我有一个网格视图,如下所示
<asp:GridView ID="grid_flats_allflatslist" OnRowDeleting="grid_flats_allflatslist_RowDeleting" runat="server" Width="95%" CssClass="gridview" ShowFooter="true" AllowPaging="true" PageSize="8" BackColor="Black" BorderColor="#E7E7FF" BorderStyle="None" BorderWidth="1px" CellPadding="1" CellSpacing="1" frame="below" DataKeyNames="BlockID" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="BlockID" HeaderText="Block ID" Visible="false" />
<asp:BoundField DataField="BlockName" HeaderText="Block Name" />
<asp:TemplateField HeaderText="Flat Number">
<ItemTemplate>
<asp:TextBox ID="text_flats_listflatnumber" CssClass="textbox" onkeypress="return numeric(this);" MaxLength="5" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Flat Number">
<ItemTemplate>
<asp:DropDownList ID="list_flats_listflattype" CssClass="droplist" runat="server" AutoPostBack="true" OnSelectedIndexChanged="list_flats_listflattype_SelectedIndexChanged">
<asp:ListItem Text="Bachelor" Value="Bachelor"></asp:ListItem>
<asp:ListItem Text="Family" Value="Family"></asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Max Vacancy">
<ItemTemplate>
<asp:TextBox ID="text_flats_listmaxvacancy" onkeypress="return numeric(this);" MaxLength="2" CssClass="textbox" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowDeleteButton="true" DeleteText="Delete" />
</Columns>
<FooterStyle BackColor="#9e4900" ForeColor="#fff1e5" Font-Bold="false" Font-Underline="false" HorizontalAlign="Center" />
<HeaderStyle BackColor="#9e4900" ForeColor="#fff1e5" HorizontalAlign="Center" />
<PagerStyle BackColor="#ff8080" ForeColor="#660000" HorizontalAlign="Right" />
<RowStyle BackColor="#ffe7d6" ForeColor="#660000" HorizontalAlign="Center" />
<AlternatingRowStyle BackColor="#ffd6ba" ForeColor="#660000" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#fff9f4" HorizontalAlign="Center" ForeColor="Black" />
</asp:GridView>
<asp:Button ID="button_flats_flatplus" CssClass="button" Height="30px" Width="25%" runat="server" Text="Add Flat" OnClick="button_flats_flatplus_Click" />
最初,这是空的,当我点击button_flats_flatsplus
按钮时,一行将被添加到网格视图中,字段如上所示。它还有2个文本框和一个下拉列表。按钮点击事件如下所示。
protected void button_flats_flatplus_Click(object sender, EventArgs e)
{
DataTable dt;
DataRow dr = null;
if (ViewState["CurrentTable"] == null)
{
dt = new DataTable();
dt.Columns.Add(new DataColumn("BlockID", typeof(string)));
dt.Columns.Add(new DataColumn("BlockName", typeof(string)));
dt.Columns.Add(new DataColumn("Column1", typeof(string)));
dt.Columns.Add(new DataColumn("Column2", typeof(string)));
dt.Columns.Add(new DataColumn("Column3", typeof(string)));
dr = dt.NewRow();
dr["BlockID"] = list_flats_blocklist.SelectedValue; // I get this value from a different list
dr["BlockName"] = list_flats_blocklist.SelectedItem.Text; // I get this value from a different list
dr["Column1"] = string.Empty;
dr["Column2"] = string.Empty;
dr["Column3"] = string.Empty;
dt.Rows.Add(dr);
ViewState["CurrentTable"] = dt;
grid_flats_allflatslist.DataSource = dt;
grid_flats_allflatslist.DataBind();
}
else
{
dt = (DataTable) ViewState["CurrentTable"];
dr = dt.NewRow();
dr["BlockID"] = list_flats_blocklist.SelectedValue; // I get this value from a different list
dr["BlockName"] = list_flats_blocklist.SelectedItem.Text; // I get this value from a different list
dr["Column1"] = string.Empty;
dr["Column2"] = string.Empty;
dr["Column3"] = string.Empty;
dt.Rows.Add(dr);
ViewState["CurrentTable"] = dt;
grid_flats_allflatslist.DataSource = dt;
grid_flats_allflatslist.DataBind();
}
}
添加多行后,网格视图将如下所示
如果我在此处按删除,则表示已成功删除。现在我将在文本框中输入值。但是,当我从第1行选择Family
时,应禁用第1行的Max Vacancy
文本框,并将文本内容设为--
。如果我从第1行中选择Bachelor
,则应启用第1行中的Max Vacancy
文本框,并清除文本以输入值。对于我工作的任何行,都应该这样做。但我不知道如何做到这一点,因为我在网格视图中只有一个文本框ID,我不知道如何分别访问每个行元素。
输入所有值后,我将点击一个保存按钮,并且应该在网格视图中逐行插入输入到数据库中的所有值。这也是我不知道该怎么办,因为我无法单独访问每一行文本框。我有什么方法可以做到这一点吗?
我的行删除代码如下,
protected void grid_flats_allflatslist_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int index = Convert.ToInt32(e.RowIndex);
DataTable dt = ViewState["CurrentTable"] as DataTable;
dt.Rows[index].Delete();
ViewState["CurrentTable"] = dt;
grid_flats_allflatslist.DataSource = dt;
grid_flats_allflatslist.DataBind();
}
将值插入数据库时,网格视图BlockID
的第一个绑定字段应该是主键。为了获得良好的可见度,我已将其隐藏起来。
答案 0 :(得分:1)
尝试此操作为平面编号和最大空缺添加验证
$(document).on('change', '.droplist', function(){
var parentRow=$(this).parents("tr:eq(0)");
var text_flats_listmaxvacancy=$(parentRow).find('[id*="text_flats_listmaxvacancy"]');
var _value=$(this).val();
if(_value=="Family"){
$(text_flats_listmaxvacancy).val("--");
$(text_flats_listmaxvacancy).attr("readonly",true);
}
else if(_value=="Bachelor"){
$(text_flats_listmaxvacancy).val("");
$(text_flats_listmaxvacancy).attr("readonly",false);
}
});
//Code for save button to find each row and controls
foreach(GridViewRow row in grid_flats_allflatslist.Rows)
{
TextBox text_flats_listflatnumber=(TextBox)row.FindControl("text_flats_listflatnumber");
DropDownList list_flats_listflattype=(DropDownList)row.FindControl("list_flats_listflattype");
TextBox text_flats_listmaxvacancy=(TextBox)row.FindControl("text_flats_listmaxvacancy");
}
从下拉列表中移除AutoPostBack
和OnSelectedIndexChanged
,并按照以下方式进行操作,
<asp:DropDownList ID="list_flats_listflattype" CssClass="droplist" runat="server">
<asp:ListItem Text="Bachelor" Value="Bachelor"></asp:ListItem
<asp:ListItem Text="Family" Value="Family"></asp:ListItem>
</asp:DropDownList>