保持dropdownlist選中值

    RowDataBound事件
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
    int i;
    for (i = 0; i < GridView1.Rows.Count; i++)
    {
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
    e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor='#FFFFCC'");
    e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");
    }
    }
    e.Row.Attributes["style"] = "Cursor:hand";
    //問(wèn)題分類下拉框綁定選中值
    if (((DropDownList)e.Row.FindControl("ddlProVar")) != null)
    {
    DropDownList ddlProVar = (DropDownList)e.Row.FindControl("ddlProVar");
    SetSelectedItem(ddlProVar, ((HiddenField)e.Row.FindControl("hdProVarState")).Value);
    }
    }
    /// <summary>
    /// 保存選定的dropdownlist值
    /// </summary>
    /// <param name="list"></param>
    /// <param name="value"></param>
    private void SetSelectedItem(System.Web.UI.WebControls.ListControl list, String value)
    {
    foreach (ListItem e in list.Items)
    {
    if (e.Text == value)
    {
    e.Selected = true;
    return;
    }
    else e.Selected = false;
    }
    }