Сетка ASP.NET в 2.0, имеющая проблемы с подкачкой для сохранения значения флажка при нажатии кнопки сохранения
это мой код нажатия кнопки, который заполняет вид сетки
protected void Btnok_Click(object sender, EventArgs e)
{
try
{
if (Page.IsValid)
{
int passoutYear = Convert.ToInt32(passout.SelectedValue);
int courseList = Convert.ToInt32(course.SelectedValue);
StringBuilder sb = new StringBuilder();
string sep = "";
foreach (ListItem li in Branch.Items)
{
if (li.Selected)
{
sb.Append(sep + li.Value);
sep = ",";
}
}
DataTable dt = placedStudentManager.GetPlacedStudentList(sb, passoutYear, courseList);
if (dt != null && dt.Rows.Count != 0)
{
GridView1.DataSource = dt;
GridView1.DataBind();
GridView1.Visible = true;
Btnsave.Visible = true;
ViewState["dt"] = dt;
}
else
{
noRecordExistOnOkButton.Text = "No Record Exist To Be Inserted For Recruited Students";
Btnsave.Visible = false;
GridView1.Visible = false;
}
}
}
catch (Exception ex)
{
COMMON.logger.Error("Error On Button Btnok_Click:CompanySelected.aspx.cs ", ex);
}
}
это мое сохранение кнопки, которое сохраняет проверил флажок gridRow в базе данных
protected void Btnsave_Click(object sender, EventArgs e)
{
try
{
if (Page.IsValid)
{
int passoutYear = Convert.ToInt32(passout.SelectedValue);
int companyId = Convert.ToInt32(company.SelectedValue);
int courseId = Convert.ToInt32(course.SelectedValue);
string package = txtpackage.Text.Trim();
string venu = txtvenue.Text.Trim();
DateTimeFormatInfo dateInfo = new DateTimeFormatInfo();
dateInfo.ShortDatePattern = "dd/MM/yyyy";
DateTime date = Convert.ToDateTime(vistDate.Text.Trim(), dateInfo);
DataTable gridviewTbl = new DataTable();
DataColumn dc1 = new DataColumn("company_id");
DataColumn dc2 = new DataColumn("course_id");
DataColumn dc3 = new DataColumn("branch_id");
DataColumn dc4 = new DataColumn("student_enrollment");
DataColumn dc5 = new DataColumn("company_visit_date");
DataColumn dc6 = new DataColumn("venu");
DataColumn dc7 = new DataColumn("package");
DataColumn dc8 = new DataColumn("passout_year");
gridviewTbl.Columns.Add(dc1);
gridviewTbl.Columns.Add(dc2);
gridviewTbl.Columns.Add(dc3);
gridviewTbl.Columns.Add(dc4);
gridviewTbl.Columns.Add(dc5);
gridviewTbl.Columns.Add(dc6);
gridviewTbl.Columns.Add(dc7);
gridviewTbl.Columns.Add(dc8);
if (GridView1 != null && GridView1.Rows.Count != 0)
{
int rowCount = GridView1.Rows.Count;
int i = 0;
foreach (GridViewRow row in GridView1.Rows)
{
CheckBox cb = (CheckBox)row.FindControl("Chek");
if (cb != null && cb.Checked)
{
string enrollmetNo = GridView1.Rows[i].Cells[1].Text.ToString();
int branchId = Convert.ToInt32(GridView1.DataKeys[0].Value);
gridviewTbl.Rows.Add(companyId, courseId, branchId, enrollmetNo, date, venu, package, passoutYear);
}
i++;
}
if (gridviewTbl.Rows.Count != 0)
{
Boolean b = placedStudentManager.SaveSelectdStudent(gridviewTbl);
gridNotExist.Text = "Records Successfully inserted";
}
else
{
gridNotExist.Text = "Please check the record to be inserted";
Btnsave.Visible = true;
GridView1.Visible = true;
}
}
else
{
gridNotExist.Text = "Please Select The Recruited Student, so click the ok button first ";
}
}
else
{
GridView1.Visible = true;
Btnsave.Visible = true;
}
}
catch (Exception ex)
{
COMMON.logger.Error("Error On Button Btnsave_Click:CompanySelected.aspx.cs ", ex);
}
}
, теперь я делаю пейджинг, используя следующий код
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
GridView1.DataSource = (DataTable)ViewState["dt"];
GridView1.DataBind();
GridView1.Visible = true;
Btnsave.Visible = true;
// StringBuilder str=(StringBuilder)ViewState["chk"];
//foreach (GridViewRow row in GridView1.Rows)
//{
//}
}
, следующим является представление сетки
<%@ Page Language="C#" MasterPageFile="~/Master Pages/AdminMaster.master" AutoEventWireup="true"
CodeFile="CompanySelected.aspx.cs" Inherits="Admin_CompanySelected" Trace="false" Title="Untitled Page" EnableEventValidation="false" %>
<asp:Content ID="Content1" ContentPlaceHolderID="cph1" runat="Server">
<script language="javascript" type="text/javascript">
function BranchCheckBoxCheck(source, args)
{
var chkBoxListId=document.getElementById ('<%=Branch.ClientID%>');
var chkList=chkBoxListId.getElementsByTagName("input");
for(var i=0;i<chkList.length;i++)
{
if(chkList[i].checked)
{
args.IsValid = true;
return;
}
}
args.IsValid = false;
}
</script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="cphMain" runat="Server">
<div border="1">
<table id="TABLE1" onclick="return TABLE1_onclick()" align="center">
<tr>
<td style="height: 24px">
Passout Year*</td>
<td style="height: 24px">
<asp:DropDownList ID="passout" runat="server">
</asp:DropDownList>
<asp:CustomValidator ID="validateYearForSaveButton" runat="server" ControlToValidate="passout"
ErrorMessage="insert passout year" OnServerValidate="validateYearForSaveButton_ServerValidate"
ValidationGroup="save"></asp:CustomValidator></td>
<td style="height: 24px">
<asp:CustomValidator ID="passoutYearRequire" runat="server" ErrorMessage="Passout Year is Compulsory" ControlToValidate="passout" ValidationGroup="verify" OnServerValidate="passoutYearRequire_ServerValidate">
</asp:CustomValidator>
</td>
<td style="width: 101px; height: 24px;">
</td>
<td style="width: 126px; height: 24px">
</td>
<td style="height: 24px">
</td>
<td style="height: 24px">
</td>
</tr>
<tr>
<td>
Company Name*</td>
<td>
<asp:DropDownList ID="company" runat="server">
</asp:DropDownList>
</td>
<td>
<asp:CustomValidator ID="selectComapnyForSaveButton" runat="server" ControlToValidate="company"
ErrorMessage="Select A Company" OnServerValidate="selectComapnyForSaveButton_ServerValidate"
ValidationGroup="save"></asp:CustomValidator></td>
<td style="width: 101px">
Package*</td>
<td style="width: 126px">
<asp:TextBox ID="txtpackage" runat="server" Width="197px"></asp:TextBox></td>
<td>
<asp:RequiredFieldValidator ControlToValidate="txtpackage" ValidationGroup="save" ID="packageRequire" runat="server" ErrorMessage="Package Require"></asp:RequiredFieldValidator>
</td>
<td>
<asp:Button ID="Btnok" runat="server" Text="Ok" Width="43px" OnClick="Btnok_Click" ValidationGroup="verify" /></td>
</tr>
<tr>
<td>
Course*</td>
<td>
<asp:UpdatePanel id="update" runat="server">
<contenttemplate>
<asp:DropDownList ID="course" runat="server" AutoPostBack="True" OnSelectedIndexChanged="course_SelectedIndexChanged">
</asp:DropDownList>
</contenttemplate>
</asp:UpdatePanel><asp:CustomValidator ID="coursenecessaryForSaveButton" runat="server"
ControlToValidate="course" ErrorMessage="Select A Course" OnServerValidate="coursenecessaryForSaveButton_ServerValidate"
ValidationGroup="save"></asp:CustomValidator></td>
<td>
<asp:CustomValidator ID="courseNecessary" runat="server" ErrorMessage="Select A Course"
OnServerValidate="courseNecessary_ServerValidate" ValidationGroup="verify"></asp:CustomValidator></td>
<td style="width: 101px">
Branch Name*</td>
<td style="width: 126px">
<asp:UpdatePanel id="upchak" runat="server">
<contenttemplate>
<asp:CheckBoxList id="Branch" runat="server" OnSelectedIndexChanged="Branch_SelectedIndexChanged">
</asp:CheckBoxList>
</contenttemplate>
</asp:UpdatePanel>
</td>
<td>
<asp:CustomValidator id="branchRequire" runat="server" ValidationGroup="verify" ClientValidationFunction="BranchCheckBoxCheck" ErrorMessage="Select A Branch"></asp:CustomValidator>
<asp:CustomValidator id="branchrequireForSaveButton" runat="server" ValidationGroup="save" ClientValidationFunction="BranchCheckBoxCheck" ErrorMessage="Select A Branch"></asp:CustomValidator>
<%-- <asp:CustomValidator ID="branchNotexist" runat="server" ErrorMessage="No Branch Exist" ValidationGroup="verify" ControlToValidate="Branch" OnServerValidate="branchNotexist_ServerValidate"></asp:CustomValidator>--%>
</td>
<td>
<asp:Button ValidationGroup="save" ID="Btnsave" runat="server" Text="Save" OnClick="Btnsave_Click" />
</td>
</tr>
<tr>
<td>
Company Visit Date*</td>
<td>
<asp:TextBox ID="vistDate" runat="server" ></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator ID="dateForSaveButton" runat="server" ControlToValidate="vistDate"
ErrorMessage="Visit Date Require" ValidationGroup="save"></asp:RequiredFieldValidator></td>
<td style="width: 101px">
</td>
<td style="width: 126px">
<asp:Label ID="noRecordExistOnOkButton" runat="server" Text="Label" Width="178px"></asp:Label></td>
<td>
</td>
<td>
</td>
</tr>
<tr>
<td>
Venue*
</td>
<td>
<asp:TextBox ID="txtvenue" runat="server"></asp:TextBox>
</td>
<td colspan="4">
<asp:RequiredFieldValidator ID="venRequire" runat="server" ControlToValidate="txtvenue"
ErrorMessage="Insert venu" ValidationGroup="save" Width="73px"></asp:RequiredFieldValidator>
<asp:Label ID="gridNotExist" ForeColor="Red" runat="server" Width="439px"></asp:Label></td>
<td>
</td>
</tr>
<tr>
<td colspan="5" style="height: 16px">
</td>
</tr>
<tr>
<td colspan="5">
<asp:GridView id="GridView1" AllowSorting="true" EnableViewState="true" AutoGenerateColumns="false" runat="server" AllowPaging="True" DataKeyNames="branch_id, default_check, student_id" OnPageIndexChanging="GridView1_PageIndexChanging" PageSize="2">
<Columns>
<asp:TemplateField HeaderText="Select Student">
<ItemTemplate>
<asp:CheckBox id="Chek" runat="server" Text="select" ></asp:CheckBox>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField HeaderText="Enrollment No." DataField="enrollment_no" />
<asp:BoundField HeaderText="Course Name" DataField="course_name"/>
<asp:BoundField HeaderText="Branch Name" DataField="branch_name"/>
<asp:BoundField HeaderText="Email Id" DataField="email" />
<asp:BoundField HeaderText="Mobile" DataField="mobile"/>
<asp:BoundField HeaderText="Name" DataField="first_name"/>
<asp:BoundField HeaderText="Surname" DataField="last_name" />
</Columns>
</asp:GridView>
</td>
</tr>
<tr>
<td>
</td>
</tr>
</table>
</div>
<br />
<br />
<br />
<br />
<br />
<br />
<br />
</asp:Content>
, теперь я хочу сделать пейджинг без потери состояния флажка и хочу сохранить строку выбранного флажка в База данных на кнопку Сохранить Нажмите, как добиться этого, пожалуйста, дайте мне знать. Я использую платформу dot net 2.0 ...
@PhilPursglove: - Мое решение похоже на это
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{ Response.Write(GridView1.PageIndex.ToString());
int d = GridView1.PageCount; bool[] values = new bool[GridView1.PageSize];
CheckBox chb;
for (int i = 0; i < GridView1.Rows.Count; i++)
{
chb = (CheckBox)GridView1.Rows[i].FindControl("Chek");
if (chb != null)
{
values[i] = chb.Checked;
}
}
Session["page" + GridView1.PageIndex] = values;
GridView1.PageIndex = e.NewPageIndex;
GridView1.DataSource = (DataTable)ViewState["dt"];
GridView1.DataBind(); GridView1.Visible = true; Btnsave.Visible = true;
}
protected void GridView1_PreRender(object sender, EventArgs e)
{
if (Session["page" + GridView1.PageIndex] != null)
{ CheckBox chb; bool[] values = (bool[])Session["page" + GridView1.PageIndex];
for (int i = 0; i < GridView1.Rows.Count; i++)
{ chb = (CheckBox)GridView1.Rows[i].FindControl("Chek");
chb.Checked = values[i];
}
}
}
, теперь я хочу нажать кнопку сохранения, чтобы сохранить выбранные значения строки chkbox в базе данных
1
задан NoviceToDotNet 3 September 2010 в 06:34
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