[英]Gridview with dynamic template in custom control not firing event
Please help me, I need a click on the button fire the b_click procedure and it's not working. 请帮助我,我需要在b_click程序上单击按钮,但它不起作用。 Here is my custom control with a gridview and a column added dynamically using a ITemplate class.
这是我的自定义控件,带有gridview和使用ITemplate类动态添加的列。
namespace NamespaceServerControlSearch
{
[ToolboxData("<{0}:ServerControlSearch runat=server></{0}:ServerControlSearch>")]
public class ServerControlSearch : CompositeControl
{
private global::System.Web.UI.WebControls.GridView grid;
protected override void CreateChildControls()
{
Controls.Clear();
grid = new GridView();
grid.AutoGenerateColumns = true;
grid.ID = "grid";
grid.Width = Unit.Pixel(400);
grid.Height = Unit.Pixel(100);
grid.BorderStyle = BorderStyle.Solid;
DataColumn col = new DataColumn("xxx");
TemplateField bfield = new TemplateField();
bfield.HeaderTemplate = new GridViewTemplateSelect(ListItemType.Header, col.ColumnName);
bfield.ItemTemplate = new GridViewTemplateSelect(ListItemType.Item, col.ColumnName);
grid.Columns.Add(bfield);
DataSet ds = new DataSet();
using (SqlConnection conn = new SqlConnection("Data Source=(local); Initial Catalog=casproduccion; USER=sa; PASSWORD=Jotsa123"))
{
SqlDataAdapter da = new SqlDataAdapter("select codigo, nombre from CAS_USERS cu where codigo like 'F37008%'", conn);
da.Fill(ds);
}
grid.DataSource = ds.Tables[0];
grid.DataBind();
}
protected override void Render(HtmlTextWriter o)
{
o.Write("<div style=\"width: 420px; height: 100px; overflow: scroll; border: 1px solid black;\">");
grid.RenderControl(o);
o.Write("</div>");
}
protected override void RecreateChildControls()
{
EnsureChildControls();
}
}
public class GridViewTemplateSelect : Control, ITemplate
{
private ListItemType _templateType;
private string _columnName;
public GridViewTemplateSelect(ListItemType type, string colname)
{
_templateType = type;
_columnName = colname;
}
void ITemplate.InstantiateIn(System.Web.UI.Control container)
{
switch (_templateType)
{
case ListItemType.Header:
Label lbl = new Label();
lbl.Text = _columnName;
container.Controls.Add(lbl);
break;
case ListItemType.Item:
Button b = new Button();
b.Text = "test";
//b.DataBinding += new EventHandler(b_click);
b.Click += new EventHandler(b_click);
container.Controls.Add(b);
break;
}
}
public void b_click(object sender, EventArgs e)
{
Button bb = (Button)sender;
bb.Text = bb.Text + "A"; //change name to test if it's receiving event
GridViewRow container = (GridViewRow)bb.NamingContainer;
string cid = container.Cells[1].Text;
}
}
} }
Just a simple idea but please replace the Line: 只是一个简单的想法,但请替换Line:
b.Click += new EventHandler(b_click);
by: 通过:
b.Click += b_click;
add then add Breakdown on the b_click function to be sure that the Event was fired. 添加,然后在b_click函数上添加Breakdown,以确保触发了该事件。 please let me know if it worked for you.
请让我知道它是否对您有用。
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