header filter does not work if column is initially hidden
I'm using a DevExpress grid and I'm trying to get a 'Country' column to display the header filter properly:
<dx:GridViewDataColumn Caption="Country" FieldName="CountryName"
ShowInCustomizationForm="True" Visible="false">
<Settings AllowHeaderFilter="True"/>
</dx:GridViewDataColumn>
If the 'Country' column is set to Visible='true', then the header filter is displayed as it should(it shows the value option list). However, I want the 'Country' column to be initially hidden, but available in a Customization window(like in the code above). In this case, when the column is dragged outside the Customization window and into the grid and the header filter is clicked, a Javascript error is encountered:
element is null element.addEventListener(eventName, func, true);
Is this a known bug? Are there any workarounds?
Set the ASPxGridView.Settings.ShowHeaderFilterButton property to true to resolve this problem.
The following markup works fine for me (I am using DXperience 10.1.7):
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/nwind.mdb"
SelectCommand="SELECT * FROM [Categories]"></asp:AccessDataSource>
<dx:ASPxGridView ID="ASPxGridView1" runat="server" AutoGenerateColumns="False" ClientInstanceName="grid"
DataSourceID="AccessDataSource1" KeyFieldName="CategoryID">
<SettingsCustomizationWindow Enabled="True" />
<Columns>
<dx:GridViewDataTextColumn FieldName="CategoryID" ReadOnly="True" VisibleIndex="0">
<EditFormSettings Visible="False"/>
<Settings AllowHeaderFilter="False" />
</dx:GridViewDataTextColumn>
<dx:GridViewDataTextColumn FieldName="CategoryName" Visible="False" VisibleIndex="1">
<Settings AllowHeaderFilter="True" />
</dx:GridViewDataTextColumn>
<dx:GridViewDataTextColumn FieldName="Description" VisibleIndex="2">
<Settings AllowHeaderFilter="False" />
</dx:GridViewDataTextColumn>
</Columns>
<Settings ShowHeaderFilterButton="True" />
</dx:ASPxGridView>
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