[英]Not able to fire the click event for a button inside the Item template in RADorgChart
我在項目模板內有一個按鈕,該模板在RadOrgChart(telerik控件)中可用。
<asp:UpdatePanel ID="uplDataHierarchy" runat="server" UpdateMode="Always">
<ContentTemplate>
<div id="divOrgChart" runat="server" style="width: 100%; height: 480px; overflow-y: auto">
<rad:RadOrgChart ID="radOrgChartHierarchy" runat="server" RenderMode="Lightweight" DisableDefaultImage="true" DataFieldID="ID" DataFieldParentID="PARENT_ID">
<ItemTemplate>
<rad:RadLabel runat="server" ID="RadLblName" Text='<%# Eval("NAME")%>' CssClass="fa-align-center" Font-Size="X-Small"></rad:RadLabel>
<br />
<rad:RadLabel runat="server" ID="RadLblPinCode" Text='<%# Eval("PINCODE")%>' CssClass="fa-align-center" Font-Size="X-Small"></rad:RadLabel>
<br />
<rad:RadLabel runat="server" ID="RadLblAdd" Text='<%# Eval("Address")%>' CssClass="fa-align-center" Font-Size="X-Small"></rad:RadLabel>
<br />
<asp:LinkButton ID="btnDetail" runat="server" CommandArgument='<%# Eval("ID") %>' Text="Get Detail" OnClick="btnDetail_Click" Font-Underline="false"></asp:LinkButton>
</ItemTemplate>
</rad:RadOrgChart>
<br></br>
</div>
</ContentTemplate>
<Triggers>
</Triggers>
</asp:UpdatePanel>
當我在沒有更新面板的情況下,單擊BtnDetail的事件會觸發完美。
但是由於我將其放在更新面板中,因此無法觸發按鈕的click事件。
我嘗試過
試圖在aspx中添加觸發器,例如:
<asp:AsyncPostBackTrigger ControlID="btnDetail" EventName="btnDetail_Click" />
但是這里拋出了錯誤:找不到控件,然后我使用NodeBound Event從后面的代碼中嘗試了它:
Protected Sub radOrgChartDealHierarchy_NodeDataBound(sender As Object, e As Telerik.Web.UI.OrgChartNodeDataBoundEventArguments) Handles radOrgChartDealHierarchy.NodeDataBound
Dim lnkBtnDetail As LinkButton = e.Node.GroupItems(0).FindControl("btnDetail")
將事件注冊到面板
Dim aspT = New AsyncPostBackTrigger()
aspT.ControlID = lnkBtnDetail.ToString()
aspT.EventName = "Click"
uplDataHierarchy.Triggers.Add(aspT)
通過腳本管理器重新設置事件
Dim scrPtMgr As ScriptManager = ScriptManager.GetCurrent(Me.Page)
scrPtMgr.RegisterAsyncPostBackControl(lnkBtnDetail)
End Sub
我也嘗試過執行js回發,即使我無法擊中服務器端的click事件。
等待響應。
經過4天的嘗試,我終於找到了解決方案。
由於LinkButton位於ItemTemplate內部,因此不會觸發服務器端事件。
因此,我們在這里可以執行以下操作:首先,在NodeDataBound click事件上,我們需要將客戶端事件添加到控件中:
Protected Sub radOrgChartDealHierarchy_NodeDataBound(sender As Object, e As Telerik.Web.UI.OrgChartNodeDataBoundEventArguments) Handles radOrgChartDealHierarchy.NodeDataBound
Dim lnkBtnDetail As LinkButton = e.Node.GroupItems(0).FindControl("btnDetail")
lnkBtnDetail.OnClientClick = "bindDetails(" & e.Node.ID.ToString() & ");"
End Sub
您還需要添加一個HiddenField來保留節點的ID
<asp:UpdatePanel ID="uplDataHierarchy" runat="server" UpdateMode="Always">
<ContentTemplate>
<div id="divOrgChart" runat="server" style="width: 100%; height: 480px; overflow-y: auto">
<asp:HiddenField ID="HdnFldSelectedILD_ID" runat="server" Value="0" />
<rad:RadOrgChart ID="radOrgChartHierarchy" runat="server" RenderMode="Lightweight" DisableDefaultImage="true" DataFieldID="ID" DataFieldParentID="PARENT_ID">
<ItemTemplate>
<rad:RadLabel runat="server" ID="RadLblName" Text='<%# Eval("NAME")%>' CssClass="fa-align-center" Font-Size="X-Small"></rad:RadLabel>
<br />
<rad:RadLabel runat="server" ID="RadLblPinCode" Text='<%# Eval("PINCODE")%>' CssClass="fa-align-center" Font-Size="X-Small"></rad:RadLabel>
<br />
<rad:RadLabel runat="server" ID="RadLblAdd" Text='<%# Eval("Address")%>' CssClass="fa-align-center" Font-Size="X-Small"></rad:RadLabel>
<br />
<asp:LinkButton ID="btnDetail" runat="server" CommandArgument='<%# Eval("ID") %>' Text="Get Detail" OnClick="btnDetail_Click" Font-Underline="false"></asp:LinkButton>
</ItemTemplate>
</rad:RadOrgChart>
<br></br>
</div>
</ContentTemplate>
<Triggers>
</Triggers>
</asp:UpdatePanel>
然后,您必須添加以下JS函數:在這里,您將獲得要設置為“隱藏字段”的節點的ID,並使用Form.submit()進行回發;
function bindDetails(id) {
document.getElementById("<%=HdnFldSelectedILD_ID.ClientID%>").value = id;
theForm.submit();
}
現在在頁面加載中檢查“隱藏字段”的值是否不為0,然后按以下步驟進行處理:
If HdnFldSelectedILD_ID.Value = 0 Then
Else
//Your custom logic where you can access server side Controls as well
LoadCustom(HdnFldSelectedILD_ID.Value)
End If
然后,在LoadCustom中,您可以使用服務器端控件進行操作,例如:
Private Sub LoadFields(nID As Decimal)
RadLblName.Text="Test"
End Sub
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