Manage table according to dropdown selected value

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Hi...

I am begginer to asp.net mvc. My mvc application have 3 Tables.if dropdown selected value is 1 then "tblsolid" will be visible & "tblgas" will be hide & If selected value is 2 then "tblgas will be show & "tblsolid" will be hide." tblsolid" have 3 rows &"tblGas" 13 rows.In case of when "tblgas" will show then there is no problem."tblcomm" is show immediately below "tblgas".BUT in case of whenever "tblsolid" will show then there is space between "tblsolid" & "tblcomm" because "tblsolid" contain minimum rows than "tblgas"..What is solution to this problem ??? Below are the my three table structure.

HTML

<table style="removed: absolute" id="tblSolid">
                           <tr>
                               <td>
                                   Carbon
                               </td>
                               <td>
                                   @Html.TextBox("TbC", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbC)
                               </td>
                           </tr>
                           <tr>
                               <td>
                                   Hydrogen:
                               </td>
                               <td>
                                   @Html.TextBox("TbH", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbH)
                               </td>
                           </tr>
                           <tr>
                               <td>
                                   Nitrogen :
                               </td>
                               <td>
                                   @Html.TextBox("TbN", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbN)
                               </td>
                           </tr>

                       </table>


                       <table id="tblGas">
                           <tr>
                               <td>
                                   CH4
                               </td>
                               <td>
                                   @Html.TextBox("TbCH4", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbCH4)
                               </td>
                           </tr>

                           <tr>
                               <td>
                                   C2H4:
                               </td>
                               <td>
                                   @Html.TextBox("TbC2H4", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbC2H4)
                               </td>
                           </tr>

                           <tr>
                               <td>
                                   C2H6 :
                               </td>
                               <td>
                                   @Html.TextBox("TbC2H6", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbC2H6)
                               </td>
                           </tr>


                           <tr>
                               <td>
                                   C3H6 :
                               </td>
                               <td>
                                   @Html.TextBox("TbC3H6", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbC3H6)
                               </td>
                           </tr>
                           <tr>
                               <td>
                                   C3H8 :
                               </td>
                               <td>
                                   @Html.TextBox("TbC3H8", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbC3H8)
                               </td>
                           </tr>


                           <tr>
                               <td>
                                   C4H10 :
                               </td>
                               <td>
                                   @Html.TextBox("TbC4H10", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbC4H10)
                               </td>
                           </tr>

                           <tr>
                               <td>
                                   C5H12 :
                               </td>
                               <td>
                                   @Html.TextBox("TbC5H12", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbC5H12)
                               </td>
                           </tr>


                           <tr>
                               <td>
                                   C6H6:
                               </td>
                               <td>
                                   @Html.TextBox("TbC6H6", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbC6H6)
                               </td>
                           </tr>


                           <tr>
                               <td>
                                   H2
                               </td>
                               <td>
                                   @Html.TextBox("TbH2", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbH2)
                               </td>
                           </tr>

                           <tr>
                               <td>
                                   CO:
                               </td>
                               <td>
                                   @Html.TextBox("TbCO", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbCO)
                               </td>
                           </tr>

                           <tr>
                               <td>
                                   H2S :
                               </td>
                               <td>
                                   @Html.TextBox("TbH2S", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbH2S)
                               </td>
                           </tr>

                           <tr>
                               <td>
                                   H2OGAS :
                               </td>
                               <td>
                                   @Html.TextBox("TbH2OGAS", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbH2OGAS)
                               </td>
                           </tr>

                           <tr>
                               <td>
                                   SO2:
                               </td>
                               <td>
                                   @Html.TextBox("TbSO2", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbSO2)
                               </td>


                       </tr></table>

                       <table id="tblComm">
                           <tr>
                               <td>
                                   Excess Air:
                               </td>
                               <td>
                                   @Html.TextBox("TbExcessAir", 0, new { style = "width:50px" })
                                   @Html.ValidationMessageFor(m => m.TbExcessAir)
                               </td>
                           </tr>
                       </table>

Posted 1-Dec-13 18:30pm

Rohini Shirke

Updated 22-Dec-13 12:59pm

Nelek

v2

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Christian Graus · Answer 1 · 2013-12-22T11:30:00

Solution 1

Put your break tags or whatever inside the if blocks, so that each element renders itself AND the gap under it.

Posted 22-Dec-13 11:30am

Christian Graus

Prasaad SJ · Answer 2 · 2013-12-22T15:53:00

Hi Rohini..
Visible=false in aspx page will take care of the space requirements. The server will send only the controls which has visibile=false.

But if you are using a pure HTML page, hiding will hide the control but eat up the space. The best css that you can use is

"display:none"

this would not display the element and wont eat up your space.

you can work on the following if you have any queries.

http://www.w3schools.com/cssref/playit.asp?filename=playcss_display&preval=none[^]

you have to use like

<table style="display:none">
....
</table>