遍历整个gridview的行，寻找每行的控件
foreach (GridViewRow g in grv.Rows)
{
CheckBox ck = (CheckBox)g.FindControl("chkCheck");
if (ck.CssClass == k)//CssClass是外部绑定的属性，例如<%#Eval("**")%>
{
ck.Checked = true;
}
ck.Enabled = false;
}

gridview表格中控件的click事件，并获取该控件
protected void chkCheck_CheckedChanged(object sender, EventArgs e)
{
CheckBox ck = (CheckBox)sender;
GridViewRow gvr = ck.NamingContainer as GridViewRow;
CheckBox chk = (CheckBox)gvr.Cells[9].FindControl("chkCheck0");
if (ck.Checked == true)
{
chk.Enabled = false;
}
else
{
chk.Enabled = true;
}
}

GridView中模板列中的控件 获取所在行
protected void LinkButton1_Click(object sender, EventArgs e)
{
LinkButton linkbutton = sender as LinkButton;
GridViewRow gvr = linkbutton.NamingContainer as GridViewRow;
CheckBox chk=(CheckBox)gvr.FindControl("chkSelect");
}
这个时候可以通过chk变量获取改行控件chkSelect的属性

结合ScriptManager和UpdatePanel，实现Gridview内部局部刷新
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:GridView ID="grvApply" runat="server" AutoGenerateColumns="False"
Width="783px">
<Columns>
《%此部分为gridview内部内容，可以有控件，控件可以回发，控件每次回发都是gridview内部在刷新，页面内除gridview部分外，均不刷新%》
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>

web页面实现打印功能【从csdn获得方法，留着用，方法也测试，可以使用】
<script language="javascript" type="text/javascript">
var HKEY_Root, HKEY_Path, HKEY_Key;
HKEY_Root = "HKEY_CURRENT_USER";
HKEY_Path = "\\Software\\Microsoft\\Internet Explorer\\PageSetup\\";
//设置网页打印的页眉页脚为空
function PageSetup_Null() {
try {
var Wsh = new ActiveXObject("WScript.Shell");
HKEY_Key = "header";
Wsh.RegWrite(HKEY_Root + HKEY_Path + HKEY_Key, "");
HKEY_Key = "footer";
Wsh.RegWrite(HKEY_Root + HKEY_Path + HKEY_Key, "");
}
catch (e)
{ }
}
function printpage(myDiv){ //DIV控制打印
//var newstr = document.all.item(myDiv).innerHTML;
var newstr = document.getElementById(myDiv).innerHTML;
// alert(newstr);
var oldstr = document.body.innerHTML;
document.body.innerHTML = newstr;
window.print();
document.body.innerHTML = oldstr;
return false;
}
function preview() {
PageSetup_Null();
bdhtml=window.document.body.innerHTML;
sprnstr="<!--startprint-->";
eprnstr="<!--endprint-->";
prnhtml=bdhtml.substr(bdhtml.indexOf(sprnstr)+17);
prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr));
window.document.body.innerHTML=prnhtml;
window.print();
}
</script>
<input class="Noprn" type="button" onclick="window.print()" value="打印"/>
<input type="button" name="print" value="预览并打印" onclick="preview()"/>
<input type="button" id="bt" onclick="javascript:printpage('myDiv')" value="DIV打印" />
有三种形式，直接打印，预览打印，DIV形式的打印

GridView分页的实现


要在GridView属性中将以下属性改为相应值
//实现分页
AllowPaging="true"
//一页数据10行
PageSize="10"
// 分页时触发的事件
OnPageIndexChanging="GridView1_PageIndexChanging"
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
// 得到该控件
GridView theGrid = sender as GridView;
int newPageIndex = 0;
if (e.NewPageIndex==-3)
{
//点击了Go按钮
TextBox txtNewPageIndex = null;
//GridView较DataGrid提供了更多的API，获取分页块可以使用BottomPagerRow 或者TopPagerRow，当然还增加了HeaderRow和FooterRow
GridViewRow pagerRow = theGrid.BottomPagerRow;
if (pagerRow != null)
{
//得到text控件
txtNewPageIndex = pagerRow.FindControl("txtNewPageIndex") as TextBox;
}
if ( txtNewPageIndex!= null)
{
//得到索引
newPageIndex = int.Parse(txtNewPageIndex.Text) - 1;
}
}
else
{
//点击了其他的按钮
newPageIndex = e.NewPageIndex;
}
//防止新索引溢出
newPageIndex = newPageIndex < 0 ? 0 : newPageIndex;
newPageIndex = newPageIndex >= theGrid.PageCount ? theGrid.PageCount - 1 : newPageIndex;
//得到新的值
theGrid.PageIndex = newPageIndex;
//重新绑定
GridView1.DataSource = dt;//dt代表数据
GridView1.DataBind();
}