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Hiding the filter row from the start

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kieran
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kieran asked on 25 Nov 2008, 05:59 PM
Hi. I am using the technique described in the demo to have a toggle (in my case a check box) that allows the user to hide the filter row.

This works just fine, but it always starts off visible. Is there a way to have it initially hidden?

Looking at this thread tempts me to set tableView.get_tableFilterRow().style.display = none, but I'd rather use a published API. I did put an OnGridCreated handler to turn off the row, but the user sees this happening and it fires every time a call back occurs.

Any ideas?

Thanks

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Shinu
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answered on 26 Nov 2008, 04:30 AM
Hi,

To hide the filter row initially set the AllowFilteringByColumn property to false in the aspx and set its visibility in the CheckBox CheckChanged event .

CS:
 protected void CheckBox1_CheckedChanged1(object sender, EventArgs e) 
    { 
        RadGrid1.AllowFilteringByColumn = !RadGrid1.AllowFilteringByColumn; 
        RadGrid1.Rebind(); 
    } 


Thanks
Shinu.
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kieran
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answered on 27 Nov 2008, 11:32 PM
Thanks, that sort of works, but it's a bit laggy, or slow.

There's no way to do it client side?
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Vlad
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answered on 28 Nov 2008, 06:55 AM
Hello kieran,

Please check this demo for more info:
http://demos.telerik.com/aspnet/Prometheus/Grid/Examples/GeneralFeatures/Filtering/DefaultCS.aspx

Regards,
Vlad
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kieran
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answered on 01 Dec 2008, 05:20 PM
Yeah, that's the demo I'm basing my code on.

It doesn't show me how to start off with the filter row hidden though.
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Sebastian
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answered on 02 Dec 2008, 09:02 AM
Hi kieran,

You may consider invoking the hideFilterItem() client method intercepting the OnGridCreated client-side event and stopping the method invocation (if you want to show the filter item at some point) on subsequent submits based on your custom logic.

Best regards,
Sebastian
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kieran
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answered on 02 Dec 2008, 10:18 PM
Yeah, I tried that early on, but it looks horrible. I'm going to settle for Shinu's initial solution, although I'd really prefer no postback.
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Simon
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answered on 18 Dec 2008, 02:01 PM

Keiron

 

I have just come across the same requirement, and have used the following work around to get it functioning as I required:

 

1)      Ensure that the Checkbox you want to use to toggle the display of the Filter Row is server side, you need this to manage the Filter Row visibility between PostBacks

 

<asp:CheckBox runat="server" id="chkShowFilter" onclick="ToggleFilter();" />

 

2)      Handle the Grid’s ItemDataBound event, use this to add a custom attribute to the FilterRow

 

protected void grdProducts_ItemDataBound(object sender, GridItemEventArgs e)

{

if (e.Item.ItemType == GridItemType.FilteringItem)

{

e.Item.Attributes.Add("isFilterRow", "1");

 

if ( e.Item.Style["display"] != null)

    e.Item.Style.Remove("display");

 

if (!chkShowFilter.Checked)

    e.Item.Style.Add("display", "none");

}

}

 

3)      Create a Javascript method to get the <TABLE> element of the Grid’s MasterTableView (you can’t use get_masterTableView() as this doesn’t allow to extract a collection of all TRs)

 

    function ToggleFilter() {

 

   var chkShowFilter = document.getElementById('<%=chkShowFilter.ClientID %>');
   var grid = $find('<%=grdProducts.ClientID %>');

 

 

var tblMasterTable = document.getElementById(grid.get_masterTableView().get_id());

var tableRows = tblMasterTable.getElementsByTagName('tr');

var filterRowId = -1;

 

if ( tableRows != null ) {

 

for(i = 0; i < tableRows.length; i++) {

var isFilterRow = tableRows[i].getAttribute('isFilterRow');

 

if ( isFilterRow != null && isFilterRow == '1' ) {

filterRowId = i;

} 

}

 

if ( filterRowId > -1 ) {

if ( chkShowFilter.checked ) {

    tableRows[filterRowId].style.display = '';

}

else {

    tableRows[filterRowId].style.display = 'none';

}

}

}

    }

Hope this helps

Regards

Simon 

 

 

 

 

 

 

 

 

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kieran
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Shinu
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kieran
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Vlad
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Simon
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