Gridview正在排序，但无法使用递增的下降箭头添加gridview ..要添加的方式？ [英] Gridview is sorting but unable to add gridview with ascending descending arrows..how to add?
问题描述
Dono我错了，我已经采取了一个事件进行排序，这是我的排序gridview的代码它工作正常，但我无法添加箭头到girdview，上面我已经尝试过但它没有添加我的箭头，我如何添加箭头？
i已尝试过一些文章，但我无法添加上升和下降的箭头，gridview在点击标题行时排序，但需要显示给用户他可以根据上升箭头和下降箭头进行排序......
protected void grdInformation_Sorting（object sender，GridViewSortEventArgs e）
{
if（CurrentSortExpression == e.SortExpression.ToString（））
{
if（CurrentSortDirection ==asc）
CurrentSortDirection =desc;
else
CurrentSortDirection =asc;
}
其他
{
CurrentSortExpression = e.SortExpression.ToString（）;
CurrentSortDirection =asc;
}
if（e.SortExpression.Trim（）== this.SortField）
{
这个。 sortDirection =（this.sortDirection ==DESC？ ASC：DESC）;
}
else
{
this.sortDirection =ASC ;
}
ViewState [SortDirection] = this.sortDirection;
this.SortField = e.SortExpression;
Bindinfo（GetInformation（ddlStatus.SelectedValue，ddlGroups.SelectedValue））;
}
请帮忙??
我尝试了什么：
这是我用箭头添加gridview的代码..
Gridview按升序和降序排序，但我无法添加箭头。
protected void grdInformation_RowCreated（object sender，GridViewRowEventArgs e）
{
if（e.Row！= null&& e.Row.RowType == DataControlRowType.Header）
{
foreach（e.Row中的TableCell单元格）。细胞）
{
if（cell.HasControls（））
{
LinkButton button = cell.Controls [0] as LinkButton;
HtmlGenericControl gv = new HtmlGenericControl（div）;
标签lnkName = new Label（）;
lnkName.Text = button.Text;
if（button！= null）
{
Image imageSort = new Image（）;
imageSort.ImageUrl =〜/ images / asc.png;
if（grdInformation.SortExpression == button.CommandArgument）
{
if（grdInformation.SortDirection == SortDirection.Ascending ）
{
imageSort.ImageUrl =〜/ images / desc.png;
}
else
{
imageSort.ImageUrl =〜/ images / asc.png;
}
} < br $>
gv.Controls.Add（lnkName）;
gv.Controls.Add（imageSort）;
button.Controls.Add（gv）;
}
}
}
}
}
}
}
Dono where i am going wrong , I have took an event for sorting , this is my code for sorting gridview it is working finee, but i am unable to add arrows to the girdview , the above i have tried but its not adding me arrows, how do i add arrows ??
i have tried some articles but i am unable to add arrows with ascending and descending , gridview is sorting when clicking on header rows , but need to display to the user that he can sort based on ascending arrows and descending arrows ...
protected void grdInformation_Sorting(object sender, GridViewSortEventArgs e)
{
if (CurrentSortExpression == e.SortExpression.ToString())
{
if (CurrentSortDirection == "asc")
CurrentSortDirection = "desc";
else
CurrentSortDirection = "asc";
}
else
{
CurrentSortExpression = e.SortExpression.ToString();
CurrentSortDirection = "asc";
}
if (e.SortExpression.Trim() == this.SortField)
{
this.sortDirection = (this.sortDirection == "DESC" ? "ASC" : "DESC");
}
else
{
this.sortDirection = "ASC";
}
ViewState["SortDirection"] = this.sortDirection;
this.SortField = e.SortExpression;
Bindinfo(GetInformation(ddlStatus.SelectedValue, ddlGroups.SelectedValue));
}
Please help ??
What I have tried:
This is my code for adding gridview with arrows..
Gridview is sorting by ascending and descending but i am unable to add arrows.
protected void grdInformation_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row != null && e.Row.RowType == DataControlRowType.Header)
{
foreach (TableCell cell in e.Row.Cells)
{
if (cell.HasControls())
{
LinkButton button = cell.Controls[0] as LinkButton;
HtmlGenericControl gv = new HtmlGenericControl("div");
Label lnkName = new Label();
lnkName.Text = button.Text;
if (button != null)
{
Image imageSort = new Image();
imageSort.ImageUrl = "~/images/asc.png";
if (grdInformation.SortExpression == button.CommandArgument)
{
if (grdInformation.SortDirection == SortDirection.Ascending)
{
imageSort.ImageUrl = "~/images/desc.png";
}
else
{
imageSort.ImageUrl = "~/images/asc.png";
}
}
gv.Controls.Add(lnkName);
gv.Controls.Add(imageSort);
button.Controls.Add(gv);
}
}
}
}
}
}
}
推荐答案
试试这个
ASP.NET GridView按图像排序 [ ^ ]
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