无法从Gridview获取值

本文关键字：获取 Gridview | 更新日期: 2023-09-27 17:50:35

你好，我有一个gridview命名为FolderGridView。在GridView中有一个模板字段，在模板字段中我指定了一个链接按钮。现在我无法从我的codeBehind中的linkButton获取值。

<asp:GridView ID="FolderGridView" runat="server"
        AutoGenerateColumns = "False" 
        AllowPaging ="True"  OnPageIndexChanging ="FolderGridView_PageIndexChanging" CellPadding="4" ForeColor="#333333" GridLines="None" 
        >
            <AlternatingRowStyle BackColor="White" />
        <Columns>
            <asp:TemplateField HeaderText="Select">
                <ItemTemplate>
                    <asp:CheckBox ID="FolderCheckBox" runat="server" />
                </ItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField HeaderText="Folder Name">
                <ItemTemplate>
                    <asp:LinkButton Text='<%#Eval("File Name")%>' PostBackUrl='<%# String.Format("InsideFolder.aspx?FolderName={0}",  Eval("File Name")   ) %>' runat="server" />
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
</asp:GridView>

my code Behind

for (int i = 0; i < FolderGridView.Rows.Count; i++)
    {
        CheckBox chk = (CheckBox)FolderGridView.Rows[i].FindControl("FolderCheckBox");
        if (chk.Checked == true)
        {
            string FileName = (string)FolderGridView.Rows[i].Cells[1].Text.ToString();
        }
    }

我已经调试了后面的代码部分。在FileName中，当我到达这一点时，我得到一个空字符串。如何从模板字段获取值呢?

无法从Gridview获取值

单元格中的文本在LinkButton控件内部，所以首先你必须获得GridView行的LinkButton控件，然后你可以访问text属性。下面的代码应该在您的情况下工作:

for (int i = 0; i < FolderGridView.Rows.Count; i++){
    CheckBox chk = (CheckBox)FolderGridView.Rows[i].FindControl("FolderCheckBox");
    if (chk.Checked == true){
       foreach (Control ctl in FolderGridView.Rows(i).Cells(1).Controls) {
           if (ctl is LinkButton) {
           string filename = ((LinkButton)ctl).Text;
           }
    }
}

用

替换链接按钮

编辑:LinkButton: 

<asp:LinkButton ID="LinkButton1"  AutoPostBack="True"  OnClick="someMethod" Text='<%#Eval("File Name")%>' PostBackUrl='<%# String.Format("InsideFolder.aspx?FolderName={0}",  Eval("File Name")   ) %>' runat="server" />

和

背后的代码
protected  void someMethod(object sender, EventArgs e)
        {
            foreach (GridViewRow item in GridView5.Rows)
            {
                CheckBox chk = (CheckBox)item.FindControl("FolderCheckBox");
                if (chk.Checked == true)
                {
                    string probname = chk.Text;
                }
            }
        }
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