我想通过点击ImageButton从Gridview中删除记录。请参阅 GridView 代码供您参考： -
<asp:GridView ID="grdCSRPageData" runat="server" Width="100%" border="1" Style="border: 1px solid #E5E5E5;" CellPadding="3" AutoGenerateColumns="false" OnDataBound="grdCSRPageData_DataBound" PageSize="5" AllowPaging="true" OnPageIndexChanging="grdCSRPageData_PageIndexChanging" OnRowCommand="grdCSRPageData_RowCommand">
<AlternatingRowStyle BackColor="#CCCCCC" />
<Columns>
<asp:TemplateField ItemStyle-Width="30">
<ItemTemplate>
<asp:CheckBox ID="chkSelect" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="page_title" HeaderText="Page Title" ItemStyle-Width="30" />
<asp:BoundField DataField="page_description" HeaderText="Page Description" ItemStyle-Width="30" />
<asp:BoundField DataField="meta_title" HeaderText="Meta Title" ItemStyle-Width="30" />
<asp:BoundField DataField="meta_keywords" HeaderText="Meta Keywords" ItemStyle-Width="30" />
<asp:BoundField DataField="meta_description" HeaderText="Meta Description" ItemStyle-Width="30" />
<asp:BoundField DataField="Active" HeaderText="Active" ItemStyle-Width="30" />
<asp:TemplateField HeaderText="Action" HeaderStyle-Width="15%">
<ItemTemplate>
<asp:ImageButton ID="btnEdit" runat="server" ImageUrl="~/images/edit.png" Width="15" Height="15" />
<span onclick="return confirm('Are you sure want to delete?')">
<asp:ImageButton ID="btnDelete" AlternateText="Delete" ImageUrl="~/images/delete.png" runat="server" Width="15" Height="15" CommandName="DeleteRow" />
</span>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="btnUpdate" Text="Update" runat="server" CommandName="Update" />
<asp:LinkButton ID="btnCancel" Text="Cancel" runat="server" CommandName="Cancel" />
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
尝试使用GridView的'RowCommand'属性，并坚持如何删除Row 见代码： -
protected void grdCSRPageData_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "DeleteRow")
{
//incase you need the row index
int rowIndex = ((GridViewRow)((ImageButton)e.CommandSource).NamingContainer).RowIndex;
int Id = Convert.ToInt32(e.CommandArgument);
//followed by your code
}
}
答案 0 :(得分：0)
试试这个
protected void grdCSRPageData_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "DeleteRow")
{
int rowIndex = ((GridViewRow)((ImageButton)e.CommandSource).NamingContainer).RowIndex;
grdCSRPageData.Rows.RemoveAt(rowIndex);
//delete from database
using (SqlConnection connection = new SqlConnection(connectionString))
{
int Id = Convert.ToInt32(e.CommandArgument);
string sql = "DELETE FROM YourTable WHERE ID = @ID";
SqlCommand cmd = new SqlCommand(sql,connection);
cmd.Parameters.AddWithValue("@ID",Id);
cmd.ExecuteNonQuery();
}
}
}
请参阅here以获取有关GridView删除的文档。
<强>更新
要从其行中获取gridView，您可以调用此函数
public static GridView GetParentGridView(GridViewRow row)
{
GridView gridView = (GridView)row.NamingContainer;
return gridView;
}
用它来获取我的代码中的gridview
替换
grdCSRPageData.Rows.RemoveAt(rowIndex)
与
GetParentGridView((GridViewRow)((ImageButton)e.CommandSource).NamingContainer).Rows.RemoveAt(rowIndex)
请确保仅在页面加载时没有回发时绑定网格
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//bind the gridView
}
}
答案 1 :(得分：-1)
尝试过像这样的东西并且有效。： -
<asp:GridView ID="grdCSRPageData" runat="server" Width="100%" border="1" Style="border: 1px solid #E5E5E5;" CellPadding="3" AutoGenerateColumns="False" OnDataBound="grdCSRPageData_DataBound" AllowPaging="True" OnPageIndexChanging="grdCSRPageData_PageIndexChanging" DataKeyNames="Id" OnRowDeleting="grdCSRPageData_RowDeleting" OnClientClick="return confirm('Are you sure you want to delete this record?')">
<AlternatingRowStyle BackColor="#CCCCCC" />
<Columns>
<%-- <asp:TemplateField ItemStyle-Width="30">
<ItemTemplate>
<asp:CheckBox ID="chkSelect" runat="server" />
</ItemTemplate>
</asp:TemplateField>--%>
<asp:BoundField DataField="page_title" HeaderText="Page Title" ItemStyle-Width="30" />
<asp:BoundField DataField="page_description" HeaderText="Page Description" ItemStyle-Width="30" />
<asp:BoundField DataField="meta_title" HeaderText="Meta Title" ItemStyle-Width="30" />
<asp:BoundField DataField="meta_keywords" HeaderText="Meta Keywords" ItemStyle-Width="30" />
<asp:BoundField DataField="meta_description" HeaderText="Meta Description" ItemStyle-Width="30" />
<asp:BoundField DataField="Active" HeaderText="Active" ItemStyle-Width="30" />
<asp:TemplateField HeaderText="Action" HeaderStyle-Width="15%">
<ItemTemplate>
<%-- <asp:LinkButton ID="lbtnEdit" runat="server" CommandName="Edit" Text="Edit" />--%>
<asp:ImageButton ID="btnEdit" runat="server" ImageUrl="~/images/edit.png" Width="15" Height="15" />
<%-- <span onclick="return confirm('Are you sure want to delete?')"> -- %>
<%--<asp:LinkButton ID="btnDelete" Text="Delete" runat="server" CommandName="Delete" ></asp:LinkButton>--%>
<asp:ImageButton ID="btnDelete" AlternateText="Delete" ImageUrl="~/images/delete.png" runat="server" Width="15" Height="15" CommandName="Delete" CommandArgument='<%# Eval("Id") %>' CausesValidation="false" OnClientClick="return confirm('Are you sure you want to delete this record?')" />
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="btnUpdate" Text="Update" runat="server" CommandName="Update" />
<asp:LinkButton ID="btnCancel" Text="Cancel" runat="server" CommandName="Cancel" />
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
另见背后的代码： -
protected void grdCSRPageData_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
bool IsDeleted = false;
//getting key value, row id
int Id = Convert.ToInt32(grdCSRPageData.DataKeys[e.RowIndex].Value.ToString());
using (SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["DefaultCSRConnection"].ConnectionString))
{
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "DELETE FROM tbl_Pages WHERE Id=@ID";
cmd.Parameters.AddWithValue("@ID", Id);
cmd.Connection = conn;
conn.Open();
IsDeleted = cmd.ExecuteNonQuery() > 0;
conn.Close();
}
}
if (IsDeleted)
{
//record has been deleted successfully!
//call here gridview bind method and replace it..
ScriptManager.RegisterStartupScript(this, this.GetType(), "alert", "alert('Page Succesfully deleted');window.location ='csrpage.aspx';", true); ;
grdCSRPageData.DataBind();
}
else
{
//Error while deleting record
Response.Write("Some error");
}
}
数据的绑定也应该在'（！IsPostBack）'方法中