如何从标签复制到 GridView 中的文本框

Question

我已经 c# .Net Gridview，当我尝试将值从 Label 单元格复制到 Gridview 中的 TextBox 单元格时，TextBox 单元格更改为 Label !

在_RowCommand中：

row.Cells[2].Text = row.Cells[1].Text;

row.Cells[2].Text 在分配后从 TextBox 更改为 Label !

知道原因和解决方案吗？

备注：我添加了代码以进行更多解释。

.aspx代码：

<asp:GridView ID="GridView_Names" runat="server" 
                AutoGenerateColumns="False" DataKeyNames="Num" 
                OnRowDataBound="GridView_Names_RowDataBound"
                OnRowCommand="GridView_Names_RowCommand"
                AllowPaging="false"  >
                <Columns>
                    <asp:BoundField DataField="Num" >
                    </asp:BoundField>
                    <asp:BoundField DataField="Name1" >
                    </asp:BoundField>
                    <asp:TemplateField >
                        <ItemTemplate >
                            <asp:TextBox ID="Name2" runat="server" />
                        </ItemTemplate>
                    </asp:TemplateField> 
                    <asp:TemplateField HeaderText="Google" Visible="false" >
                        <ItemTemplate>
                            <asp:Button ID="Button_Copy" 
                                CommandArgument="<%# ((GridViewRow) Container).RowIndex %>" 
                                CommandName="OnClickButton_Copy" runat="server"/>
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns></asp:GridView>

后面的代码：

    protected void GridView_Names_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
            e.Row.Cells[2].Text = e.Row.Cells[1].Text; // Cells[2] changes from TextBox to Label !!!
    }
}
protected void GridView_Names_RowCommand(object sender, GridViewCommandEventArgs e)
{
    if (e.CommandName == "OnClickButton_Copy")
    {
        int index = Convert.ToInt32(e.CommandArgument);

        GridViewRow row = GridView_Names.Rows[index];
        GridView_Names.Rows[index].Cells[2].Text = row.Cells[1].Text; // Cells[2] changes from TextBox to Label !!!
    }

Answer 1

我应该使用此命令 (TextBox) 在 Gridview 中找到 TextBoxrow.FindControl("Name"):

protected void GridView_Names_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "OnClickButton_Copy")
{
    int index = Convert.ToInt32(e.CommandArgument);

    GridViewRow row = GridView_Names.Rows[index];
    //GridView_Names.Rows[index].Cells[2].Text = row.Cells[1].Text; // Cells[2] changes from TextBox to Label !!!
        TextBox txtName = (TextBox)row.FindControl("Name");
        txtName.Text= row.Cells[3].Text;

}

如何从标签复制到 GridView 中的文本框

How to Copy from Label to TextBox inside GridView

.net

c#

gridview