查找控制网格行内 [英] Find Control inside Grid Row
问题描述
I M使用父子电网和电网儿童I M做显示/隐藏扔Java脚本。和儿童电网结合我运行时间Templatecolumns像
i m using parent child grid and on child grid i m doing Show / hide threw java script. and child grid i bind run time with Templatecolumns like
GridView NewDg = new GridView();
NewDg.ID = "dgdStoreWiseMenuStock";
TemplateField TOTAL = new TemplateField();
TOTAL.HeaderTemplate = new BusinessLogic.GridViewTemplateTextBox(ListItemType.Header, "TOTAL",e.Row.RowIndex );
TOTAL.HeaderStyle.Width = Unit.Percentage(5.00);
TOTAL.ItemTemplate = new BusinessLogic.GridViewTemplateTextBox(ListItemType.Item, "TOTAL", e.Row.RowIndex);
NewDg.Columns.Add(TOTAL);
NewDg.DataSource = ds;
NewDg.DataBind();
NewDg.Columns[1].Visible = false;
NewDg.Columns[2].Visible = false;
System.IO.StringWriter sw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htw = new System.Web.UI.HtmlTextWriter(sw);
NewDg.RenderControl(htw);
现在我已经内部电网一个TextBox命名为TOTAL我想找到这个文本框和想要得到它的价值。
Now I have one TextBox inside Grid named "TOTAL" I want to Find This TextBox and wanna get its value.
怎样才能得到它?
推荐答案
您可以得到的GridView的相应小区内的TextBox控件,使用控件
属性或的FindControl(字符串ID)
方法:
You could get the TextBox control inside the corresponding cell of the GridView, using the Controls
property or the FindControl(string id)
method:
TextBox txtTotal = gv.Rows[index].cells[0].Controls[0] as TextBox;
或
TextBox txtTotal = gv.Rows[index].cells[0].Controls[0].FindControl("TOTAL") as TextBox;
,其中索引可以为第一行,或者一个迭代内部的for循环是0
where index could be 0 for the first row, or an iterator inside a for loop.
另外,你可以使用foreach循环在GridView的行:
Alternatively, you can use a foreach loop over the GridView's rows:
foreach(GridViewRow row in gv.Rows)
{
TextBox txtTotal = row.cells[0].Controls[0].FindControl("TOTAL") as TextBox;
string value = txtTotal.Text;
// Do something with the textBox's value
}
另外,你要记住,如果你(在Web表单,而不是声明)动态创建GridView的,你将无法得到一个页面回发后此控件。
Besides, you have to keep in mind that, if you're creating the GridView dynamically (and not declaratively in the web form), you won't be able to get this control after a page postback.
有一个伟大的 4家伙从罗拉的文章的主题:动态Web控件,回发和视图状态
There is a great 4 Guys from Rolla article on the subject: Dynamic Web Controls, Postbacks, and View State
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