.net技术，Gridview绑定问题,高手请进

Question

有这样一个问题
                 我有一个Gridview要绑定数据，其中一列是一个下拉框，这个下拉框有两项（两项的值分别人1，0），而且这两项都是人为加上去的，也就是说下拉框的值是固定的，但Gridview绑定值的时候，下拉框对应的列取出来的是一个值，然后要求页面登录时下拉框选中的项与读出来的值要相对应（比如说，取出来的值为0，则下拉框选中的项的值为0，反之则行踪的项的值为1）    请问这个问题怎么解决？               各位高手帮一下忙，进者有分，回春越准确，分越高。   谢谢了各位!!!!

Answer 1

  /// <summary>
        /// 获取选中DataGridView的行
        /// </summary>
        /// <param name="dgv"></param>
        /// <returns></returns>
        public static System.Data.DataRow CurrentRow(DataGridView dgv)
        {
            System.Data.DataRowView view = null;
            CurrencyManager MyCurrencyManager;
            MyCurrencyManager = dgv.BindingContext[dgv.DataSource, dgv.DataMember] as CurrencyManager;
            if (MyCurrencyManager.Position >= 0)
            {
                view = (System.Data.DataRowView)MyCurrencyManager.Current;
            }
            if (view != null)
            {
                return view.Row;
            }
            else
            {
                return null;
            }
        } System.Data.DataRow row = SystemManger.CurrentRow(dgvStuQK);//SystemManger是上面方法的类
          
            int id = int.Parse(row["Id"].ToString());//得到Gridview的值

Answer 2

在RowDataBound中事件中来选中呢？

Answer 3

<asp:GridView runat="server" ID="gvTest">
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                            <asp:DropDownList runat="server" ID="ddlTest">
                                <asp:ListItem Value="0" Selected='<%# Eval("id").ToString().Equals("0") %>'>0</asp:ListItem>
                                <asp:ListItem Value="1" Selected='<%# Eval("id").ToString().Equals("0") %>'>1</asp:ListItem>
                            </asp:DropDownList>
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
            </asp:GridView>

Answer 4

 int id = int.Parse(row["Id"].ToString());其中row["Id"]的Id是Gridview中的列名

Answer 5

1 .  查询数据源直接写上1，0，然后绑定 ，它能根据1，0自动select。
2 .  RowDataBound事件中，再作一次处理 。

Answer 6

<asp:GridView runat="server" ID="gvTest">
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                            <asp:DropDownList runat="server" ID="ddlTest">
                                <asp:ListItem Value="0" Selected='<%# Eval("id").ToString().Equals("0") %>'>0</asp:ListItem>
                                <asp:ListItem Value="1" Selected='<%# Eval("id").ToString().Equals("1") %>'>1</asp:ListItem>
                            </asp:DropDownList>
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
            </asp:GridView>

Answer 7

用RowDataBound事件判段，例如：
 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                if (e.Row.Cells[5].Text=="0")
                {
                    e.Row.Cells[5].Text = "0";
                }
                else 
                {
                    e.Row.Cells[5].Text = "1";
                }
               
            }
        }

Answer 8

        protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            DropDownList ddl = e.Row.FindControl("DropDownList1") as DropDownList;
            if (ddl != null)
                ddl.SelectedValue = e.Row.Cells[0].Text;
        }

Answer 9

//看不懂,这跟 GridView 有什么关系啊. 你试试
DropDownList ddl = new DropDownList();
Session.Add("abc", ddl.SelectedValue);  //保存下拉框的值DropDownList ddlsigle = new DropDownList();//登陆页的下拉框
ddlsigle.ClearSelection();
ddlsigle.Items.FindByValue(Session["abc"].ToString()).Selected = true;

Answer 10

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) 
        { 
            if (e.Row.RowType == DataControlRowType.DataRow) 
            { 
                if (e.Row.Cells[5].Text=="0") 
                { 
                    e.Row.Cells[5].Text = "0"; 
                } 
                else 
                { 
                    e.Row.Cells[5].Text = "1"; 
                } 
              
            } 
        }

Answer 11

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
int index = e.NewEditIndex;
DropDownList drop = (DropDownList)ViewUsers.Rows[index].Cells["下拉框所在列索引"].FindControl("DropDownList1");
drop.DataSource = 数据源(data());
drop.DataTextField = "Name";
drop.DataValueField = "Id";
drop.DataBind();
drop.SelectedIndex = data().Rows[index]["与下拉框对应的列"].ToString();
}

Answer 12

补充一句 要加这个判断
 if (e.Row.RowType == DataControlRowType.DataRow) 

Answer 13

试试这个:
this.ddl.SelectedValue=你取出来的值,看是0还是1了,要是字符串,如"1".
这样就行了.

Answer 14

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            DropDownList ddl = e.Row.FindControl("DropDownList1") as DropDownList;
            if (ddl != null)
                ddl.SelectedValue = e.Row.Cells[0].Text;
        }

Answer 15

如果已经存到数据库中，应该从表中读出值，然后赋值给DropDownList !!