ASP.Net Gridview复选框 [英] ASP.Net Gridview checkbox

问题描述

你好，

我有一个为用户内置安全性的asp应用程序.我有一个页面，其中列出了所有用户及其角色.当我单击一个用户时，它会向我显示他们分配给的所有角色，以及一些无法分配的角色.当用户检查新角色并单击确定"以其名称保存该角色时，我需要它.我已经在sql中创建了一个存储过程来做到这一点，但是我无法正确获取按钮后面的vb.这是我到目前为止的内容:

因此，基本上，我希望能够通过选中复选框并单击确定"来存储角色，然后如果我取消选中它，则会将用户从该角色中删除.

按钮后面的代码

Hi there,

I have an asp application which I have built in security for the users. I have a page where I list all users and their roles. When I click a user it shows me all the roles they are assigned to and some which are not but available to assign. I want it when the user checks a new role and click ok to save the role under their name. I have created a stored procedure in sql to do that but I just cant get the vb correct behind the button. Here is what I have so far:

So basically i want to be able to select a role by checking box and click ok to store it then if i uncheck it, it removes the user from that role.

Code behind the button

Protected Sub btnUpdateRole_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnUpdateRole.Click
        lblError.Text = ""
        Dim usergroup(0) As String
        usergroup(0) = ccode.wfgen(grdRoles.SelectedRow.Cells(1).Text)
        For Each row As GridViewRow In grdRoles.Rows
            Dim db As CheckBox = row.FindControl("CheckBox1")
            If db IsNot Nothing AndAlso db.Checked Then
                Try
                    ''Roles.AddUsersToRoles(usergroup, row.Cells(1).Text)
                Catch ex As Exception
                End Try
            Else
                Try
                    ''Roles.RemoveUserFromRoles(usergroup(0), row.Cells(1).Text)
                Catch ex As Exception
                End Try
            End If
        Next
        pnlAddCancel.Visible = False
        pnlRoles.Visible = False
        btnAddUser.Visible = True
        btnManageRoles.Visible = True
        GridView1.Columns(6).Visible = True
        GridView1.Columns(5).Visible = True
        GridView1.Columns(4).Visible = True
        GridView1.SelectedIndex = -1
    End Sub

asp.net页面(gridview)背后的代码

Code behind the asp.net page (gridview)

<pre lang="xml"><asp:GridView ID="grdRoles" runat="server" DataSourceID="SqlDataSource2" AutoGenerateColumns="False"<br />
            Width="100%" AllowSorting="True" DataKeyNames="Role_Name" Font-Names="Cambria"<br />
            Font-Size="Small"><br />
            <Columns><br />
                <asp:BoundField DataField="Role_Name" HeaderText="Role_Name" SortExpression="Role_Name"<br />
                    ItemStyle-BackColor="White"><br />
                    <ItemStyle BackColor="White" /><br />
                </asp:BoundField><br />
                <asp:TemplateField HeaderText="CheckBox" ShowHeader="False" SortExpression="CheckBox"<br />
                    ItemStyle-BackColor="White"><br />
                    <ItemTemplate><br />
                        <asp:CheckBox ID="CheckBox1" runat="server" Checked=''<%# Bind("Chk") %>'' /><br />
                    </ItemTemplate><br />
                    <ItemStyle BackColor="White" /><br />
                </asp:TemplateField><br />
            </Columns><br />
            <PagerSettings Mode="NumericFirstLast" /><br />
            <SelectedRowStyle BackColor="White" /><br />
            <HeaderStyle BackColor="#A9C8EF" ForeColor="White" /><br />
        </asp:GridView></pre><br />

在此先感谢

Thanks in advance

推荐答案

您好，
当您将复选框值分配给新的复选框项目时，您需要执行此操作
例如:
将chkItem暗淡为CheckBox
chkItem = DirectCast(< grid> .Rows(< index>).FindControl("chkCheck")，CheckBox)
< grid> :您的网格名称
< index> ;:行索引
chkCheck:列名，其中您具有复选框列

希望能帮助到你.让我知道:)

hi there,
u need to do this when u assign the checkbox value to ur new checkbox item
eg:
dim chkItem as CheckBox
chkItem = DirectCast(<grid>.Rows(<index>).FindControl("chkCheck"), CheckBox)
<grid> : name of ur grid
<index>: row index
chkCheck: column name where u have the checkbox column

hope it helps. let me know :)

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