLabels(Page);

Upvotes: 1

VDWWD
VDWWD

Reputation: 35514

Use a Label with an AssociatedControlID

<asp:Label ID="Label1" runat="server" Text="Department" AssociatedControlID="DropDownList4"></asp:Label>

Upvotes: 0

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