How to get value of Visible Column on gridview

Question

User-475949336 posted

Hi

I  have gridview as below:

<asp:Gridview id="gridview2" CssClass="dt-responsive" class="display" Width="100%" runat="server" AutoGenerateColumns="false">

....

<asp:TemplateField HeaderText="Code" Visible="false">
<ItemTemplate>
<asp:TextBox ID="txtMyCode" Text='<%# Eval("mycode") %>' runat="server" Visible="false"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>

.....

</<asp:Gridview>

AND below code in javascript (I must use function as that)

function updateCaculate_addnew()
{
var table = $('#<%=gridview2.ClientID%>').DataTable();
var rowCount = table.rows().count();

var i;
for (i = 0; i < rowCount; i++)

{
var selectorForMycode ='#<%=gridview2.ClientID%> input[id*=txtMyCode_' + i + ']';
var mycode= $(selectorForMycode ).val();   // I can't get this, because 'txtMyCode' is Visible="false"

}

}

pls help me ASAP, thanks very much!

Answer 1

User475983607 posted

The ASP.NET framework does not return HTML to the browser when the server control's visibility is set to false.  A possible solution is using CSS to set the display to none.

.myDisplayNone {display:none;}

You can also take advantage of a hidden field.

Answer 2

User-475949336 posted

Dear mgebhard

plse detail how to for me, I can't do it with the guide.

Answer 3

User475983607 posted

Dear mgebhard

plse detail how to for me, I can't do it with the guide.

You need assistance adding a hidden field to a GridView?  The process is the same adding a textbox server control.  Can explain why you are unable to add a hidden field?  

Answer 4

User-475949336 posted

Hi mgebhard

I added hidden field to gridview2 and got the value of this column. I'm wrong when don't use hidden field.

Thank you very much!!!