datalist problem

Question

2.00/5 (2 votes)

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Hi all,

I have a datalist in which I took three check boxes contain
1. user name
2. read rights(visibilty false)
3. write rights(visibilty false)
I bind them to data base.
Now I want that when the username checkbox is checked then read and write checkboxes are visible true.

Here is the design code:

XML

<td>
                                               <table id="complicated">
    <asp:DataList GridLines="Both" BorderStyle="Solid" ID="dList1" runat="server"
            OnItemDataBound="dList1_ItemDataBound"
            OnSelectedIndexChanged="dList1_SelectedIndexChanged" oneditcommand="dList1_EditCommand"
                                                       onitemcommand="dList1_ItemCommand" onitemcreated="dList1_ItemCreated" >
        <ItemTemplate>
        <table =" border-style:solid;" style="width: 484px">
        <tr>
            <td>
            <asp:Label ID="lblId" runat="server" Text='<%# Eval("id") %>' Visible="False"></asp:Label>
            </td>
            <td class="style14">
                <asp:CheckBox ID="cboxPermission1" runat="server"
                    text='<%# Eval("username") %>' AutoPostBack="True"
                    oncheckedchanged="cboxPermission1_CheckedChanged"  />
            </td>
            <td style="overflow:scroll;height:0px; width:100%;">
                <asp:CheckBox ID="cboxPermission2" runat="server" Text="Read"
                    Visible="False"  />
            </td>
            <td style="overflow:scroll;height:0px; width:100%;">
                <asp:CheckBox ID="cboxPermission3" runat="server" Text="Write"
                    Visible="False" />
            </td>
        </tr>
        </table>

        </ItemTemplate>
        </asp:DataList>
         </table></td>

I did not understand how I can set visibility to true on checkchanged of username's checkbox.

Please help

Posted 18-Nov-10 17:56pm

sharmarun

Updated 18-Nov-10 17:58pm

JF2015

v2

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Comments

Sunasara Imdadhusen 19-Nov-10 4:18am

Please check updated answer and please do let me know if issue going on...

2 solutions

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sanjay488 · Answer 1 · 2010-11-18T18:22:00

Solution 1

You can do this by either use of jQuery or DataList.ItemCreated event, if you use jquery then traverse table which is generated from DataList and get the value of username and accordingly that set visibility of read rights and write rights checkbox, if use DataList.ItemCreated event then get value of username checkbox by
Dim userName As CheckBox = _
CType(e.Item.FindControl("cboxPermission1"), CheckBox)
After get checkbox get it value by using it's property "Checked" and accordingly it's value set visibility of read rights and write rights checkbox visibility with same syntax, I hop this is enough

Posted 18-Nov-10 18:22pm

sanjay488

Comments

sharmarun 19-Nov-10 0:45am

yah i done that easily but i want it on check changed event
when checked changed then visibility true

Sunasara Imdadhusen 19-Nov-10 1:16am

you can achieve using my answer, and this is done at client side so it's reducing server trip.

sharmarun 19-Nov-10 1:44am

thanxz i got dat

sharmarun 19-Nov-10 1:48am

what read and write checkboxes not shown

Sunasara Imdadhusen 19-Nov-10 4:24am

Please check updated answer and please do let me know if issue going on...

Sunasara Imdadhusen · Answer 2 · 2010-11-18T19:03:00

Solution 2

Hi Arun,

Updated Answer is:

MIDL

document.getElementById(Read).style.display = visible ;
          document.getElementById(Write).style.display = visible ;

This is complete solution:

write in .cs file

C#

protected void dList1_ItemDataBound(object sender, DataListItemEventArgs e)
   {
       CheckBox chkPermission = (CheckBox)e.Item.FindControl("cboxPermission1");
       CheckBox chkRead = (CheckBox)e.Item.FindControl("cboxPermission2");
       CheckBox chkWrite = (CheckBox)e.Item.FindControl("cboxPermission3");
       chkPermission.Attributes.Add("onclick", "showhideReadWrite(this,'" + chkRead.ClientID + "','" + chkWrite.ClientID + "');");
   }

write in .aspx file between <head></head> tag

XML

<head>
<script language="javascript" type="text/javascript">
       function showhideReadWrite(_this, Read, Write) {
           var visible = (_this.checked) ? '' : 'none';
           document.getElementById(Read).style.display = visible ;
           document.getElementById(Write).style.display = visible ;
       }
   </script>
</head>

Please do let me know, if you have any doubt.

Please provide "Vote":thumbsup: if this would be helpful, and make "Accept Answer" if this would be correct answer.:rose:

Thanks,
Imdadhusen

Posted 18-Nov-10 19:03pm

Sunasara Imdadhusen

Updated 18-Nov-10 22:17pm

v3

Comments

sharmarun 19-Nov-10 1:21am

i will explain to u

let us suppose our datalist is created with check boxes where read and write checkbboxes are false

now i want that when i check a perticular checkbox in datalist then corresponding read and write checkboxes's visibilty is true

i think these are done at cboxpermission1's checked changed event

so here i need ur help
plz provide sum help

Sunasara Imdadhusen 19-Nov-10 1:23am

will you tried my answer?

sharmarun 19-Nov-10 1:37am

yah i got dat sorry

thanxz a lot

Sunasara Imdadhusen 19-Nov-10 1:42am

Thanks,

sharmarun 19-Nov-10 1:52am

what read and write checkboxes not shown

Sunasara Imdadhusen 19-Nov-10 1:56am

what??

sharmarun 19-Nov-10 2:16am

i want the on checked=true for cboxpermission1 the read and write checkboxes visible else not

and ur code do not affect dis condition

Sunasara Imdadhusen 19-Nov-10 3:02am

Ok, what it will return?

sharmarun 19-Nov-10 3:32am

it will return display='none;

sharmarun 19-Nov-10 3:35am

the dynamic page shows

<td >
<input id="dList1_ctl00_cboxPermission1" type="checkbox" name="dList1$ctl00$cboxPermission1" önclick="showhideReadWrite(this,'dList1_ctl00_cboxPermission2','dList1_ctl00_cboxPermission3');" /><label for="dList1_ctl00_cboxPermission1">FAQUIR CHAND</label>
</td>
<td style="overflow:scroll;height:0px; width:100%;">
<span style="display:none"><input id="dList1_ctl00_cboxPermission2" type="checkbox" name="dList1$ctl00$cboxPermission2" /><label for="dList1_ctl00_cboxPermission2">Read</label></span>
</td>

Sunasara Imdadhusen 19-Nov-10 4:15am

Sorry! i forgot to assign value of visible variable!!!