关于网友提出的“ gridview如何增加空行？”问题疑问，本网通过在网上对“ gridview如何增加空行？”有关的相关答案进行了整理，供用户进行参考，详细问题解答如下：
问题： gridview如何增加空行？
描述: 在GridView中，添加一个空的行，然后让用户输入数据，最后保存。
请问，如何实现？
解决方案1: 这个我看行：
http://www.cnblogs.com/lgzh3/archive/2008/10/23/1318119.html
解决方案2: ascx.cs
public partial class Alarm_AlarmNoticeAdd : PageBase
{
Troika.Gps.BLL.Alarm_NoticeSet_Detail bll = new Troika.Gps.BLL.Alarm_NoticeSet_Detail();
//public string gEditIndex = "aaa";
protected void Page_Load(object sender, EventArgs e)
{
Ajax.Utility.RegisterTypeForAjax(typeof(Alarm_AlarmNoticeAdd));
if (!Page.IsPostBack)
{
this.btnButton.Attributes.Add("onclick", "return check(this.form)");
//获取表结构
ViewState["ds"] = bll.GetList(" NoticeSetID=0") ;
BindGrid();
}
}
////获取datagrid的EditIndex
//[Ajax.AjaxMethod()]
//public string GetEditIndex()
//{
// return gEditIndex;
//}
///
/// 绑定数据源
///
public void BindGrid()
{
DataView dv = ((DataSet)ViewState["ds"]).Tables[0].DefaultView;
if (dv.Count < 1)
{
addRow();
}
else
{
dv.Sort = "SetDetailID";
DataGrid.DataSource = dv;
DataGrid.DataBind();
}
}
///
/// 删除
///
public void DataGrid_Delete(object sender, DataGridCommandEventArgs e)
{
string id = DataGrid.DataKeys[(int)e.Item.ItemIndex].ToString();
DataSet ds = ((DataSet)ViewState["ds"]);
ds.Tables[0].Rows[(int)e.Item.ItemIndex].Delete() ;
ds.Tables[0].AcceptChanges();
ViewState["ds"] = ds;
BindGrid();
}
///
/// 添加
///
protected void add_Click(object sender, System.EventArgs e)
{
addRow();
}
//增加一个空行
public void addRow()
{
DataRow newRow;
int count = 0;
DataSet ds = ((DataSet)ViewState["ds"]);
if (ds != null)
{
DataView dv = ds.Tables[0].DefaultView;
count = ds.Tables[0].Rows.Count;<>
if (count > 0)
{
if (ds.Tables[0].Rows[count-1]["NoticeMan"].ToString().Equals(""))
{
DataGrid.DataSource = dv;
DataGrid.EditItemIndex = count - 1;
DataGrid.DataBind();
ViewState["ds"] = ds;
return;
}
}
count = ds.Tables[0].Rows.Count + 1;
newRow = ds.Tables[0].NewRow();
newRow["SetDetailID"] = count;
newRow["NoticeMan"] = "";
newRow["UnitName"] = "";
/>
newRow["PhoneNum"] = "";
newRow["NoticeType"] = 0;
ds.Tables[0].Rows.Add(newRow);
dv = ds.Tables[0].DefaultView;
dv.Sort = "SetDetailID";
DataGrid.DataSource = dv;
DataGrid.EditItemIndex = count - 1;
DataGrid.DataBind();
ViewState["ds"] = ds;
}
}<>
///
/// 修改
/>
///
public void DataGrid_Edit(object sender, DataGridCommandEventArgs e)
{
DataGrid.EditItemIndex = e.Item.ItemIndex;
// gEditIndex = e.Item.ItemIndex.ToString();
BindGrid();
}
///
/// 取消
///
public void DataGrid_Cancel(object sender, DataGridCommandEventArgs e)
{
DataGrid.EditItemIndex = -1;
BindGrid();
}
///
/// 更新
///
public void DataGrid_Update(object sender, DataGridCommandEventArgs e)
{
string strErr;
TextBox EditText = null;
//取得当前行
int row = Convert.ToInt32(e.Item.ItemIndex);
//获取当前的主键
int SetDetailID = Convert.ToInt32(DataGrid.DataKeys[row]);
ExtendWebControls.DropDownListExtend ctr = (ExtendWebControls.DropDownListExtend)e.Item.FindControl("DropDownListExtend1");
string NoticeMan = ctr.Text;
////验证通知人
//if (NoticeMan.Equals(""))
//{
// strErr = "通知人不能为空";
// MagicAjax.AjaxCallHelper.Write("alert('" + strErr + "');");
// //需要重新绑定
// BindGrid();
// return;
//}
EditText = (TextBox)e.Item.FindControl("txtUnitName");
string UnitName = EditText.Text;
////验证所属单位
//if (UnitName.Equals(""))
//{
// strErr = "所属单位不能为空";
// MagicAjax.AjaxCallHelper.Write("alert('" + strErr + "');");
// //需要重新绑定
// BindGrid();
// return;
//}
EditText = (TextBox)e.Item.FindControl("txtPhoneNum");
string PhoneNum = EditText.Text;
CheckBoxList list = (CheckBoxList)e.Item.FindControl("cblNoticeType");
int NoticeType = 0;
if (list.Items[0].Selected == true && list.Items[1].Selected == true)
{
NoticeType = 3;
}
else if (list.Items[0].Selected == true)
{
NoticeType = 1;
}
else if (list.Items[1].Selected == true)
{
NoticeType = 2;
}
////验证通知方式
//if (NoticeType==0)
//{
// strErr = "通知方式不能为空";
// MagicAjax.AjaxCallHelper.Write("alert('" + strErr + "');");
// //需要重新绑定
// BindGrid();
// return;
//}
//用户帐号,在HASHTABLE的值里面去找
ctr.Values = GetUserToHashTable(Session["UnitID"].ToString());
string NoticeAccount = "";
Hashtable hashtable = ctr.Values;
foreach (DictionaryEntry de in hashtable)
{
string temp = de.Key.ToString();
string[] tempary = temp.Split(',');
if (tempary[1].Equals(NoticeMan))
{
NoticeAccount = tempary[0];
break;
}
}
DataSet ds = (DataSet)ViewState["ds"];
//这边判断，用户姓名不能重复
DataTable dt = ds.Tables[0];
bool flag = true;
for (int i = 0; i < dt.Rows.Count; i++)
{
if (dt.Rows[i]["NoticeMan"].ToString().Equals(NoticeMan) && row!=i)
{
flag = false;
break;
}
}
if (flag)
{
DataRow updateRow = ds.Tables[0].Rows[row];
updateRow["NoticeAccount"] = NoticeAccount;
updateRow["NoticeMan"] = NoticeMan;
updateRow["UnitName"] = UnitName;
updateRow["PhoneNum"] = PhoneNum;
updateRow["NoticeType"] = NoticeType;
ds.Tables[0].Rows[row].AcceptChanges();
ViewState["ds"] = ds;
addRow();
}
else
/>
{
strErr = "更新失败，用户名不能重复";
MagicAjax.AjaxCallHelper.Write("alert('" + strErr + "');");<>
}
}
}
解决方案3:
<%# DataBinder.Eval(Container.DataItem, "PhoneNum")%>
<>
runat="server" />
' runat="server">' runat="server">
/>
系统提示
短信提示
CausesValidation="false" runat="server" ID="Imagebutton1" />
CausesValidation="false" runat="server" ID="ImagebuttonDel" />
CausesValidation="false" runat="server" ID="Imagebutton3" />
CausesValidation="false" runat="server" ID="Imagebutton2" />
解决方案4: 可以动态添加Footer
单击添加就把GridView的ShowFooter属性设置为true。
单击保存就把GridView的ShowFooter属性设置为false。
效果很不错，LZ试试~~
解决方案5: Grid不是要绑定DataTable吗，在DataTable里AddNew一个新行就好了。
解决方案6: http://www.cnblogs.com/lgzh3/archive/2008/10/23/1318119.html
解决方案7: DataSet ds；
DataRow dr = ds.Tables[0].NewRow();
dr[0] = System.Int32.Parse("0");
dr[1] = "";
dr[2] = "";
ds.Tables[0].Rows.InsertAt(dr, 0);
Gridview1.DataSource = ds;
Gridview1.DataBind();
解决方案8: http://topic.csdn.net/u/20081207/14/65a7da2e-9255-43cc-b819-75bc67e4d753.html
解决方案9: 看2楼的回答
http://topic.csdn.net/u/20081207/14/65a7da2e-9255-43cc-b819-75bc67e4d753.html
解决方案10: 动态地控制数据源datatable
新增一个空记录
