vb.net GridView 中的复选框获取值
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时间：2020-09-17 18:13:53 来源:igfitidea点击:
CheckBox in GridView get value
提问by Z.V
I have the following code
我有以下代码
HTML:
HTML：
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:TemplateField HeaderText="Checkbox">
<ItemTemplate>
<asp:CheckBox ID="chkb" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ID" Visible="false">
<ItemTemplate>
<asp:Label ID="lblId" runat="server" Text='<%# Eval("Id")%>'>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("Name")%>'>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Country">
<ItemTemplate>
<asp:Label ID="lblCountry" runat="server" Text='<%# Eval("Country")%>'>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Code behind:
后面的代码：
Protected Sub btnExcel_Click(sender As Object, e As EventArgs) Handles btnExcel.Click
Debug.WriteLine("Clicked")
For Each row As GridViewRow In GridView1.Rows
Dim chk As CheckBox = row.FindControl("chkb")
If chk.Checked Then
Dim lbl As Label = row.FindControl("lblId")
Debug.WriteLine(chk.Checked)
Debug.WriteLine(lbl.Text)
End If
Next
End Sub
Is there something wrong around the checkbox section? because I can get the ouput "Clicked" but can't seem to get the output for
复选框部分有问题吗？因为我可以获得输出“点击”但似乎无法获得输出
Debug.WriteLine(chk.Checked)
Debug.WriteLine(lbl.Text)
Also, I cannot get the value whether the chk.Checkedwhen I debug.
此外，我无法chk.Checked在调试时获得该值。
回答by Thirisangu Ramanathan
Try this:
尝试这个：
If Not Page.IsPostBack Then
GridView1.DataSourceID = dataTable
GridView1.DataBind()
End If
