如何使RadGrid仅根据单击的命令展开一个详细表？
如何使RadGrid仅根据单击的命令展开一个详细表？
提问于 2015-08-14 13:46:50
我有一个主视图和两个子视图。我希望主行上有命令按钮，这会使一个或另一个子表发生展开。当我处理ItemCommand事件时，我隐藏了将所有细节表设置为Visible=False，但它们在输出中仍然可见。
我尝试在ItemCommand事件中设置详细表的扩展和可见性，如下所示：
if (e.CommandName == "ExpandSomething")
{
item.Expanded = true;
foreach (var table in MyGrid.MasterTableView.DetailTables)
if (table.Name != "Something")
table.Visible = false;
}这对电网没有影响。
然后，我想，也许在事件周期的后期需要进行隐藏，所以我尝试了如下：
private string _activeChildView = null;
protected void ShowSingleChildTable(string name) //this is called from item command
{
_activeChildView = name;
}
private void Page_PreRender(object sender, EventArgs e)
{
if (_activeChildView != null)
foreach (var table in AdminGrid.MasterTableView.DetailTables)
if (table.Name != _activeChildView)
table.Visible = false;
}这两种方法都不起作用--两个网格都是可见的。
在处理不同事件时，我发现DataBinding事件是唯一将可见性设置为false工作的地方，但不幸的是，在ItemCommand之前触发，因此我无法确定是否按下了详细信息按钮。
对于有条件的细节视图还有其他的想法，如所描述的吗？
编辑，这是标记，如果您认为它会有帮助的话。我删除了不需要的列定义：
<asp:EntityDataSource ID="EntityDataSourceThinges" runat="server"
ConnectionString="name=MyProjectEntities"
EntitySetName="Thinges" DefaultContainerName="MyProjectEntities"
EnableDelete="true" EnableUpdate="true" EnableInsert="true"
Include="ThingSomethings"
OrderBy="it.Title"
Where="it.Title like '%' + @Title + '%' or @Title is null">
<WhereParameters>
<asp:ControlParameter ControlID="txtSearch" DefaultValue="%" Name="Title" PropertyName="Text" Type="String" />
</WhereParameters>
</asp:EntityDataSource>
<asp:EntityDataSource ID="EntityDataSourceThingSomethings" runat="server"
ConnectionString="name=MyProjectEntities"
EntitySetName="ThingSomethings" DefaultContainerName="MyProjectEntities"
EnableDelete="true" EnableUpdate="true"
AutoGenerateWhereClause="true">
<WhereParameters>
<asp:SessionParameter Name="ThingID" SessionField="ThingID" Type="Int32" />
</WhereParameters>
</asp:EntityDataSource>
<asp:EntityDataSource ID="EntityDataSourceImages" runat="server"
ConnectionString="name=MyProjectEntities"
EntitySetName="MyProjectImages" DefaultContainerName="MyProjectEntities"
EnableDelete="true" EnableUpdate="true" EnableInsert="true"
AutoGenerateWhereClause="true"
OrderBy="it.Sequence">
<WhereParameters>
<asp:SessionParameter Name="ThingID" SessionField="ThingID" Type="Int32" />
</WhereParameters>
</asp:EntityDataSource>
Search by title:
<asp:TextBox runat="server" ID="txtSearch" /><asp:Button runat="server" Text="Search" />
<telerik:RadGrid ID="DnnGrid1" runat="server"
DataSourceID="EntityDataSourceThinges"
ImagesPath="~/images"
AllowPaging="false" AllowSorting="true"
AllowAutomaticUpdates="true" AllowAutomaticInserts="true" AllowAutomaticDeletes="true">
<MasterTableView AutoGenerateColumns="false" CommandItemDisplay="TopAndBottom"
HierarchyLoadMode="ServerOnDemand" ExpandCollapseColumn-Visible="false"
DataKeyNames="ThingID">
<Columns>
...
<telerik:GridButtonColumn Text="Expand Something" CommandName="ExpandSomething" />
<telerik:GridButtonColumn Text="Expand Something Else" CommandName="ExpandSomethingElse" />
...
<telerik:GridButtonColumn ButtonType="ImageButton" CommandName="Delete" ConfirmText="Are you sure you want to permenently delete this record?" />
</Columns>
<DetailTables>
<telerik:GridTableView runat="server" Name="Images" DataKeyNames="MyProjectImageID" DataSourceID="EntityDataSourceImages"
AutoGenerateColumns="false"
AllowAutomaticUpdates="true" AllowAutomaticInserts="true" AllowAutomaticDeletes="true"
CommandItemDisplay="TopAndBottom">
<ParentTableRelation>
<telerik:GridRelationFields MasterKeyField="ThingID" DetailKeyField="ThingID" />
</ParentTableRelation>
<Columns>
...
</Columns>
</telerik:GridTableView>
<telerik:GridTableView runat="server" Name="Something" DataSourceID="EntityDataSourceThingSomethings"
AutoGenerateColumns="false"
AllowAutomaticUpdates="true" AllowAutomaticDeletes="true"
CommandItemDisplay="TopAndBottom" DataKeyNames="SomethingID,ThingID">
<ParentTableRelation>
<telerik:GridRelationFields MasterKeyField="ThingID" DetailKeyField="ThingID" />
</ParentTableRelation>
<Columns>
...
</Columns>
<EditFormSettings EditFormType="AutoGenerated" />
<CommandItemSettings ShowAddNewRecordButton="false" />
</telerik:GridTableView>
</DetailTables>
<EditFormSettings EditFormType="AutoGenerated" />
</MasterTableView>
</telerik:RadGrid>回答 1
Stack Overflow用户
回答已采纳
发布于 2015-08-14 17:54:37
请尝试使用下面的代码片段。
ASPX
<telerik:RadGrid ID="RadGrid1" runat="server" OnNeedDataSource="RadGrid1_NeedDataSource" OnDetailTableDataBind="RadGrid1_DetailTableDataBind"
OnItemCommand="RadGrid1_ItemCommand" AutoGenerateColumns="false">
<MasterTableView DataKeyNames="ID">
<Columns>
<telerik:GridBoundColumn DataField="ID" UniqueName="ID" HeaderText="ID">
</telerik:GridBoundColumn>
<telerik:GridButtonColumn Text="Expand Something" CommandName="ExpandSomething" />
<telerik:GridButtonColumn Text="Expand Something Else" CommandName="ExpandSomethingElse" />
</Columns>
<DetailTables>
<telerik:GridTableView runat="server" Name="Images" AutoGenerateColumns="false" CommandItemDisplay="TopAndBottom">
<Columns>
<telerik:GridBoundColumn DataField="ID" UniqueName="ID" HeaderText="ID">
</telerik:GridBoundColumn>
</Columns>
</telerik:GridTableView>
<telerik:GridTableView runat="server" Name="Something" AutoGenerateColumns="false" CommandItemDisplay="TopAndBottom">
<Columns>
<telerik:GridBoundColumn DataField="ID" UniqueName="ID" HeaderText="ID">
</telerik:GridBoundColumn>
</Columns>
</telerik:GridTableView>
</DetailTables>
</MasterTableView>
</telerik:RadGrid>方法1:在每一行中只显示一个子网格。
ASPX.CS
protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
dynamic data = new[] {
new { ID = 1, Name ="Name1"},
new { ID = 2, Name ="Name2"} };
RadGrid1.DataSource = data;
}
protected void RadGrid1_DetailTableDataBind(object sender, GridDetailTableDataBindEventArgs e)
{
GridDataItem parentItem = e.DetailTableView.ParentItem as GridDataItem;
if (e.DetailTableView.Name == "Images")
{
dynamic data = new[] {
new { ID = 11, Name ="Name11"},
new { ID = 12, Name ="Name12"} };
e.DetailTableView.DataSource = data;
}
else if (e.DetailTableView.Name == "Something")
{
dynamic data = new[] {
new { ID = 111, Name ="Name111"},
new { ID = 112, Name ="Name112"} };
e.DetailTableView.DataSource = data;
}
}
protected void RadGrid1_ItemCommand(object sender, GridCommandEventArgs e)
{
if (e.CommandName == "ExpandSomething")
{
GridDataItem item = e.Item as GridDataItem;
item.Expanded = true;
if (e.Item.HasChildItems)
{
item.ChildItem.NestedTableViews[0].Visible = false;
item.ChildItem.NestedTableViews[1].Visible = true;
}
}
else if (e.CommandName == "ExpandSomethingElse")
{
GridDataItem item = e.Item as GridDataItem;
item.Expanded = true;
if (e.Item.HasChildItems)
{
item.ChildItem.NestedTableViews[0].Visible = true;
item.ChildItem.NestedTableViews[1].Visible = false;
}
}
}方法2:在完整网格中只显示一个子网格。
ASPX.CS
protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
dynamic data = new[] {
new { ID = 1, Name ="Name1"},
new { ID = 2, Name ="Name2"} };
RadGrid1.DataSource = data;
}
protected void RadGrid1_DetailTableDataBind(object sender, GridDetailTableDataBindEventArgs e)
{
GridDataItem parentItem = e.DetailTableView.ParentItem as GridDataItem;
if (e.DetailTableView.Name == "Images")
{
dynamic data = new[] {
new { ID = 11, Name ="Name11"},
new { ID = 12, Name ="Name12"} };
e.DetailTableView.DataSource = data;
}
else if (e.DetailTableView.Name == "Something")
{
dynamic data = new[] {
new { ID = 111, Name ="Name111"},
new { ID = 112, Name ="Name112"} };
e.DetailTableView.DataSource = data;
}
}
protected void RadGrid1_ItemCommand(object sender, GridCommandEventArgs e)
{
if (e.CommandName == "ExpandSomething")
{
GridDataItem item = e.Item as GridDataItem;
item.Expanded = true;
if (e.Item.HasChildItems)
{
item.ChildItem.NestedTableViews[0].Visible = false;
item.ChildItem.NestedTableViews[1].Visible = true;
}
foreach (GridDataItem otheritem in RadGrid1.MasterTableView.Items)
{
if (otheritem.Expanded && item.GetDataKeyValue("ID").ToString() != otheritem.GetDataKeyValue("ID").ToString())
{
otheritem.Expanded = false;
}
}
}
else if (e.CommandName == "ExpandSomethingElse")
{
GridDataItem item = e.Item as GridDataItem;
item.Expanded = true;
if (e.Item.HasChildItems)
{
item.ChildItem.NestedTableViews[0].Visible = true;
item.ChildItem.NestedTableViews[1].Visible = false;
}
foreach (GridDataItem otheritem in RadGrid1.MasterTableView.Items)
{
if (otheritem.Expanded && item.GetDataKeyValue("ID").ToString() != otheritem.GetDataKeyValue("ID").ToString())
{
otheritem.Expanded = false;
}
}
}
}如果有任何担心的话请告诉我。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/32011698
复制相关文章
相似问题
腾讯云开发者
