自定义字段类型与FCKeditor结合

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LitwareFieldTypes

实现：FCKeditor这个多行文本编辑器，作为字段类型，添加到列表的栏里

问题：因为创建的这个字段类型是继承SPFieldMultiLineText，所以它的长度不能超过255字符

成功部署在242上，如图

1、创建栏位，选择“文本编辑器”类型

2、看到“说明（文本编辑器）文本编辑器”

3、新建页面的显示

解决问题：

法一：修改数据库

SELECT tp_Fields

FROM allLists

WHERE tp_ID = 'a6b094e6-8b4a-4b8e-83a1-cc3be3f2b3f6'

法二：修改XML文件

在fldtypes_Litware.xml中：

<?xml version="1.0" encoding="utf-8" ?>

<Field Name="TypeName">CompanySize</Field>

<Field Name="TypeDisplayName">文本编辑器</Field>

<Field Name="TypeShortDescription">文本编辑器</Field>

<Field Name="FieldTypeClass">LitwareFieldTypes.CompanySizeField, LitwareFieldTypes, Version=1.0.0.0, Culture=neutral, PublicKeyToken=74bad7277fe0d19e</Field>

</RenderPattern>

</FieldType>

</FieldTypes>

注意：1、如果修改了fldtypes_Litware.xml，需要在列表设置中，删除旧的栏位，重新创建这个自定义类型的新栏位。这样修改才能生效。

2、<Field Name="ParentType">Note</Field> ，Note可以解决字段最大255个字符长度的问题，如果设置Text则字段最大长度为255

工程代码：

除了fldtypes_Litware.xml之外,

LitwareFieldTypes.cs

using System;
using System.IO;
using System.Security.Permissions;
using System.Text;
using System.Xml;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using System.ComponentModel;
using System.Configuration;
using System.Diagnostics;
using FredCK.FCKeditorV2;
using System.Collections.Generic;

namespace LitwareFieldTypes
{

    // example of creating a custom field type
    public class CompanySizeField : SPFieldMultiLineText
    {

        /// <summary>
        /// Override the field rendering control to use the custom TreeList control
        /// </summary>
        ///
        public override Microsoft.SharePoint.WebControls.BaseFieldControl FieldRenderingControl
        {
            get
            {
                BaseFieldControl control = new CompanySizeFieldControl();

                control.FieldName = this.InternalName;
                return control;
            }
        }
        // Validate the string. If not valid, throw an SPFieldValidationException
        //public override string GetValidatedString(object value)
        //{
        //    if (this.Required || value.ToString().Equals(string.Empty))
        //    {
        //        throw new SPFieldValidationException("Company size not assigned");
        //    }
        //    return base.GetValidatedString(value);
        //}

        /// <summary>
        /// Null constructor
        /// </summary>
        /// <param name="fields"></param>
        /// <param name="fieldName"></param>

public CompanySizeField(SPFieldCollection fields, string fieldName)
: base(fields, fieldName) { }

public CompanySizeField(SPFieldCollection fields, string typeName, string displayName)
: base(fields, typeName, displayName) { }

}

    // custom field type uses helper class to initialize and render control
    public class CompanySizeFieldControl : BaseFieldControl
    {
        protected FCKeditor txtContent;

        public override object Value
        {
            get
            {
                this.EnsureChildControls();
                return this.txtContent.Value;
            }
            set
            {
                EnsureChildControls();
                this.txtContent.Value = (string)this.ItemFieldValue;
            }
        }

        protected override void CreateChildControls()
        {
            if (this.ControlMode == SPControlMode.Display)
            {
                base.CreateChildControls();
            }
            else
            {
                this.txtContent = new FCKeditor();
                this.txtContent.BasePath = "/_layouts/fckeditor/";
                this.txtContent.ToolbarSet = "Default";
                this.txtContent.Width = new Unit("600px");
                this.txtContent.Height = new Unit("300px");
                this.txtContent.ID = "aa";
                this.Controls.Add(this.txtContent);
            }
        }
    }
}