Getting checkbox value from a gridview without id

Question

My code

<asp:GridView ID="FireFighters" runat="server" AutoGenerateColumns="false"  OnRowDataBound="FireFighters_RowDataBound"  >
    <Columns>
        <asp:BoundField HeaderText="שם הכבאי" DataField="username" />
        <asp:CheckBoxField HeaderText="מצוות לאירוע" DataField="IsLinked"  />
    </Columns>
</asp:GridView>

I can't add and id to the asp:CheckBoxField, i tried calling it like this from code-behind:

foreach(GridViewRow gvr in FireFighters.Rows)
{
    lst.Add(new FireFighter{username=gvr.Attributes["id"].ToString(),IsLinked=((gvr.Cells[1] as Control) as CheckBox).Checked});
}

But its null, how can i get the value(checked or not) of the Checkbox?

Here you can see how to find controls inside the GridView: stackoverflow.com/questions/6873973/… — nZeus
– nZeus, Commented Mar 24, 2015 at 22:21
@nZeus you can't add an id to asp:CheckBoxField, i wish i could — Tomer Oszlak
– Tomer Oszlak, Commented Mar 24, 2015 at 22:22
You can use <asp:TemplateField> and place Checkbox control inside — nZeus
– nZeus, Commented Mar 24, 2015 at 22:25

Hanlet Escaño · Accepted Answer · 2015-03-24 22:36:30Z

1

You are almost there. This should help you:

foreach (GridViewRow gvr in FireFighters.Rows)
{
    lst.Add(new MyClass { username = ((DataControlFieldCell)gvr.Controls[0]).Text, IsLinked = ((CheckBox)gvr.Controls[1].Controls[0]).Checked });
}

Each row has a collection of cells, and these cells have the controls you want inside. You can access them by index (in the case of the checkbox) and cast it to a CheckBox or access the cells themselves and get the text and cast it to DataControlFieldCell.

answered Mar 24, 2015 at 22:36

Hanlet Escaño

17.4k10 gold badges54 silver badges76 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

nZeus Over a year ago

I wouldn't recommend this solution. Using indexes is not a good idea.

Hanlet Escaño Over a year ago

I know it is not the best idea since the code can change. He was already doing it this way, I just pointed him in the right direction. Feel free to add your own - better - solution.

Hanlet Escaño Over a year ago

@TomerOszlak as nZeus mentions, you have to have in mind that if something in your markup changes this will not work, and thus this is not the best solution to your problem. You should probably use something where you can find the controls inside your grid.

Collectives™ on Stack Overflow

Getting checkbox value from a gridview without id

1 Answer 1

3 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related