Filtertemplate in RadGrid

Question

User-1651183775 posted

Hello,

Can anyone help me with RadGrid Filtering? I want to implement something similar to this:

http://demos.telerik.com/aspnet-ajax/grid/examples/functionality/filtering/filter-templates/defaultcs.aspx

I have managed to bind the data to filter combobox. The issues are:

1. Since these comboboxes are bounded in "ItemDataBound" or "IteCreated" event of Radgrid, It takes lot of time every time there is change in template.
2. the dropdown values are not getting changed based on filer applied in adjacent column

Answer 1

User-335504541 posted

Hi kodnil,

It seems your problem is caused by telerik controls.

I think you could post your question to telerik forum for more professional support:

https://www.telerik.com/forums/aspnet-ajax/grid

Best Regards,

Billy

Answer 2

User-1651183775 posted

that forum does not seem to be active. I was expecting some Telerik geeks here as well.

Answer 3

User-335504541 posted

<g class="gr_ gr_16 gr-alert gr_gramm gr_inline_cards gr_run_anim Punctuation only-ins replaceWithoutSep" id="16" data-gr-id="16">Hi</g> <g class="gr_ gr_8 gr-alert gr_spell gr_inline_cards gr_disable_anim_appear ContextualSpelling ins-del multiReplace" id="8" data-gr-id="8">kodnil</g>,

Since these <g class="gr_ gr_28 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" id="28" data-gr-id="28">comboboxes</g> are bounded in "ItemDataBound" or "IteCreated" event of Radgrid, It takes <g class="gr_ gr_25 gr-alert gr_gramm gr_inline_cards gr_run_anim Grammar multiReplace" id="25" data-gr-id="25">lot</g> of time every time there is <g class="gr_ gr_24 gr-alert gr_gramm gr_inline_cards gr_run_anim Grammar only-ins doubleReplace replaceWithoutSep" id="24" data-gr-id="24">change</g> in template.

Do you query your database every time when the change happens in the template? 

That will take a long time, I think you could save your data into something like session after the first query to the database.

the dropdown values are not getting changed based on filer applied in adjacent column

According to the code in your provided link, the <g class="gr_ gr_672 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" id="672" data-gr-id="672">comobox</g> has <g class="gr_ gr_677 gr-alert gr_gramm gr_hide gr_inline_cards gr_run_anim Grammar only-ins multiReplace replaceWithoutSep" id="677" data-gr-id="677">OnClientSelectedIndexChanged</g> event. I think you could update your <g class="gr_ gr_763 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling" id="763" data-gr-id="763">dropdownlist's</g> data based on <g class="gr_ gr_872 gr-alert gr_gramm gr_inline_cards gr_run_anim Grammar only-ins doubleReplace replaceWithoutSep" id="872" data-gr-id="872">filter</g> in this event.

Best Regards,

Billy