[英]How to fire a button event from inside a repeater?
我已经完成了我的研究但是找不到在VB中执行以下操作的有效方法:
我知道我可以使用ItemCommand选项,但无法使其按预期工作。
ASP.NET
内置中继器项目
<asp:Button ID="btnSave" RunAt="Server"/>
VB.NET
Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As System.EventArgs)
sqlConn.Open()
For Each Item As RepeaterItem In rpt.Items
...
Next
sqlConn.Close()
End Sub
编辑:
经过SO的一些研究后,我发现其他事件而不是ItemCommand
并没有被Asp:Repeater
捕获,正如FlySwat在回答中说的那样。 所以你需要编写你的VB.NET
代码:
首先,在页面上声明ItemCommand
事件,如下所示:
Protected Sub rpt_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.RepeaterCommandEventArgs) Handles rpt.ItemCommand
If e.CommandName = "Save" Then
'Save
End If
End Sub
然后,在Asp:Button
里面标记Asp:Repeater
,你必须设置它CommandName
属性是这样的:
<Asp:Button ID="btnSave" runat="server" CommandName="Save" UseSubmitBehavior="false"/>
看一下这里了解有关UseSubmitBehavior
更多信息。
试试吧。
当按钮位于Repeater模板内时,您需要添加OnClick事件,您可以在Repeater控件的ItemDataBound event
上添加事件。
你的.aspx代码看起来像这样:
<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<asp:Button ID="btnSave" runat="server" Text="SomeText" />
</ItemTemplate>
</asp:Repeater>
代码隐藏
void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == Repeater1.AlternatingItem || e.Item.ItemType == Repeater1.Item)
{
var btn = e.Item.FindControl("btnSave") as Button;
if (btn != null)
{ // adding button event
btn.Click += new EventHandler(btn_Click);
}
}
}
void btn_Click(object sender, EventArgs e)
{
//write your code
}
在vb.net中
Private Sub Repeater1_ItemDataBound(sender As Object, e As RepeaterItemEventArgs)
If e.Item.ItemType = Repeater1.AlternatingItem OrElse e.Item.ItemType = Repeater1.Item Then
Dim btn = TryCast(e.Item.FindControl("btnSave"), Button)
If btn IsNot Nothing Then
' adding button event
btn.Click += New EventHandler(btn_Click)
End If
End If
End Sub
Private Sub btn_Click(sender As Object, e As EventArgs)
'write your code
End Sub
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