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    ASPxClientCustomizeParameterPropertiesEventArgs Class

    Supplies data for the CustomizeParameterProperties event.

    #Declaration

    TypeScript
    declare class ASPxClientCustomizeParameterPropertiesEventArgs extends ASPxClientEventArgs

    #Inheritance

    ASPxClientEventArgs
    ASPxClientCustomizeParameterPropertiesEventArgs

    #constructor(parameter, parameterPanelLayoutItem, editors, getEditor, editOptions)

    Initializes a new instance of the ASPxClientCustomizeParameterPropertiesEventArgs class with specified settings.

    #Declaration

    TypeScript
    constructor(
        parameter: DevExpress.Reporting.Viewer.Parameters.IParameterDescriptor,
        parameterPanelLayoutItem: any,
        editors: DevExpress.Analytics.Utils.ISerializationInfo,
        getEditor: any,
        editOptions: any
    )

    #Parameters

    Name Type Description
    parameter IParameterDescriptor

    An IParameterDescriptor object that stores information about a report parameter.

    parameterPanelLayoutItem any

    An object that stores information about parameter panel layout items.

    editors ISerializationInfo

    An array of ISerializationInfo objects that store information required to serialize a property editor.

    getEditor any

    A function that gets serialization information for a property editor by its property name or model name.

    editOptions any

    An object that contains options used to specify the editing settings of parameters, groups, and separators:

    #Properties

    #editOptions Property

    An object that contains options used to specify the editing settings of parameters, groups, and separators.

    #Declaration

    TypeScript
    editOptions: any

    #Property Value

    Type
    any

    #Remarks

    The editOptions property contains the following option:

    allowDelete
    Specifies whether users can delete an item. When set to false, hides the Delete button for the specified item.

    Set the editOptions.allowDelete property to false to hide delete buttons for specified items.

    The following snippet hides delete actions for all parameters in the Properties Panel, Field List, and Parameter Editor. Note that users can still remove parameter groups and separators:

    js
    function customizeParameterProperties(sender, args) {
        if (args.parameter) {
            args.editOptions.allowDelete = false;
        }    
    }
    

    #editors Property

    An array of objects that store information required to serialize a property editor.

    #Declaration

    TypeScript
    editors: any

    #Property Value

    Type Description
    any

    An array of ISerializationInfo objects that store information required to serialize a property editor.

    #Remarks

    The following code snippet hides all property editors for the parameter1 parameter:

    js
    function customizeParameterProperties(sender, args) {
        if (args.parameter) {
          const name = args.parameter.name;
            if (name === 'parameter1'){
            args.editors.forEach(i => {
                // Hide editors.
                i.visible = false;
                // Disable editors.
                //i.disabled = true;
            });
        }    
    }}
    

    The parameter1 parameter has no visible property editors:

    Parameter Editor:
    Parameter Editor - Hidden Property Editors
    Properties Panel
    Properties Panel - Hidden Property Editors

    #getEditor Property

    A function that gets serialization information for a property editor by its property name or model name.

    #Declaration

    TypeScript
    getEditor: DevExpress.Analytics.Utils.ISerializationInfo

    #Property Value

    Type Description
    ISerializationInfo

    An ISerializationInfo object that stores serialization information for a property editor.

    #Remarks

    Use the getEditor function to get serialization information about the property editor by its name. The use of the function is necessary because the display names of the same editors may differ in the Properties Panel and Parameter Editor.

    javascript
    function customizeParameterProperties(sender, args) {
        if (args.parameter) {
            const allowNullInfo = args.getEditor('allowNull');
            if (allowNullInfo) {
                // Hide the Allow null value checkbox.
                allowNullInfo.visible = false;
            }
            const name = args.parameter.name;
            if (name === 'parameter3') {
                const descriptionEditor = args.getEditor('description');
                if (descriptionEditor) {
                    // Disable the Description editor.
                    descriptionEditor.disabled = true;
                }
            }
        }
        if (args.parameterPanelLayoutItem.layoutItemType === 'Group') {
            const titleEditor = args.getEditor('title')
            // Disable the Title editor.
            titleEditor.disabled = true;
        }    
    }
    

    The property editors for parameter3 look as follows (the Allow Null Value checkbox is hidden and the Description editor is disabled):

    Parameter Panel
    Parameter Editor - Hidden and Disabled Property Editors
    Properties Panel
    Properties Panel - Hidden and Disabled Property Editors

    #parameter Property

    An object that stores information about a report parameter.

    #Declaration

    TypeScript
    parameter: DevExpress.Reporting.Viewer.Parameters.IParameterDescriptor

    #Property Value

    Type Description
    IParameterDescriptor

    An IParameterDescriptor object that stores information about a report parameter.

    #Remarks

    The following snippet hides delete actions only for the parameter1 parameter in the Properties Panel, Field List, and Parameter Editor:

    js
    function customizeParameterProperties(sender, args) {
        if (args.parameter) {
            const name = args.parameter.name;
            if (name === 'parameter1') {
                args.editOptions.allowDelete = false;
            }
        }    
    }
    

    #parameterPanelLayoutItem Property

    An object that stores information about parameter panel layout items. This object contains the item name and its type (parameter/group/separator).

    #Declaration

    TypeScript
    parameterPanelLayoutItem: any

    #Property Value

    Type
    any

    #Remarks

    The following code snippet disables the Title editor for all parameter groups:

    js
    function customizeParameterProperties(sender, args) {
        if (args.parameterPanelLayoutItem.layoutItemType === 'Group') {
            const titleEditor = args.getEditor('title')
            // Disable the Title editor.
            titleEditor.disabled = true;
        }    
    }