GridView 编辑、删除、【含有dropdownlist、fileupload、Image控件】

最新推荐文章于 2022-01-14 23:18:32 发布

weblogical

最新推荐文章于 2022-01-14 23:18:32 发布

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文章标签： image textbox dataset table null 数据库

本文链接：https://blog.youkuaiyun.com/weblogical/article/details/2310753

本文介绍了一个疾病信息管理系统的实现细节，包括使用ASP.NET进行界面设计、数据绑定及更新操作的方法。系统能够实现疾病信息的增删改查等功能，并通过GridView控件进行数据展示。

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using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using mmmLib.Disease;

public partial class Admin_DiseaseOutLine : System.Web.UI.Page

{

DiseaseDetails disease = new DiseaseDetails();

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

BindData();

}

void BindData()

{

using (DataSet ds = (DataSet)disease.Execute("CommonSelect", "table", "select * from ForthClass order by ID Desc"))

{

GridView1.DataSource = ds.Tables[0].DefaultView;

GridView1.DataBind();

}

protected void GridView1_PageIndexChanged(object sender, EventArgs e)

{

}

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)

{

GridView1.PageIndex = e.NewPageIndex;

BindData();

}

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

{

GridView1.EditIndex = -1;

BindData();

}

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

{

string did = GridView1.DataKeys[e.RowIndex].Value.ToString();

int fid=Convert.ToInt32(did);

try

{

if ((bool)disease.Execute("DeleteForthClass", "int", fid))

{

BindData();

}

catch (Exception ep)

{

ClientScript.RegisterClientScriptBlock(this.GetType(), "error", ManageClass._alert("数据库错误，错误原因：" + ep.Message));

Response.End();

}

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

{

int id = int.Parse(GridView1.DataKeys[e.RowIndex].Value.ToString());

DropDownList ddl = (DropDownList)GridView1.Rows[e.RowIndex].FindControl("ddlks");

int tclassid = int.Parse(ddl.SelectedItem.Value);

string forthclassname = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TextBox1")).Text;

string fullname = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TextBox2")).Text;

string bodyposition = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TextBox3")).Text;

string diseasetext = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TextBox4")).Text;

FileUpload fu = (FileUpload)GridView1.Rows[e.RowIndex].FindControl("imgupload");

string diseaseimg = null;

if (fu.HasFile)

{

diseaseimg = Common.UpLoadFile(fu, "../120mdFile/");

}

else

{

diseaseimg = ((Image)GridView1.Rows[e.RowIndex].FindControl("Image2")).ImageUrl;

if (diseaseimg == null) diseaseimg = "";

}

string diseasebiaoxian = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TextBox7")).Text;

if (diseasebiaoxian == null) diseasebiaoxian = "";

try

{

if ((bool)disease.Execute("EditForthClass", "int", id, tclassid, forthclassname, fullname, bodyposition, diseasetext, diseaseimg, diseasebiaoxian))

{

ClientScript.RegisterClientScriptBlock(this.GetType(), "ok", ManageClass._alert("数据已被保存!"));

}

catch

{

ClientScript.RegisterClientScriptBlock(this.GetType(), "ok", ManageClass._alert("未能保存记录!"));

}

finally

{

GridView1.EditIndex = -1;

BindData();

}

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)

{

GridViewRow row = GridView1.SelectedRow;

row.BackColor = System.Drawing.Color.Crimson;

}

protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)

{

}

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

{

GridView1.EditIndex = e.NewEditIndex;

GridView1.EditRowStyle.BackColor = System.Drawing.Color.FromName("#F7CE90");

BindData();

}

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

{

//if ((DropDownList)e.Row.FindControl("ddlks") != null)

//{

// DropDownList ddl = (DropDownList)e.Row.FindControl("ddlks");

// ddl.Items.Clear();

// ddl.DataSource = ((DataSet)disease.Execute("CommonSelect", "table", "select * from Tclass")).Tables[0].DefaultView;

// ddl.DataTextField = "TclassName";

// ddl.DataValueField = "ID";

// ddl.DataBind();

// ddl.SelectedValue = "";

//}//判定当前的行是否属于datarow类型的行

if (e.Row.RowType == DataControlRowType.DataRow)

{

e.Row.Attributes.Add("onmouseover", "currentcolor=this.style.backgroundColor;this.style.backgroundColor='yellow',this.style.fontWeight='';");

e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=currentcolor,this.style.fontWeight='';");

e.Row.Attributes.Add("onclick", "this.style.backgroundColor='#99cc00'; this.style.color='buttontext';this.style.cursor='default';");

}

protected DataTable CreateSource()

{

return ((DataSet)disease.Execute("CommonSelect", "table", "select * from Tclass")).Tables[0];

}

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DiseaseOutLine.aspx.cs" Inherits="Admin_DiseaseOutLine"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

<asp:GridView ID="GridView1" runat="server" BackColor="White" BorderColor="#336666" BorderStyle="Double" BorderWidth="3px" CellPadding="4" GridLines="Horizontal" AutoGenerateColumns="False" OnPageIndexChanged="GridView1_PageIndexChanged" OnPageIndexChanging="GridView1_PageIndexChanging" OnRowCancelingEdit="GridView1_RowCancelingEdit" OnRowDataBound="GridView1_RowDataBound" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" OnSelectedIndexChanging="GridView1_SelectedIndexChanging" DataKeyNames="ID" AllowPaging="True" PageSize="15">

<asp:TemplateField HeaderText="序号">

<%# GridView1.PageIndex*GridView1.PageSize+GridView1.Rows.Count+1%>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="疾病名字">

<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("ForthClassName") %>'></asp:TextBox><asp:RequiredFieldValidator

ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox1" ErrorMessage="请输入疾病名字"></asp:RequiredFieldValidator>

</EditItemTemplate>

<asp:Label ID="Label1" runat="server" Text='<%# Bind("ForthClassName") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="疾病全名">

<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("FullName") %>'></asp:TextBox>

<asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ControlToValidate="TextBox2"

ErrorMessage="*"></asp:RequiredFieldValidator>

</EditItemTemplate>

<asp:Label ID="Label2" runat="server" Text='<%# Bind("FullName") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="身体部位">

<asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("BodyPosition") %>'></asp:TextBox>

<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="TextBox3"

ErrorMessage="*"></asp:RequiredFieldValidator>

</EditItemTemplate>

<asp:Label ID="Label3" runat="server" Text='<%# Bind("BodyPosition") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="疾病简介">

<asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("DiseaseText") %>' TextMode="MultiLine"></asp:TextBox>

<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="TextBox4"

ErrorMessage="*"></asp:RequiredFieldValidator>

</EditItemTemplate>

<asp:Label ID="Label4" runat="server" Text='<%# Bind("DiseaseText") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="所属科室">

<asp:DropDownList ID="ddlks" runat="server" DataSource="<%# CreateSource() %>" DataValueField="ID" DataTextField="TClassName" SelectedValue='<%# Eval("TClassID") %>'>

</asp:DropDownList>

</EditItemTemplate>

<asp:DropDownList ID="ddlks1" runat="server" DataSource="<%# CreateSource() %>" SelectedValue='<%# Eval("TClassID") %>' DataValueField="ID" DataTextField="TClassName">

</asp:DropDownList>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="疾病图片">

<asp:Image ID="Image2" runat="server" ImageUrl='<%# Bind("DiseaseImg") %>' />

<asp:FileUpload ID="imgupload" runat="server" />(为空则不改变疾病图片)

</EditItemTemplate>

<asp:Image ID="Image1" runat="server" ImageUrl='<%# Bind("DiseaseImg") %>' />

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="疾病表现">

<asp:TextBox ID="TextBox7" runat="server" Text='<%# Bind("DiseaseBiaoxian") %>' TextMode="MultiLine"></asp:TextBox>

<asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="TextBox7"

ErrorMessage="*"></asp:RequiredFieldValidator>

</EditItemTemplate>

<asp:Label ID="Label7" runat="server" Text='<%# Bind("DiseaseBiaoxian") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="操作" ShowHeader="False">

<asp:LinkButton ID="LinkButton5" runat="server" CausesValidation="True" CommandName="update">Update</asp:LinkButton>

<asp:LinkButton ID="LinkButton4" runat="server" CausesValidation="False" CommandName="cancel">Cancel</asp:LinkButton>

</EditItemTemplate>

<asp:LinkButton ID="LinkButton1" runat="server" CommandName="edit" CausesValidation="false" OnClientClick="return confirm('确认要编辑吗？');">Edit</asp:LinkButton>

<asp:LinkButton ID="LinkButton2" runat="server" CommandName="delete" CausesValidation="False" OnClientClick="return confirm('确认要删除吗？');">Delete</asp:LinkButton>

<asp:LinkButton ID="LinkButton3" runat="server" CommandName="select" CausesValidation="False">Select</asp:LinkButton>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

</div>

</form>

</body>

</html>