DevExpress事件

未分类

RowInserting/* 新增记录时，给实体类中字段列赋值保存到数据库；*/

protected void gvAll_RowInserting(object sender, DevExpress.Web.Data.ASPxDataInsertingEventArgs e)
{
    //e.NewValues["Author"] = currentUser;
    e.NewValues["CreateTime"] = DateTime.Now;
}

CellEditorInitialize/* 新增记录；枚举类下拉框选择显示*/切换到编辑模式，使您可以初始化细胞编辑

protected void gvAll_CellEditorInitialize(object sender, DevExpress.Web.ASPxTreeList.TreeListColumnEditorEventArgs e)
{
    if (e.Column.FieldName == "Type")
    {
        ASPxComboBox combo = e.Editor as ASPxComboBox;
        EnumHelper.SetListControl(combo, typeof(Module.Component.CatalogType));
    }
    else if (e.Column.FieldName == "LoginName")
        if (gvUsers.IsNewRowEditing)
            e.Editor.ReadOnly = false;
        else
            e.Editor.ReadOnly = true;
}

CustomColumnDisplayText/* 显示记录时；枚举类显示汉字;改变变量显示的格式；样式*/可以用来为任何细胞的自定义显示的文本

protected void ASPxGridView1_CustomColumnDisplayText(object sender, ASPxGridViewColumnDisplayTextEventArgs e)
{
    if (e.Column.FieldName == "type")
    {  
                e.DisplayText = cellValue.Substring(e.value) ; 
    }
    if (e.Column.FieldName == "Content")
        {
            if (e.Value != null)
            {
                string cellValue = e.Value.ToString();
                if (cellValue.Length > 60)
                    e.DisplayText = cellValue.Substring(0, 60) + "...";
            }
        }
}

OnCustomGroupDisplayText/* 显示记录时；改变Group变量显示的格式；样式*/

<dx:GridViewDataTextColumn FieldName="Type" VisibleIndex="0" Caption="审批类型" GroupIndex="1">
            </dx:GridViewDataTextColumn>
protected void gv_CustomGroupDisplayText(object sender, DevExpress.Web.ASPxGridViewColumnDisplayTextEventArgs e)
{
    switch (e.Value.ToString())
    {
        case "Person":
            e.DisplayText = "人员信息";
            break;
        case "PersonTest":
            e.DisplayText = "试验人员信息";
            break;
            }
    }

CommandButtonInitialize/* 增删该查按钮*/

protected void ASPxGridView1_CommandButtonInitialize(object sender, ASPxGridViewCommandButtonEventArgs e)
{
    if (e.ButtonType == ColumnCommandButtonType.New ||  e.ButtonType == ColumnCommandButtonType.Delete)
    {
        if (User.IsInRole("Admin"))
            e.Visible = true;
        else
            e.Visible = false;
    }
    if (e.ButtonType == ColumnCommandButtonType.Edit)
    {
        var obj = gvAll.GetRow(e.VisibleIndex) as ProjectApprovalModel;
       //var obj = (Article)gvAll.GetRow(e.VisibleIndex) ;
        e.Visible = currentUser == obj.Author && obj.CanEdit;
    }
}

CustomCallback/* 提交按钮*/

function gv_OnCustomButtonClick(s, e) {
            if (e.buttonID == "btnView") {
                window.open('ArticleView.aspx?id=' + s.GetRowKey(e.visibleIndex));
            } else if (e.buttonID == "btnSubmit") {
                if (confirm("确认提交通过此条信息？")) {
                    s.PerformCallback(s.GetRowKey(e.visibleIndex));
                }
            }
        }

<dx:ASPxGridView ID="gvAll" runat="server" AutoGenerateColumns="False" DataSourceID="XpoDs"  KeyFieldName="Oid"  OnCustomCallback="gvAll_CustomCallback"  >
<ClientSideEvents CustomButtonClick="function(s,e){gv_OnCustomButtonClick(s, e)}" />
<Columns>
    <dx:GridViewCommandColumn ShowNewButtonInHeader="true" ShowEditButton="true" ShowDeleteButton="true" VisibleIndex="0">
    <CustomButtons>
        <dx:GridViewCommandColumnCustomButton ID="btnView" Text="详情"></dx:GridViewCommandColumnCustomButton>
        <dx:GridViewCommandColumnCustomButton ID="btnSubmit" Text="提交"></dx:GridViewCommandColumnCustomButton>
    </CustomButtons>
    </dx:GridViewCommandColumn>

后台代码

protected void gvAll_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e)
{
    var obj = session.FindObject<Article>(CriteriaOperator.Parse("Oid=?", e.Parameters));
    obj.IsAuditing = true;
    obj.Save(); 
    gvAll.DataBind();
}

HtmlDataCellPrepared/数据单元内的套件中当对应表/枚举类变多选框/

htmldatacellprepared事件引发的每个数据单元内的套件中当对应表细胞已创建。您可以处理此事件以更改单个单元格的样式设置。

protected void gvAll_HtmlDataCellPrepared(object sender, ASPxGridViewTableDataCellEventArgs e)
        {
            if ((gvAll.EditingRowVisibleIndex == e.VisibleIndex && e.DataColumn.FieldName == "PropertieNames") && !gvAll.IsNewRowEditing) 
            {
               var cbl = gvAll.FindEditRowCellTemplateControl(gvAll.DataColumns["Properties"], "chxProperties") as ASPxCheckBoxList; 
                    var o = gvAll.GetRow(e.VisibleIndex) as Article; 
                var values = o?.Properties?.Split(',');
                if (values != null && values[0].Length>0)
                {
                    foreach (ListEditItem item in cbl.Items)
                    {
                        if (values.Contains(item.Value))
                            item.Selected = true;
                    }
                }
            }
        }

HtmlRowCreated/*列创建时/列序号

分组时 - 添加列序号

int _rowIndex;
        protected void gvAll_HtmlRowCreated(object sender, ASPxGridViewTableRowEventArgs e)
        {
            //序号
            if (e.RowType == GridViewRowType.Group)
            {
                _rowIndex = 0;
            }
            else if (e.RowType == GridViewRowType.Data)
            {
                _rowIndex++;
                if (!gvAll.IsEditing) // 编辑时，首行会回调错误
                    ((ProjectContractModel)gvAll.GetRow(e.VisibleIndex)).Num = _rowIndex;
                e.Row.Cells[3].Text = _rowIndex.ToString();
            }
        }

不分组时-添加列序号

protected void gvAll_HtmlRowCreated(object sender, ASPxGridViewTableRowEventArgs e)
        {
            //序号
           if (e.RowType == GridViewRowType.Data)
                    e.Row.Cells[1].Text = e.VisibleIndex.ToString();
        }

HtmlRowPrepared /*html页面数据行的样式（颜色）

protected void gvAll_HtmlRowPrepared(object sender, ASPxGridViewTableRowEventArgs e)
{
    if(!gvAll.IsEditing && gvAll.EditingRowVisibleIndex<0 && e.VisibleIndex>= 0 && e.RowType == GridViewRowType.Data)
    {
        var InspectDate = gvAll.GetRowValues(e.VisibleIndex, "InspectDate");
        var eq = gvAll.GetRow(e.VisibleIndex) as EquipmentTest;
        if (InspectDate != null && ((DateTime)InspectDate).Subtract(DateTime.Now).TotalDays < 30 && eq.IsFirstComplete && eq.EquipmentStatus == EquipmentStatus.Normal)
            e.Row.BackColor = System.Drawing.Color.Red;
    }
}