Subclassed ASPxTextBox and error messages ...

Charles Thomas Blankenship — Thu, 03 Nov 2016 10:49:55 GMT

I've successfully subclassed an ASPxTextBox to work with StrataFrame using the following code ... it works quite well. The only problem I'm having is this, what code do I have to add in order to get that red arrow to appear next to it when a broken rule has been added for the field associated with it. See attached:

https://drive.google.com/file/d/0BzuGM0X0_h52bFF4WlN3VnpmeE0/view?usp=sharing

[codesnippet]

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Web.UI;

using DevExpress.Web.ASPxEditors;

using MicroFour.StrataFrame.Business;

using MicroFour.StrataFrame.UI;

using MicroFour.StrataFrame.UI.Web;

using MicroFour.StrataFrame.Extensibility;

namespace Crucible.Web.DevExStrataFrame

{

[ToolboxData("<{0}:sfASPxTextBox ID=sfASPxTextBox runat=server></{0}:sfASPxTextBox>")]

public class sfASPxTextBox: ASPxTextBox, IWebBusinessBindable

{

#region " Privates "

private string _BindingField = "";

private string _BindingProperty = "Text";

private string _BindingFormat = "";

private string _BusinessObjectName = "";

private BindingDirections _BindingDirection = BindingDirections.TwoWay;

private string _ErrorMessage = "";

private bool _InError = false;

private bool _IgnoreManageUIReadOnlyState = false;

#endregion

#region " Public Properties "

/// <summary>

/// The field on the business object to which this control is bound

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Category(BusinessMod.EDITOR_CATEGORY),

DefaultValue(""),

Description(BusinessMod.EDITOR_BINDINGFIELD_DESC),

Editor(Constants.TE_WebBindingFieldTypeEditor, typeof(System.Drawing.Design.UITypeEditor))]

public string BindingField

{

get { return _BindingField; }

set { _BindingField = value; }

}

/// <summary>

/// The property on the control that is bound to the data on the business object

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Category(BusinessMod.EDITOR_CATEGORY),

DefaultValue("Text"),

Description(BusinessMod.EDITOR_BINDINGPROPERTY_DESC),

Editor(Constants.TE_BindingPropertyEditor, typeof(System.Drawing.Design.UITypeEditor))]

public string BindingProperty

{

get { return _BindingProperty; }

set { _BindingProperty = value; }

}

/// <summary>

/// The format to display the data when the data is bound to the control.

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Description(BusinessMod.EDITOR_WEBBINDINGFORMAT_DESC),

Category(BusinessMod.EDITOR_CATEGORY),

DefaultValue("")]

public string BindingFormat

{

get { return _BindingFormat; }

set { _BindingFormat = value; }

}

/// <summary>

/// The name of the business object on the page to which this control is bound

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Category(BusinessMod.EDITOR_CATEGORY),

DefaultValue(""),

Description(BusinessMod.EDITOR_BUSINESSOBJECT_DESC),

Editor(Constants.TE_BusinessObjectNameTypeEditor, typeof(System.Drawing.Design.UITypeEditor))]

public string BusinessObjectName

{

get { return _BusinessObjectName; }

set { _BusinessObjectName = value; }

}

/// <summary>

/// Determines whether or not the control's state is automatically managed by the business object

/// to which it is bound

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Description(BusinessMod.EDITOR_IGNOREMANAGE_DESC),

Category(BusinessMod.EDITOR_CATEGORY),

DefaultValue(false)]

public bool IgnoreManageUIReadOnlyState

{

get { return _IgnoreManageUIReadOnlyState; }

set { _IgnoreManageUIReadOnlyState = value; }

}

/// <summary>

/// Specified whether the data is bound from the control to the data, vice versa, or both.

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Category(BusinessMod.EDITOR_CATEGORY),

Description(BusinessMod.EDITOR_WEBBINDINGDIRECTION_DESC)]

public BindingDirections BindingDirection

{

get { return _BindingDirection; }

set { _BindingDirection = value; }

}

#endregion

#region " Non-Browsable Properties "

/// <summary>

/// Determines if the control is editable by the user (wraps Control.Enabled)

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Browsable(false),

DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]

public bool BindingEditable

{

get { return this.Enabled; }

set { this.Enabled = value; }

}

/// <summary>

/// The error message that is displayed when the control is in error

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Browsable(false),

DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]

public string ErrorMessage

{

get { return _ErrorMessage; }

set { _ErrorMessage = value; }

}

/// <summary>

/// Determines if the control is in error and the error provider should be displayed

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Browsable(false),

DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]

public bool InError

{

get { return _InError; }

set { _InError = value; }

}

/// <summary>

/// Determines whether or not the control has bindings that are in addition to the primary data binding

/// </summary>

/// <value></value>

/// <remarks></remarks>

[Browsable(false)]

public bool HasAdditionalBindings

{

get { return false; }

}

#endregion

}

[/codesnippet]

RE: Subclassed ASPxTextBox and error messages ...

Charles Thomas Blankenship — Thu, 03 Nov 2016 10:49:55 GMT

Ben nailed it ... here is the solution:

[code]

    protected override void Render(System.Web.UI.HtmlTextWriter writer) {
        base.Render(writer);
        if (_InError) {
            writer.Write(BrokenRuleRenderer.RenderBrokenRule(this));
            writer.Flush();
        }
    }[/code]

StrataFrame Forum » StrataFrame Application Framework - V1 » WebForms (How do I?) » Subclassed ASPxTextBox and error messages ...

Subclassed ASPxTextBox and error messages ...

RE: Subclassed ASPxTextBox and error messages ...