如何在DevExpress ASPxGridView中进行编辑

<dxwgv:GridViewCommandColumn VisibleIndex="0">

<EditButton Visible="True" Text="修改" />

<DeleteButton Visible="true" Text="删除" />

<NewButtonVisible="True" Text="新建" />

<CancelButton Visible="true" Text="取消" />

<UpdateButton Visible="true" Text="保存" />

<ClearFilterButton Visible="true" Text="取消过滤" />

</dxwgv:GridViewCommandColumn>

编辑视图下控件的外观设置»更多DevExpress开发资源与帮助文档

<dx:GridViewDataMemoColumn ... PropertiesMemoEdit-Rows="4" EditFormSettings-ColumnSpan="2" />

或者

<dxwgv:GridViewDataMemoColumn FieldName="Notes" Visible="False">

<EditFormSettings RowSpan="4" ColumnSpan="2" />

</dxwgv:GridViewDataMemoColumn>

示例一： 绑定到IList并实现删除和修改

<dx:ASPxGridView runat="server" ID="gvImages" KeyFieldName="ImageId"

OnRowDeleting= "gvImages_RowDeleting" OnRowUpdating="gvImages_RowUpdating"

>

<SettingsEditing Mode="Inline" />

<SettingsBehavior ConfirmDelete="true" />

<Columns>

<dx:GridViewDataColumn FieldName="ImageId" Caption="ID" Visible="false" />

<dx:GridViewDataImageColumn FieldName="ThumbnailUrl" Caption="缩略图" PropertiesImage-DescriptionUrlField="ImageId" />

<dx:GridViewDataTextColumn FieldName="Description" Caption="说明" />

<dx:GridViewDataTextColumn FieldName="Keywords" Caption="关键字" />

<dx:GridViewCommandColumn Caption="编辑" >

<EditButton Visible="True" Text="修改" />

<DeleteButton Visible="True" Text="删除" />

<CancelButton Text="取消" />

<UpdateButton Text="保存" />

</dx:GridViewCommandColumn>

</Columns>

</dx:ASPxGridView>

// 展示

public void ShowArticleImages()

{

int articleId = Convert.ToInt32(Request.QueryString[ "articleId"])

IList <BlogArticleImage>images = BlogArticleImage.ListArticleImages(articleId)

this.gvImages.KeyFieldName = "ImageId"

this.gvImages.DataSource = images

this.gvImages.DataBind()

}

// 更新

protected void gvImages_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e)

{

int id = Convert.ToInt32(e.Keys[0])

string descript = Convert.ToString(e.NewValues[ "Description"])

string keywords = Convert.ToString(e.NewValues[ "Keywords"])

BlogArticleImage image = BlogArticleImage.Retrieve(id)

if (image != null)

{

image.Description = descript

image.Keywords = keywords

image.Persist()

}

e.Cancel = true

gvImages.CancelEdit()

ShowArticleImages()

}

// 删除

protected void gvImages_RowDeleting(object sender, DevExpress.Web.Data.ASPxDataDeletingEventArgs e)

{

int id = Convert.ToInt32(e.Keys[0])

BlogArticleImage image = BlogArticleImage.Retrieve(id)

if (image != null)

{

System.IO.File.Delete(Server.MapPath(image.ImageUrl))

System.IO.File.Delete(Server.MapPath(image.ThumbnailUrl))

image.Remove()

}

e.Cancel = true

gvImages.CancelEdit()

ShowArticleImages()

}

示例二： 控件访问权限控制及CRUD *** 作

<dx:ASPxGridView runat="server" ID="gv" Caption="基础网" KeyFieldName="ID" Width="3000"

OnRowDeleting= "gv_RowDeleting" OnRowUpdating="gv_RowUpdating" OnRowInserting="gv_RowInserting"

OnInitNewRow= "grid_InitNewRow" onhtmlrowcreated="gv_HtmlRowCreated" OnCellEditorInitialize="grid_CellEditorInitialize"

>

<Columns>

<dx:GridViewCommandColumn Caption="编辑" Width="60" >

<EditButton Visible="True" Text="修改" />

<DeleteButton Visible="true" Text="删除" />

<NewButtonVisible="True" Text="新建" />

<CancelButton Visible="true" Text="取消" />

<UpdateButton Visible="true" Text="保存" />

</dx:GridViewCommandColumn>

<dx:GridViewDataColumn FieldName="ID" Caption="ID"/>

<dx:GridViewDataColumn FieldName="CREATE_DT" Caption="创建时间"/>

<dx:GridViewDataColumn FieldName="CREATOR" Caption="创建人"/>

<dx:GridViewDataComboBoxColumn FieldName="UNIT" Caption="处理单位" >

<PropertiesComboBox EnableSynchronization="False" EnableIncrementalFiltering="True" DropDownStyle="DropDown" />

</dx:GridViewDataComboBoxColumn>

<dx:GridViewDataColumn FieldName="RESULT" Caption="处理结果" />

<dx:GridViewDataMemoColumn FieldName="ED_CMT" Caption="政企部核对结果" PropertiesMemoEdit-Rows="4" EditFormSettings-ColumnSpan="2" />

</Columns>

</dx:ASPxGridView>

// 普通状态下的命令按钮显隐

protected void gv_HtmlRowCreated(object sender, ASPxGridViewTableRowEventArgs e)

{

if (!gv.IsEditing &&e.RowType == DevExpress.Web.ASPxGridView.GridViewRowType.Data)

{

bool isAdmin = Common.IsInRoles(new string[] { WZWF.DAL.Roles.Admin })

string unit = gv.GetRowValues(e.VisibleIndex, "UNIT").ToString()

bool isAuth = Common.IsInRoles(

unit,

WZWF.DAL.Roles.EnterpriseDepartment,

WZWF.DAL.Roles.MaintainDepartment

)

// 修改按钮

WebControl btnModify = e.Row.Cells[0].Controls[0] as WebControl

btnModify.Visible = isAuth

// 新建按钮

WebControl btnAddNew = e.Row.Cells[0].Controls[1] as WebControl

btnAddNew.Visible = isAdmin

// 删除按钮

WebControl btnDelete = e.Row.Cells[0].Controls[2] as WebControl

btnDelete.Visible = isAdmin

}

}

// 编辑状态下的控件访问权限控制

// 管理员：unit, result, md_cmt, ed_cmt

// 政企部：ed_cmt

// 网络维护部：result, md_cmt

protected void grid_CellEditorInitialize(object sender, ASPxGridViewEditorEventArgs e)

{

if (gv.IsEditing)

{

// 受理单位下拉框

if (e.Column.FieldName == "UNIT")

{

ASPxComboBox combo = e.Editor as ASPxComboBox

using (DbClean db = new DbClean())

{

combo.DataSource = db.ListUnits()

combo.TextField = "ROLE"

combo.ValueField = "ROLE"

combo.DataBind()

}

}

// 新建状态除了id以外都可以编辑

if (gv.IsNewRowEditing)

{

e.Editor.ReadOnly = (e.Column.FieldName == "ID")

}

// 修改状态下根据角色可编辑部分数据

else

{

e.Editor.ReadOnly = true

if (e.Column.FieldName == "UNIT")

e.Editor.ReadOnly = !Common.IsInRoles(WZWF.DAL.Roles.Admin)

else if (e.Column.FieldName == "RESULT" || e.Column.FieldName == "MD_CMT")

e.Editor.ReadOnly = !Common.IsInRoles(WZWF.DAL.Roles.Admin, WZWF.DAL.Roles.MaintainDepartment)

else if (e.Column.FieldName == "ED_CMT")

e.Editor.ReadOnly = !Common.IsInRoles(WZWF.DAL.Roles.Admin, WZWF.DAL.Roles.EnterpriseDepartment)

}

}

// 可编辑控件设置背景色

e.Editor.BackColor = e.Editor.ReadOnly ? Color.White : Color.LightYellow

}

// 删除

protected void gv_RowDeleting(object sender, ASPxDataDeletingEventArgs e)

{

int id = Convert.ToInt32(e.Keys[0])

using (DbClean db = new DbClean())

db.DelBasicNet(id)

e.Cancel = true

gv.CancelEdit()

ShowData(ViewState[ "Unit"].ToString())

}

// 更新

protected void gv_RowUpdating(object sender, ASPxDataUpdatingEventArgs e)

{

string unit = Convert.ToString(e.NewValues[ "UNIT"])

string result = Convert.ToString(e.NewValues[ "RESULT"])

string edCmt = Convert.ToString(e.NewValues[ "ED_CMT"])

if (gv.IsEditing)

{

int id = Convert.ToInt32(e.Keys[0])

using (DbClean db = new DbClean())

db.ModBasicNet(id, ...)

}

e.Cancel = true

gv.CancelEdit()

ShowData(ViewState[ "Unit"].ToString())

}

// 新增

protected void grid_InitNewRow(object sender, ASPxDataInitNewRowEventArgs e)

{

e.NewValues[ "CREATOR"] = Page.User.Identity.Name

e.NewValues[ "CREATE_DT"] = System.DateTime.Now

}

protected void gv_RowInserting(object sender, ASPxDataInsertingEventArgs e)

{

string unit = Convert.ToString(e.NewValues[ "UNIT"])

string result = Convert.ToString(e.NewValues[ "RESULT"])

string edCmt = Convert.ToString(e.NewValues[ "ED_CMT"])

if (gv.IsNewRowEditing)

{

using (DbClean db = new DbClean())

db.AddBasicNet(.....)

}

e.Cancel = true

gv.CancelEdit()

ShowData(ViewState[ "Unit"].ToString())

}