一个简单的Checkbox Custom Field Type
这个字段是一个普通的Single line of text,作用就是显示一个Checkbox,checkbox 的value为这个Text字段的值。
效果图:
下面介绍制作过程:
1. 首先,写一个派生自标准Field Type的类,
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public class SPCheckboxField : SPFieldText
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{
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public SPCheckboxField(SPFieldCollection fields, string fieldName)
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: base(fields, fieldName)
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{
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}
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public SPCheckboxField(Microsoft.SharePoint.SPFieldCollection fields, string typeName, string displayName)
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: base(fields, typeName, displayName)
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{
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}
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public override Microsoft.SharePoint.WebControls.BaseFieldControl FieldRenderingControl
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{
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get
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{
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Microsoft.SharePoint.WebControls.BaseFieldControl checkboxFieldControl = new CheckboxFieldControl();
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checkboxFieldControl.FieldName = InternalName;
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return checkboxFieldControl;
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}
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}
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}
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2. 写一个UC 命名为CheckboxField.ascx:
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<%@ Control Language="C#" Debug="true" %>
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<%@ Assembly Name="Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
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<%@ Register TagPrefix="SharePoint" Assembly="Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" Namespace="Microsoft.SharePoint.WebControls" %>
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<SharePoint:RenderingTemplate ID="CheckboxFieldControl" runat="server">
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<Template>
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<asp:TextBox ID="txtUrl" Enabled="false" MaxLength="255" runat="server" Columns="50" />
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</Template>
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</SharePoint:RenderingTemplate>
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3. 写一个对应CheckboxField.ascx 的类:
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public class CheckboxFieldControl : BaseFieldControl
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{
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protected TextBox txtUrl;
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protected override string DefaultTemplateName
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{
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get
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{
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return "CheckboxFieldControl";
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}
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}
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public override object Value
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{
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get
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{
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EnsureChildControls();
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return txtUrl.Text.Trim();
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}
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set
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{
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EnsureChildControls();
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txtUrl.Text = (string)this.ItemFieldValue;
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}
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}
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public override void Focus()
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{
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EnsureChildControls();
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txtUrl.Focus();
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}
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protected override void CreateChildControls()
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{
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if (Field == null) return;
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base.CreateChildControls();
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if (ControlMode == Microsoft.SharePoint.WebControls.SPControlMode.Display)
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return;
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txtUrl = (TextBox)TemplateContainer.FindControl("txtUrl");
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if (txtUrl == null)
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throw new ArgumentException("txtUrl is null. Corrupted CheckboxField.ascx file.");
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txtUrl.TabIndex = TabIndex;
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txtUrl.CssClass = CssClass;
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txtUrl.ToolTip = Field.Title;
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}
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}
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4. 写一个xml:
fldtypes_CheckboxField.xml注意名字必须以fldtypes_开头.
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<?xml version="1.0" encoding="utf-8"?>
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<FieldTypes>
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<FieldType>
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<Field Name="TypeName">CheckboxField</Field>
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<Field Name="ParentType">Text</Field>
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<Field Name="TypeDisplayName">Checkbox Field</Field>
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<Field Name="TypeShortDescription">Checkbox Field</Field>
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<Field Name="UserCreatable">TRUE</Field>
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<Field Name="ShowInListCreate">TRUE</Field>
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<Field Name="ShowInSurveyCreate">TRUE</Field>
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<Field Name="ShowInDocumentLibraryCreate">TRUE</Field>
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<Field Name="ShowInColumnTemplateCreate">TRUE</Field>
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<Field Name="Sortable">FALSE</Field>
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<Field Name="AllowBaseTypeRendering">TRUE</Field>
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<Field Name="Filterable">FALSE</Field>
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<Field Name="FieldTypeClass">CheckboxCustomField.SPCheckboxField,CheckboxCustomField,Version=1.0.0.0,Culture=neutral,PublicKeyToken=5acbdc949ff711be</Field>
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<RenderPattern Name="DisplayPattern">
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<Switch>
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<Expr>
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<Column/>
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</Expr>
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<Case Value="">
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</Case>
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<Default>
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<HTML><![CDATA[<input type='checkbox' name='my_select' value=']]></HTML>
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<Column HTMLEncode="TRUE"/>
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<HTML><![CDATA[' />]]></HTML>
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</Default>
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</Switch>
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</RenderPattern>
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</FieldType>
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</FieldTypes>
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都是些配置的信息,最主要显示的部分是这里:
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<HTML><![CDATA[<input type='checkbox' name='my_select' value=']]></HTML>
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<Column HTMLEncode="TRUE"/>
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<HTML><![CDATA[' />]]></HTML>
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5. 这样就OK了,开始部署:
1) 将编译后dll放入GAC
2) 把UC放到C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\CONTROLTEMPLATES
3) 把xml放到C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\XML
4) 重启IIS
在create column会看到我们的Checkbox Field:
红色的就是这个custom field type,蓝色的是陈曦那个。