我有员工姓名,Emp Code,Designation的gridview。我正在使用rowdatabound事件中的值填充Employee Names下拉列表。在编辑模式中,在选择“员工姓名”下拉列表中的值时,EmpCode和Designation应相应更改。 empCode和Designation标签控件位于templatefield中。我为Employee Names drodownlist提供了writtern selectionchanged事件,
ddlEmp.SelectedIndexChanged += new EventHandler(grd_ddlEmp_SelectedIndexChanged);
但我不知道如何更改gridview中特定行内的Emp Code和Designation值。
答案 0 :(得分:1)
您需要将gridview放在 UpdatePanel 中并在 SelectedIndexChanged 事件的代码后面执行,就像我在下面的datalist中所做的那样:
<asp:DataList ID="dlstPassengers" runat="server" OnItemDataBound="dlstPassengers_ItemDataBound"
RepeatDirection="Horizontal" RepeatColumns="2" Width="100%">
<ItemTemplate>
<div class="form-linebg" style="line-height: 32px;">
<asp:DropDownList ID="ddlCountry" AutoPostBack="true" OnSelectedIndexChanged="ddlCountry_SelectedIndexChanged"
CssClass="select-3" Style="width: 145px; margin-bottom: 9px;" runat="server">
</asp:DropDownList>
<br />
<asp:DropDownList ID="ddlCity" CssClass="select-3" Style="width: 145px; margin-bottom: 10px;"
runat="server">
</asp:DropDownList>
</div>
</ItemTemplate>
</asp:DataList>
在代码背后:
protected void ddlCountry_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddlCountry = (DropDownList)sender;
DropDownList ddlCity = (DropDownList)((DropDownList)sender).Parent.FindControl("ddlCity");
BindCity(ddlCity, ddlCountry.SelectedValue);
}
private void BindCity(DropDownList ddlCity, string countryCode)
{
// Binding code of city based selected country
}
您需要通过在后面的代码中查找控件,在下拉列表的SelectedIndexChanged事件上设置EmpCode和Designation列。
答案 1 :(得分:1)
在SelectedIndexChanged函数中,找到下拉框的选定值
DropDownList ddl = (GridView1.Rows[GridView1.SelectedIndex].FindControl("DropDownList1") AS DropDownList);
var selectedVal = ddl.SelectedValue;
执行一些代码以确定Emp Code和Desgination,然后填充相关标签(或其他控件):
Label lbl = GridView1.Rows[GridView1.SelectedIndex].FindControl("Label1") as Label;
为标签指定值。
答案 2 :(得分:1)
SelectedIndexChanged
DropDownList
事件中是否包含这些内容
伪代码
protected void grd_ddlEmp_SelectedIndexChanged(object sender, EventArgs e)
{
GridView row = ((DropDownList)sender).NamingContainer as GridViewRow;
Label Designation = row.FindControl("id of the designation label") as Label;
Designation.Text = "new Designation Name";
}
答案 3 :(得分:0)
在您的下拉列表中使用 AutoPostBack =“true”