[英]Access EditItemTemplate from CodeBehind
我在处理 EditItemTemplate 时遇到问题。
我想要做的是更新我的TextBox txt_name
但我无法获得用户进入的内容而且我在代码隐藏处获得了旧值。
我错过了什么吗?
<asp:GridView ID="GridView_account" runat="server" AutoGenerateColumns="false" ShowFooter="True"
OnRowCancelingEdit="GridView_account_RowCancelingEdit" OnRowEditing="GridView_account_RowEditing"
OnRowUpdating="GridView_account_RowUpdating" OnRowCommand="GridView_account_RowCommand"
OnRowDeleting="GridView_account_RowDeleting" OnSelectedIndexChanged="GridView_account_SelectedIndexChanged"
DataKeyNames="UID" Height="110px" Width="497px">
<Columns>
<asp:TemplateField HeaderText="UID" SortExpression="UID">
<ItemTemplate>
<asp:Label ID="label_accid" runat="server" Text='<%# Bind("UID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="User Name (required)" SortExpression="NyA">
<EditItemTemplate>
<asp:TextBox ID="txt_name" runat="server" Text='<%# Bind("NyA") %>'/>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txt_newname" runat="server"></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="label_name" runat="server" Text='<%# Bind("NyA") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Email Address (required)" SortExpression="eMail">
<EditItemTemplate>
<asp:TextBox ID="txt_email" runat="server" Text='<%# Bind("eMail") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox ID="txt_newemail" runat="server"></asp:TextBox>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="label_email" runat="server" Text='<%# Bind("eMail") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Options" ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="LinkButton_update" runat="server" CausesValidation="True" CommandName="Update"
Text="Update"></asp:LinkButton>
<asp:LinkButton ID="LinkButton_cancel" runat="server" CausesValidation="False" CommandName="Cancel"
Text="Cancel"></asp:LinkButton>
<asp:LinkButton ID="LinkButton_delete" runat="server" CausesValidation="False" CommandName="Delete"
Text="Delete"></asp:LinkButton>
</EditItemTemplate>
<FooterTemplate>
<asp:LinkButton ID="LinkButton_addnew" runat="server" CausesValidation="False" CommandName="AddNew"
Text="Add New"></asp:LinkButton>
</FooterTemplate>
<ItemTemplate>
<asp:LinkButton ID="LinkButton_edit" runat="server" CausesValidation="False" CommandName="Edit"
Text="Edit"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Manage Role" ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="Selectbtn" runat="server" CausesValidation="False" CommandName="Select"
Text="Select"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
protected void GridView_account_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
user u = Business.GetUser(((Label)GridView_account.Rows[e.RowIndex].FindControl("label_accid")).Text);
//HERE'S MY PROBLEM!
u.fullname = ((TextBox)GridView_account.Rows[e.RowIndex].FindControl("txt_name")).Text;
//txt_name is returning the old value and not the one the user has input recently.
Business.UpdateUser(u);
GridView_account.EditIndex = -1;
fillgridview();
}//
绑定网格时是否检查 Page IsPostback? 如果是回发,则不需要在 Page_Load 中重新绑定它,否则您将丢失新值,因为 Page Init、Page Load 事件发生在其他事件之前,例如 Grid Updating 事件。
可能是您在每个 page_load 事件上绑定您的网格。 如果是这样,你需要这样的东西:
protected void Page_Load(object sender, EventArgs e)
{
if(!Page.IsPostBack)
{
GridView_account.DataSource = "data source";
GridView_account.DataBind();
}
}
或代替
if(!Page.IsPostBack)
您可以使用
if (GridView_account.EditIndex == -1)
这会检查网格是否处于编辑模式。 如果网格未处于编辑模式,您可以将网格与数据源绑定。
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