我有自定义上传控件。该控件具有带上载文档的gridview,第一列有用于通过单击“删除”按钮选择要删除的文档的复选框。上传控件包含在其他用户控件中,几乎在应用程序的任何地方都可以正常工作,除了在一个控件上。问题是当我检查某个文档以进行删除时,代码执行复选框的checked属性为false。在gridview中检查复选框,在c#codebehind checked property中是false
<asp:GridView ID="gvFiles" runat="server" AutoGenerateColumns="false" ShowHeader="true"
CssClass="DataGrid" Width="100%" OnRowDataBound="gvFiles_RowDataBound">
<HeaderStyle HorizontalAlign="left" CssClass="UploadControlGridHeader" />
<RowStyle CssClass="dlcell" />
<EditRowStyle CssClass="dlsell" />
<Columns>
<asp:TemplateField HeaderText="Delete">
<ItemStyle Width="8%" HorizontalAlign="Center" />
<ItemTemplate>
<asp:CheckBox ID="chkFile" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
,这是删除按钮事件
protected void btnDelete_Click(object sender, EventArgs e)
{
for (int i = 0; i < gvFiles.Rows.Count; i++)
{
CheckBox chk = (CheckBox)gvFiles.Rows[i].Cells[0].FindControl("chkFile");
if (chk.Checked)
{
// If file is marked/checked to be deleted
// then delete it.
DeleteFile(i);
}
}
Session[KEY_VIEWSTATEFILES] = this.FileList;
// Repopulate gridview
BindToGridView();
// Call command to keep same visible screen.
CustomCommandEventArgs command = new CustomCommandEventArgs(COMMAND_FILE_DELETED, null);
OnHappyCommand(command);
}
检查您有控制权的页面上是否启用了viewstate。检查页级和控制级.. – 2010-08-30 09:21:40