后台代码public partial class Default : System.Web.UI.Page
{
public string j;
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=.\\SQLEXPRESS;AttachDbFilename=E:\\业务\\App_Data\\yw.mdf;Integrated Security=True;User Instance=True";
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bind();
}
} protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
bind();
} //删除数据
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string sqlstr = "delete from yw where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon = new SqlConnection(strCon);
sqlcom = new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
} //更新数据
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update yw set yw='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
+ GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom = new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
} //取消数据
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
bind();
} //绑定数据
public void bind()
{
//修改下面两行代码,注意where后面要有空格
string i;
i = DropDownList1.SelectedItem.Text;
if (int.Parse(DropDownList1.SelectedValue) == 0)
j = "yw= 'aa' or yw= 'bb'";
if (int.Parse(DropDownList1.SelectedValue) == 1)
j = "yw='" + i + "'";
if (int.Parse(DropDownList1.SelectedValue) == 2)
j = "yw='" + i + "'";
string sqlstr = "select * from yw where " + j;
sqlcon = new SqlConnection(strCon);
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "yw");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new string[] { "id" };//主键
GridView1.DataBind();
sqlcon.Close();
}
protected void Button1_Click(object sender, EventArgs e)
{
bind();
}
}
前台代码
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
ForeColor="#333333" GridLines="None" OnRowEditing="GridView1_RowEditing" OnRowDeleting="GridView1_RowDeleting"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" >
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<Columns >
<asp:BoundField DataField="id" HeaderText="用户ID" ReadOnly="True" />
<asp:BoundField DataField="name" HeaderText="用户姓名" ReadOnly="true" />
<asp:BoundField DataField="tel" HeaderText="联系方式" ReadOnly="true" />
<asp:BoundField DataField="yw" HeaderText="业务情况" />
<asp:BoundField DataField="qb" HeaderText="业务情况" Visible="False" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns >
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView >
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true">
<asp:ListItem Value="0">y</asp:ListItem>
<asp:ListItem Value="1">aa</asp:ListItem>
<asp:ListItem Value="2">bb</asp:ListItem>
</asp:DropDownList>
<asp:Button ID="Button1" runat="server" Text="查询" onclick="Button1_Click" />
我该如何更改,使下面的输入框更改为下拉列表,并能将其数据返回到数据库
GridViewASPdroplistdown数据更新数据库
{
public string j;
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=.\\SQLEXPRESS;AttachDbFilename=E:\\业务\\App_Data\\yw.mdf;Integrated Security=True;User Instance=True";
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bind();
}
} protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
bind();
} //删除数据
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string sqlstr = "delete from yw where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon = new SqlConnection(strCon);
sqlcom = new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
} //更新数据
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update yw set yw='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
+ GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom = new SqlCommand(sqlstr, sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
} //取消数据
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
bind();
} //绑定数据
public void bind()
{
//修改下面两行代码,注意where后面要有空格
string i;
i = DropDownList1.SelectedItem.Text;
if (int.Parse(DropDownList1.SelectedValue) == 0)
j = "yw= 'aa' or yw= 'bb'";
if (int.Parse(DropDownList1.SelectedValue) == 1)
j = "yw='" + i + "'";
if (int.Parse(DropDownList1.SelectedValue) == 2)
j = "yw='" + i + "'";
string sqlstr = "select * from yw where " + j;
sqlcon = new SqlConnection(strCon);
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "yw");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new string[] { "id" };//主键
GridView1.DataBind();
sqlcon.Close();
}
protected void Button1_Click(object sender, EventArgs e)
{
bind();
}
}
前台代码
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
ForeColor="#333333" GridLines="None" OnRowEditing="GridView1_RowEditing" OnRowDeleting="GridView1_RowDeleting"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" >
<FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
<Columns >
<asp:BoundField DataField="id" HeaderText="用户ID" ReadOnly="True" />
<asp:BoundField DataField="name" HeaderText="用户姓名" ReadOnly="true" />
<asp:BoundField DataField="tel" HeaderText="联系方式" ReadOnly="true" />
<asp:BoundField DataField="yw" HeaderText="业务情况" />
<asp:BoundField DataField="qb" HeaderText="业务情况" Visible="False" />
<asp:CommandField HeaderText="编辑" ShowEditButton="True" />
<asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
</Columns >
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView >
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true">
<asp:ListItem Value="0">y</asp:ListItem>
<asp:ListItem Value="1">aa</asp:ListItem>
<asp:ListItem Value="2">bb</asp:ListItem>
</asp:DropDownList>
<asp:Button ID="Button1" runat="server" Text="查询" onclick="Button1_Click" />
我该如何更改,使下面的输入框更改为下拉列表,并能将其数据返回到数据库
GridViewASPdroplistdown数据更新数据库
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那你就换啊!
<asp:TemplateField HeaderText="业务情况">
<ItemTemplate>
<%# Eval("业务情况")%>
</ItemTemplate>
<EditItemTemplate>
<asp:HiddenField ID="HDFSex" runat="server" Value='<%# Eval("业务情况") %>' />
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true">
<asp:ListItem Value="0">y</asp:ListItem>
<asp:ListItem Value="1">aa</asp:ListItem>
<asp:ListItem Value="2">bb</asp:ListItem>
</asp:DropDownList> </EditItemTemplate>
<ItemStyle Width="100px" />
</asp:TemplateField> 更新你就在这里面写语句啊:
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
我说了,我不会调用DropDownList的text,我发这个帖子就是为了protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)里面的语句,怎么写
string value = ((DropDownList)GridView1.Rows[e.RowIndex].FindControl("DropDownList1")).SelectedValue;插入数据库的语句不要我写了吧?!