GridView控件与寻呼机TopAndBottom [英] GridView with Pager TopAndBottom
问题描述
我已经扩展ASP.NET中的标准GridView控件。基本上它是一样的,但分页和排序是通过回调完成。
我已经成功地创建了自己的PagerTemplate,但是当PagerSettings.Position设为首页它仅适用。我想有该寻呼机在顶部和底部的两个
我得到一个HttpException说:该表必须包含在头部,身体,那么页脚定单行部分
任何人都知道这可能是什么?
我已经尝试调用MakeAccessible()方法,但这并不能帮助。
code:
私人INT _IdColumnIndex = -1;公众覆盖对象的DataSource
{
得到
{
返回HttpContext.Current.Session [this.ClientID +_DataSource];
}
组
{
如果(!value.GetType()。等于(typeof运算(数据视图)))
抛出新的ArgumentException(只有System.Data.DataView被接受为DataGridView的数据源!); HttpContext.Current.Session [this.ClientID +_DataSource] =值;
}
}///<总结>
///设置默认设置。
///< /总结>
私人无效SetDefaultSettings()
{
base.AllowPaging = TRUE;
base.AllowSorting = TRUE;
base.ShowHeader = TRUE;
base.ShowFooter = TRUE;
base.PagerTemplate =新GridPagerTemplate(PAGER_ID,这一点);
base.PagerSettings.Position = PagerPosition.TopAndBottom;
base.PageSize = 10; AddSelectionCheckbox();
}//私人无效MakeAccessible()
// {
//如果(this.Rows.Count大于0)
// {
// //这将替换< TD>以<第i个并增加了scope属性
// this.UseAccessibleHeader = TRUE;// //这将增加的<&THEAD GT;和<&TBODY GT;分子
// this.HeaderRow.TableSection = TableRowSection.TableHeader;// //这增加了在<&TFOOT GT;元件。删除,如果你没有一个脚注行
// this.FooterRow.TableSection = TableRowSection.TableFooter;
//}
//}私人无效AddSelectionCheckbox()
{
模板列TF =新的TemplateField();
tf.HeaderText =;
tf.ItemTemplate =新CheckboxTemplate(ROW_CHECKBOX_ID); base.Columns.Add(TF);
}保护覆盖无效的OnInit(EventArgs的发送)
{
SetDefaultSettings(); base.DataBound + =新的EventHandler(DataGridView_DataBound);
base.RowDataBound + =新GridViewRowEventHandler(DataGridView_RowDataBound); base.OnInit(E);
}保护覆盖无效在preRender(EventArgs的发送)
{
base.On preRender(E);
//this.PaintRows();
//this.FormatCells(); //获取JavaScript这个DataGridView的,它包括在页面上。
串在scriptUrl = Page.ClientScript.GetWebResourceUrl(this.GetType(),Yakinix.UI.Controls.DataGridView.js);
Page.ClientScript.RegisterClientScriptInclude(的DataGridView,在scriptUrl); 字符串JS =功能DGV_MakeCallback(参数)+
{+
__theFormPostData =''; +
__theFormPostCollection =新的Array(); +
WebForm_InitCallback(); +
GetCallbackEventReference(DGV_Callback)+
;}; Page.ClientScript.RegisterClientScriptBlock(typeof运算(DataGridView中)的typeof(DataGridView中).FullName +DGV_MakeCallback,JS,真正的); 如果(this.HeaderRow!= NULL)
this.HeaderRow.TableSection = TableRowSection.TableHeader;
}私人字符串GetCallbackEventReference(字符串FUNC)
{
字符串callbackEventReference = Page.ClientScript.GetCallbackEventReference(这个说法,FUNC,'+客户端ID +',FALSE); 返回callbackEventReference;
}公共覆盖无效RenderBeginTag(HtmlTextWriter的作家)
{
writer.RenderBeginTag(HtmlTextWriterTag.Div); //< DIV>
base.RenderBeginTag(作家);
}公共覆盖无效RenderEndTag(HtmlTextWriter的作家)
{
base.RenderEndTag(作家);
writer.RenderEndTag(); //< / DIV>
}///<总结>
///呈现GridView控件和去除空白。它也是
///应用正确的格式。
///< /总结>
公共字符串RenderHtml()
{
使用(StringWriter的SW =新的StringWriter(CultureInfo.InvariantCulture))
{
//this.PaintRows();
//this.FormatCells(); 如果(this.HeaderRow!= NULL)
this.HeaderRow.TableSection = TableRowSection.TableHeader; this.UseAccessibleHeader =真;
this.RenderControl(新的HtmlTextWriter(SW));
字符串的html = sw.ToString(); 返回HTML;
}
}// TODO:样式的所有行匹配当前SORTEX pression列。
保护无效DataGridView_RowDataBound(对象发件人,GridViewRowEventArgs E)
{
// DataGridView中的GridView =(DataGridView中)发送; //如果(gridView.SortEx pression.Length大于0)
// {
// INT cellIndex = -1; // //找到对应的排序前pression列索引
//的foreach(在gridView.Columns的DataControlField场)
// {
//如果(field.SortEx pression == gridView.SortEx pression)
// {
// cellIndex = gridView.Columns.IndexOf(场);
//突破;
//}
//} //如果(cellIndex -1个)
// {
//如果(e.Row.RowType == DataControlRowType.Header)
// {
// //这是一个标题行,
// //设置排序风格
// e.Row.Cells [cellIndex] .CssClass + =(gridView.SortDirection == SortDirection.Ascendingsortascheader?:sortdescheader);
//}
//否则,如果(e.Row.RowType == DataControlRowType.DataRow)
// {
// //这是一个数据行
// e.Row.Cells [cellIndex] .CssClass + =(e.Row.RowIndex%2 == 0sortaltrow?:sortrow);
//}
//}
//} RenderDetailsRow(E);
}///<总结>
///渲染细节排,渲染时,这是隐藏的。单击详细信息链接,显示的行和更详细的数据显示,并且可以编辑。
///< /总结>
///< PARAM NAME =E>的<见CREF =System.Web.UI.WebControls.GridViewRowEventArgs/> 。例如包含事件数据< /参数>
私人无效RenderDetailsRow(GridViewRowEventArgs E)
{
//只添加一个细节行的DataRows
如果(假放;&安培; e.Row.RowType == DataControlRowType.DataRow)
{
表的表= e.Row.Parent如表; 如果(表!= NULL)
{
GridViewRow行=新GridViewRow(-1,-1,DataControlRowType.DataRow,DataControlRowState.Normal);
row.Style [HtmlTextWriterStyle.Display] =无; TableCell的rowCell =新的TableCell();
rowCell.ColumnSpan = this.Columns.Count;
rowCell.Height =新单元(100); row.Cells.Add(rowCell);
table.Rows.Add(行); 的HtmlAnchor htmlAhref =新的HtmlAnchor();
htmlAhref.HRef =JavaScript的:无效(0);;
htmlAhref.Attributes.Add(的onclick,ToggleElement('+ row.ClientID +'););
htmlAhref.InnerText =测试; e.Row.Cells [e.Row.Cells.Count - 1] .Controls.Add(htmlAhref);
}
}
}保护无效DataGridView_DataBound(对象发件人,EventArgs的发送)
{
FillPagerDetails(base.TopPagerRow);
FillPagerDetails(base.BottomPagerRow);
}私人无效FillPagerDetails(GridViewRow pagerRow)
{
如果(pagerRow!= NULL)
{
//从该行检索DropDownList的和Label控件。
DropDownList的分页= pagerRow.Cells [0] .FindControl(PAGER_ID)为DropDownList的; 如果(分页!= NULL)
{
pageList.Attributes.Add(的onchange,DataGridViewPage(THIS.VALUE,'+客户端ID +');); //页数添加到列表框
的for(int i = 0; I< base.PageCount;我++)
{
INT PAGENUMBER = I + 1; //创建一个列表项的再presents页面
列表项项=新的ListItem(的String.Format({0},PAGENUMBER),i.ToString()); //如果该页面已被选中,确保
//列表框选择所选页面
如果(我== base.PageIndex)
item.Selected = TRUE; //添加ListItem对象到的DropDownList的Items集合。
pageList.Items.Add(项目);
}
}
}
}保护覆盖无效InitializeRow(GridViewRow行的DataControlField []字段)
{
base.InitializeRow(行,场); 如果(row.RowType == DataControlRowType.Header)
{
的for(int i = 0; I< row.Cells.Count;我++)
{
row.Cells [I] .Controls.Clear(); 如果(row.Cells [I] .Text.Equals(CHKCOL,StringComparison.Ordinal))
{
复选框chkSelectAll =新的复选框();
chkSelectAll.ID =chkSelectAllRows;
row.Cells [I] .Controls.Add(chkSelectAll);
}
其他
{
row.Cells [I]。文本=的String.Format(CultureInfo.InvariantCulture,< A HREF = \\JavaScript的:DataGridViewSort({0},{2});无效(0)\\称号= \\{1} \\> {1}&下; / A>中,字段[I] .SortEx pression,字段[Ⅰ] .HeaderText,this.ClientID);
}
}
//如果(的ViewState [SORTEX pression]!= NULL)
// {
// INT指数;
//指数= 0; // GetHeaderCellIndex(的ViewState [SORTEX pression]的ToString());
//如果(指数!= -1)
// {
// //字面;
// //如果((SortDirection)的ViewState [SortDirection] == SortDirection.Ascending)
// // {
// //如果(string.IsNullOrEmpty(SortAscendingImageUrl))
// // {
// //字面=新文字();
// // literal.Text =&放大器;#8593;;
// // row.Cells [指数] .Controls.Add(字面);
// //}
// //其他
// // {
// // sortImage.ImageUrl = SortAscendingImageUrl;
// // row.Cells [指数] .Controls.Add(sortImage);
// //}
// //}
// //其他
// // {
// //如果(string.IsNullOrEmpty(SortDescendingImageUrl))
// // {
// //字面=新文字();
// // literal.Text =&放大器;#8595;;
// // row.Cells [指数] .Controls.Add(字面);
// //}
// //其他
// // {
// // sortImage.ImageUrl = SortDescendingImageUrl;
// // row.Cells [指数] .Controls.Add(sortImage);
// //}
// //}
//}
//}
}
否则,如果(row.RowType == DataControlRowType.DataRow)
{
的for(int i = 0; I< row.Cells.Count;我++)
{
如果(场[I] .HeaderText.Equals(ID,StringComparison.InvariantCultureIgnoreCase))
{
_IdColumnIndex = I;
打破;
}
}
}
}保护覆盖无效OnRowCreated(GridViewRowEventArgs E)
{
base.OnRowCreated(E); 如果(e.Row.RowType == DataControlRowType.Header)
{
// HtmlImage IMG =新HtmlImage();
//img.ID =lbCheckAll;
//img.Src =/img/btn_slct_all.gif;
//img.Alt =全选;
//img.Attributes.Add(\"onclick,SelectAllRows('+ this.ClientID +',真);返回false;);
//e.Row.Cells[0].Controls.Add(img);
}
否则,如果(e.Row.RowType == DataControlRowType.DataRow)
{
// AddCheckbox(E);
}
否则,如果(e.Row.RowType == DataControlRowType.Footer)
{
//e.Row.Cells[0].Text =sdsds;
}
}保护覆盖无效OnRowDataBound(GridViewRowEventArgs E)
{
base.OnRowDataBound(E); 如果(e.Row.RowType == DataControlRowType.DataRow)
{
// AddCheckbox(E); 如果(_IdColumnIndex!= -1)
e.Row.Cells [_IdColumnIndex]。文本=< A HREF = \\Details.aspx ID =+ e.Row.Cells [_IdColumnIndex]。文本+\\?>编辑< / A>中;
}
}公共覆盖无效排序(字符串SORTEX pression,SortDirection sortDirection)
{
DataView的DV = this.DataSource的数据视图; 如果(DV!= NULL)
{
dv.Sort = SORTEX pression ++(sortDirection == SortDirection.Ascending?ASC:DESC);
}
}#区域ICallbackEventHandler成员私人字符串callbackArg =的String.Empty;串ICallbackEventHandler.GetCallbackResult()
{
//保存状态,PageStatePersister,并将其放置Page.ClientState
System.Reflection.MethodInfo MI = typeof运算(页).GetMethod(SaveAllState,System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
mi.Invoke(this.Page,NULL); //从页的ClientState获取序列化视图状态
System.Reflection.PropertyInfo stateProp = typeof运算(页).GetProperty(ClientState,System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
字符串状态= stateProp.GetValue(this.Page,空)的ToString(); 返回callbackArg +¤¤#+状态;
}无效ICallbackEventHandler.RaiseCallbackEvent(字符串eventArgument)
{
尝试
{
//从客户端加载XML
XmlDocument的DOC =新的XmlDocument();
doc.LoadXml(eventArgument.Replace(与&,&放大器;放大器;));
字符串pagerId =的String.Empty; 如果(doc.DocumentElement.Name ==回调)
{
字符串gridId = doc.DocumentElement [论据] [gridId]的InnerText。 开关(doc.DocumentElement [行动。的InnerText)
{
案排序:
字符串SORTEX pression = doc.DocumentElement [论据] [SORTEX pression]的InnerText。
排序(SORTEX pression.Split('')[0] .Trim(),SORTEX pression.Split('')[1] .Trim()。等于(ASC)?SortDirection.Ascending :SortDirection.Descending);
打破; 案页:
字符串的PageIndex = doc.DocumentElement [论据] [的PageIndex]的InnerText。
this.PageIndex = Convert.ToInt32(PageIndex的);
pagerId = base.BottomPagerRow.Cells [0] .FindControl(PAGER_ID).ClientID;
打破; 案搜索:
打破;
} this.DataBind();
callbackArg =的String.Format({0}¤|¤{1}¤|¤{2},gridId,this.RenderHtml(),pagerId);
} DOC = NULL;
}
赶上(异常前)
{
callbackArg =的String.Format(AJAX_ERROR_FORMAT,ex.Message +\\ n \\ n+ ex.StackTrace);
}
最后
{
如果(callbackArg.Equals(的String.Empty))
{
callbackArg =的String.Format(AJAX_ERROR_FORMAT,Ajax错误发生!);
}
}
}#endregion
这是我..的PagerRows必须设置到正确的部分。
什么工作我得到了这个提示从
<一href=\"http://www.$c$cproject.com/Members/iguigova?msg=3153516\">http://www.$c$cproject.com/Members/iguigova?msg=3153516
(搜索MakeAccessible)
保护覆盖无效在preRender(EventArgs的发送)
{
base.On preRender(E); 如果(Rows.Count大于0)
{
UseAccessibleHeader = TRUE;
HeaderRow.TableSection = TableRowSection.TableHeader;
FooterRow.TableSection = TableRowSection.TableFooter;
} 如果(TopPagerRow!= NULL)
{
TopPagerRow.TableSection = TableRowSection.TableHeader;
}
如果(BottomPagerRow!= NULL)
{
BottomPagerRow.TableSection = TableRowSection.TableFooter;
}
}
I have extended the standard GridView control in ASP.NET. Basically it is just the same, but paging and sorting is done using callbacks.
I have successfully created my own PagerTemplate, but it only works when PagerSettings.Position is set to Top. I want to have the pager at both the top and the bottom.
I get an HttpException saying: The table must contain row sections in order of header, body, then footer.
Anyone know what this could be?
I already tried calling the MakeAccessible() method, but that doesn't help.
Code:
private int _IdColumnIndex = -1;
public override object DataSource
{
get
{
return HttpContext.Current.Session[this.ClientID + "_DataSource"];
}
set
{
if (!value.GetType().Equals(typeof(DataView)))
throw new ArgumentException("Only System.Data.DataView is accepted as a DataSource for DataGridView!");
HttpContext.Current.Session[this.ClientID + "_DataSource"] = value;
}
}
/// <summary>
/// Sets the default settings.
/// </summary>
private void SetDefaultSettings()
{
base.AllowPaging = true;
base.AllowSorting = true;
base.ShowHeader = true;
base.ShowFooter = true;
base.PagerTemplate = new GridPagerTemplate(PAGER_ID, this);
base.PagerSettings.Position = PagerPosition.TopAndBottom;
base.PageSize = 10;
AddSelectionCheckbox();
}
//private void MakeAccessible()
//{
// if (this.Rows.Count > 0)
// {
// //This replaces <td> with <th> and adds the scope attribute
// this.UseAccessibleHeader = true;
// //This will add the <thead> and <tbody> elements
// this.HeaderRow.TableSection = TableRowSection.TableHeader;
// //This adds the <tfoot> element. Remove if you don't have a footer row
// this.FooterRow.TableSection = TableRowSection.TableFooter;
// }
//}
private void AddSelectionCheckbox()
{
TemplateField tf = new TemplateField();
tf.HeaderText = "";
tf.ItemTemplate = new CheckboxTemplate(ROW_CHECKBOX_ID);
base.Columns.Add(tf);
}
protected override void OnInit(EventArgs e)
{
SetDefaultSettings();
base.DataBound += new EventHandler(DataGridView_DataBound);
base.RowDataBound += new GridViewRowEventHandler(DataGridView_RowDataBound);
base.OnInit(e);
}
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
//this.PaintRows();
//this.FormatCells();
// Get JavaScript for this DataGridView, and include it on the page.
string scriptUrl = Page.ClientScript.GetWebResourceUrl(this.GetType(), "Yakinix.UI.Controls.DataGridView.js");
Page.ClientScript.RegisterClientScriptInclude("DataGridView", scriptUrl);
string js = "function DGV_MakeCallback(argument)" +
"{" +
"__theFormPostData = '';" +
"__theFormPostCollection = new Array();" +
"WebForm_InitCallback();" +
GetCallbackEventReference("DGV_Callback") +
";}";
Page.ClientScript.RegisterClientScriptBlock(typeof(DataGridView), typeof(DataGridView).FullName + "DGV_MakeCallback", js, true);
if (this.HeaderRow != null)
this.HeaderRow.TableSection = TableRowSection.TableHeader;
}
private string GetCallbackEventReference(string func)
{
string callbackEventReference = Page.ClientScript.GetCallbackEventReference(this, "argument", func, "'" + ClientID + "'", false);
return callbackEventReference;
}
public override void RenderBeginTag(HtmlTextWriter writer)
{
writer.RenderBeginTag(HtmlTextWriterTag.Div); // <div>
base.RenderBeginTag(writer);
}
public override void RenderEndTag(HtmlTextWriter writer)
{
base.RenderEndTag(writer);
writer.RenderEndTag(); // </div>
}
/// <summary>
/// Renders the gridview control and strips whitespace. It also
/// applies the right formatting.
/// </summary>
public string RenderHtml()
{
using (StringWriter sw = new StringWriter(CultureInfo.InvariantCulture))
{
//this.PaintRows();
//this.FormatCells();
if (this.HeaderRow != null)
this.HeaderRow.TableSection = TableRowSection.TableHeader;
this.UseAccessibleHeader = true;
this.RenderControl(new HtmlTextWriter(sw));
string html = sw.ToString();
return html;
}
}
// TODO: Style all rows for the column matching current SortExpression.
protected void DataGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
//DataGridView gridView = (DataGridView)sender;
//if (gridView.SortExpression.Length > 0)
//{
// int cellIndex = -1;
// // find the column index for the corresponding sort expression
// foreach (DataControlField field in gridView.Columns)
// {
// if (field.SortExpression == gridView.SortExpression)
// {
// cellIndex = gridView.Columns.IndexOf(field);
// break;
// }
// }
// if (cellIndex > -1)
// {
// if (e.Row.RowType == DataControlRowType.Header)
// {
// // this is a header row,
// // set the sort style
// e.Row.Cells[cellIndex].CssClass += (gridView.SortDirection == SortDirection.Ascending ? " sortascheader" : " sortdescheader");
// }
// else if (e.Row.RowType == DataControlRowType.DataRow)
// {
// // this is a data row
// e.Row.Cells[cellIndex].CssClass += (e.Row.RowIndex % 2 == 0 ? " sortaltrow" : "sortrow");
// }
// }
//}
RenderDetailsRow(e);
}
/// <summary>
/// Renders the details row, which is hidden when rendered. Clicking a details link, displays the row and more detailed data is shown, and is editable.
/// </summary>
/// <param name="e">The <see cref="System.Web.UI.WebControls.GridViewRowEventArgs"/> instance containing the event data.</param>
private void RenderDetailsRow(GridViewRowEventArgs e)
{
// Only add a details row to DataRows
if (false && e.Row.RowType == DataControlRowType.DataRow)
{
Table table = e.Row.Parent as Table;
if (table != null)
{
GridViewRow row = new GridViewRow(-1, -1, DataControlRowType.DataRow, DataControlRowState.Normal);
row.Style[HtmlTextWriterStyle.Display] = "none";
TableCell rowCell = new TableCell();
rowCell.ColumnSpan = this.Columns.Count;
rowCell.Height = new Unit(100);
row.Cells.Add(rowCell);
table.Rows.Add(row);
HtmlAnchor htmlAhref = new HtmlAnchor();
htmlAhref.HRef = "javascript:void(0);";
htmlAhref.Attributes.Add("onclick", "ToggleElement('" + row.ClientID + "');");
htmlAhref.InnerText = "Test";
e.Row.Cells[e.Row.Cells.Count - 1].Controls.Add(htmlAhref);
}
}
}
protected void DataGridView_DataBound(object sender, EventArgs e)
{
FillPagerDetails(base.TopPagerRow);
FillPagerDetails(base.BottomPagerRow);
}
private void FillPagerDetails(GridViewRow pagerRow)
{
if (pagerRow != null)
{
// Retrieve the DropDownList and Label controls from the row.
DropDownList pageList = pagerRow.Cells[0].FindControl(PAGER_ID) as DropDownList;
if (pageList != null)
{
pageList.Attributes.Add("onchange", "DataGridViewPage(this.value, '" + ClientID + "');");
// Add the number of pages to the ListBox
for (int i = 0; i < base.PageCount; i++)
{
int pageNumber = i + 1;
// Create a ListItem that represents a page
ListItem item = new ListItem(String.Format("{0}", pageNumber), i.ToString());
// If the page is already selected, make sure the
// ListBox select the selected page
if (i == base.PageIndex)
item.Selected = true;
// Add the ListItem object to the Items collection of the DropDownList.
pageList.Items.Add(item);
}
}
}
}
protected override void InitializeRow(GridViewRow row, DataControlField[] fields)
{
base.InitializeRow(row, fields);
if (row.RowType == DataControlRowType.Header)
{
for (int i = 0; i < row.Cells.Count; i++)
{
row.Cells[i].Controls.Clear();
if (row.Cells[i].Text.Equals("CHKCOL", StringComparison.Ordinal))
{
CheckBox chkSelectAll = new CheckBox();
chkSelectAll.ID = "chkSelectAllRows";
row.Cells[i].Controls.Add(chkSelectAll);
}
else
{
row.Cells[i].Text = String.Format(CultureInfo.InvariantCulture, "<a href=\"javaScript:DataGridViewSort('{0}', '{2}');void(0)\" title=\"{1}\">{1}</a>", fields[i].SortExpression, fields[i].HeaderText, this.ClientID);
}
}
//if (ViewState["SortExpression"] != null)
//{
// int index;
// index = 0;// GetHeaderCellIndex(ViewState["SortExpression"].ToString());
// if (index != -1)
// {
// //Literal literal;
// //if ((SortDirection)ViewState["SortDirection"] == SortDirection.Ascending)
// //{
// // if (string.IsNullOrEmpty(SortAscendingImageUrl))
// // {
// // literal = new Literal();
// // literal.Text = "↑";
// // row.Cells[index].Controls.Add(literal);
// // }
// // else
// // {
// // sortImage.ImageUrl = SortAscendingImageUrl;
// // row.Cells[index].Controls.Add(sortImage);
// // }
// //}
// //else
// //{
// // if (string.IsNullOrEmpty(SortDescendingImageUrl))
// // {
// // literal = new Literal();
// // literal.Text = "↓";
// // row.Cells[index].Controls.Add(literal);
// // }
// // else
// // {
// // sortImage.ImageUrl = SortDescendingImageUrl;
// // row.Cells[index].Controls.Add(sortImage);
// // }
// //}
// }
//}
}
else if (row.RowType == DataControlRowType.DataRow)
{
for (int i = 0; i < row.Cells.Count; i++)
{
if (fields[i].HeaderText.Equals("id", StringComparison.InvariantCultureIgnoreCase))
{
_IdColumnIndex = i;
break;
}
}
}
}
protected override void OnRowCreated(GridViewRowEventArgs e)
{
base.OnRowCreated(e);
if (e.Row.RowType == DataControlRowType.Header)
{
//HtmlImage img = new HtmlImage();
//img.ID = "lbCheckAll";
//img.Src = "/img/btn_slct_all.gif";
//img.Alt = "Select all";
//img.Attributes.Add("onclick", "SelectAllRows('" + this.ClientID + "',true);return false;");
//e.Row.Cells[0].Controls.Add(img);
}
else if (e.Row.RowType == DataControlRowType.DataRow)
{
//AddCheckbox(e);
}
else if (e.Row.RowType == DataControlRowType.Footer)
{
//e.Row.Cells[0].Text = "sdsds";
}
}
protected override void OnRowDataBound(GridViewRowEventArgs e)
{
base.OnRowDataBound(e);
if (e.Row.RowType == DataControlRowType.DataRow)
{
//AddCheckbox(e);
if (_IdColumnIndex != -1)
e.Row.Cells[_IdColumnIndex].Text = "<a href=\"Details.aspx?id=" + e.Row.Cells[_IdColumnIndex].Text + "\">Edit</a>";
}
}
public override void Sort(string sortExpression, SortDirection sortDirection)
{
DataView dv = this.DataSource as DataView;
if (dv != null)
{
dv.Sort = sortExpression + " " + (sortDirection == SortDirection.Ascending ? "ASC" : "DESC");
}
}
#region ICallbackEventHandler Members
private string callbackArg = String.Empty;
string ICallbackEventHandler.GetCallbackResult()
{
// Save state with PageStatePersister and place it to Page.ClientState
System.Reflection.MethodInfo mi = typeof(Page).GetMethod("SaveAllState", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
mi.Invoke(this.Page, null);
// Get serialized viewstate from Page's ClientState
System.Reflection.PropertyInfo stateProp = typeof(Page).GetProperty("ClientState", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
string state = stateProp.GetValue(this.Page, null).ToString();
return callbackArg + "¤#¤" + state;
}
void ICallbackEventHandler.RaiseCallbackEvent(string eventArgument)
{
try
{
// Load XML from client
XmlDocument doc = new XmlDocument();
doc.LoadXml(eventArgument.Replace("&", "&"));
string pagerId = String.Empty;
if (doc.DocumentElement.Name == "callback")
{
string gridId = doc.DocumentElement["arguments"]["gridId"].InnerText;
switch (doc.DocumentElement["action"].InnerText)
{
case "sort":
string sortExpression = doc.DocumentElement["arguments"]["sortExpression"].InnerText;
Sort(sortExpression.Split(' ')[0].Trim(), sortExpression.Split(' ')[1].Trim().Equals("ASC") ? SortDirection.Ascending : SortDirection.Descending);
break;
case "page":
string pageIndex = doc.DocumentElement["arguments"]["pageIndex"].InnerText;
this.PageIndex = Convert.ToInt32(pageIndex);
pagerId = base.BottomPagerRow.Cells[0].FindControl(PAGER_ID).ClientID;
break;
case "search":
break;
}
this.DataBind();
callbackArg = String.Format("{0}¤|¤{1}¤|¤{2}", gridId, this.RenderHtml(), pagerId);
}
doc = null;
}
catch (Exception ex)
{
callbackArg = String.Format(AJAX_ERROR_FORMAT, ex.Message + "\n\n" + ex.StackTrace);
}
finally
{
if (callbackArg.Equals(string.Empty))
{
callbackArg = String.Format(AJAX_ERROR_FORMAT, "An AJAX Error occurred!");
}
}
}
#endregion
This is what works for me.. the PagerRows must be set to their proper sections.
I got this tip from http://www.codeproject.com/Members/iguigova?msg=3153516 (search for MakeAccessible)
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
if (Rows.Count > 0)
{
UseAccessibleHeader = true;
HeaderRow.TableSection = TableRowSection.TableHeader;
FooterRow.TableSection = TableRowSection.TableFooter;
}
if (TopPagerRow != null)
{
TopPagerRow.TableSection = TableRowSection.TableHeader;
}
if (BottomPagerRow != null)
{
BottomPagerRow.TableSection = TableRowSection.TableFooter;
}
}
这篇关于GridView控件与寻呼机TopAndBottom的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!