再问: GridView的rowediting里为什么findcontrol不到控件???求助高人

[netspies]

先说说我的情况

1. GridView是AutoGenerateColumns="True",即列是自动生成的，但是由于各种需要，还添加了自己摸板列,如:
<asp:TemplateField HeaderText="详细情况">
<ItemTemplate>
<a href='bdgl03.aspx?ID=<%# DataBinder.Eval(Container.DataItem,"ID") %>'>详细情况</a>
</ItemTemplate>
<ItemStyle Width="30px" BorderWidth="1px" HorizontalAlign="Center" />
<HeaderStyle HorizontalAlign="Center" />
</asp:TemplateField>

2.生成表格的Sql语句是CS文件中给出的,即在 if (!IsPostBack)中进行绑定数据.

3.该控件要来更新数据，因此加入了如下代码：

<asp:TemplateField HeaderText="编辑" ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="True" CommandName="Update"
Text="更新"></asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Cancel"
Text="取消"></asp:LinkButton>
</EditItemTemplate>
<ItemStyle BorderWidth="1px" HorizontalAlign="Center" VerticalAlign="Middle" Width="120px" />
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit"
Text="编辑"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>

我的问题是:
当我点击"编辑",修改数据后，再点"更新",此时执行GridView_RowUpdating事件,需要获取当前行的"可编辑框"的内容,(由于我的列是自动生成的),没有用模板,因此每一个可编辑框没有名字,我用如下方法获取:
string ss = (this.myGridView.Rows[e.RowIndex].Cells[4]).ToString(); (其中4是列序号)

用此方法可以获取主键列的数值(不可编辑的显示数据),不能获取 可编辑框 中的数据.

请大家给个办法.

[netspies]

对上面问题的一些补充;

该控件中数据不能指定一个固定的表,根据页面参数来决定.所以不能进行模板绑定.

[莫名3]

<asp:GridView ID="GridView1" runat="server" Height="144px" Width="768px" AllowPaging="True" CellPadding="4" ForeColor="#333333"
GridLines="None" OnPageIndexChanging="GridView1_PageIndexChanging" PageSize="5" AutoGenerateColumns="false" OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating">
<Columns>
<asp:BoundField DataField="u_id" HeaderText="用户ID" ReadOnly="True"/>
<asp:BoundField DataField="u_name" HeaderText="用户名" />
<asp:BoundField DataField="u_age" HeaderText="用户年龄" />
<asp:BoundField DataField="u_sex" HeaderText="用户性别" />
<asp:BoundField DataField="u_phone" HeaderText="用户电话" />
<asp:BoundField DataField="u_email" HeaderText="用户Email" />
<asp:BoundField DataField="u_address" HeaderText="用户地址" />
<asp:CommandField HeaderText="选择" ShowSelectButton="true" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="true"/>
<asp:CommandField HeaderText="编辑" ShowEditButton="true" />
</Columns>
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#FFFBD6" ForeColor="#333333" />
<SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" />
<PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" />
<HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="Red" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>

--------------------------------------------------------------
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string sqlstr2 = "delete from Users where u_id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
SqlConnection con = new SqlConnection(str);
SqlCommand cmd = new SqlCommand(sqlstr2,con);
con.Open();
cmd.ExecuteNonQuery();
con.Close();
Databinds();
}
//更新的功能
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
SqlConnection con = new SqlConnection(str);
string sqlstr = "update Users set u_name='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',u_age='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',u_sex='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "',u_phone='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[4].Controls[0])).Text.ToString().Trim() + "',u_email='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[5].Controls[0])).Text.ToString().Trim() + "',u_address='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[6].Controls[0])).Text.ToString().Trim() + "'where u_id='"
+GridView1.DataKeys[e.RowIndex].Value.ToString()+"'";
SqlCommand cmd = new SqlCommand(sqlstr,con);
con.Open();
cmd.ExecuteNonQuery();
con.Close();
GridView1.EditIndex = -1;
Databinds();

}
//编辑的功能
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
Databinds();
}
//退出编辑
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
Databinds();
}

[insus]

参考这个:
http://download.csdn.net/source/397336

如果下载不了,请给版大留言:
http://webim.csdn.net/Messages/chenxhcc.ashx

如果看了这个例子,还是解决不了你的问题,Insus.NET无语了!

[netspies]

后面这个上不去,不过还是感谢你.

[zsj830120]

2楼的方法应该就可以的啊

[lxgss]

为什么我用2楼的方法，会出现这个原因
无法将类型为“System.Web.UI.DataBoundLiteralControl”的对象强制转换为类型“System.Web.UI.WebControls.TextBox”