复选框选中时如何显示gridview
我想在选中复选框时显示网格视图..我已经尝试过但它没有来
我的代码是
Default.aspx
i want to show grid view when checkbox is checked..i have tried but it is not coming
my code is
Default.aspx
< asp：CheckBox ID =CheckBox1runat = serverOnCheckedChanged =CheckBox1_CheckedChangedAutoPostBack =true/>< asp：GridView
ID =GridView1runat =serverAutoGenerateColumns =FalseVisible =false
DataSourceID =SqlDataSource1>
< columns> < asp：BoundField DataField =InameHeaderText =InameSortExpression =Iname/>
< asp：BoundField DataField =coursesHeaderText =courses
SortExpression =courses/>
< asp：BoundField DataField =费用HeaderText =费用SortExpression =费用/>
< asp：SqlDataSource ID =SqlDataSource1runat =server
ConnectionString =<％$ ConnectionStrings：peersConnectionString％>
SelectCommand =SELECT * FROM [pubs]>
<asp:CheckBox ID="CheckBox1" runat="server" OnCheckedChanged="CheckBox1_CheckedChanged" AutoPostBack="true"/><asp:GridView
ID="GridView1" runat="server" AutoGenerateColumns="False" Visible="false"
DataSourceID="SqlDataSource1" >
<columns> <asp:BoundField DataField="Iname" HeaderText="Iname" SortExpression="Iname" />
<asp:BoundField DataField="courses" HeaderText="courses"
SortExpression="courses" />
<asp:BoundField DataField="fees" HeaderText="fees" SortExpression="fees" />
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:peersConnectionString %>"
SelectCommand="SELECT * FROM [pubs]">
Default.cs
protected void Page_Load（object sender，EventArgs e ）
{
GridView1.DataBind（）;
}
protected void CheckBox1_CheckedChanged（object sender，EventArgs e ）
{
if（CheckBox1.Checked）
{
GridView1.Visible = false;
}
}
}
我在pubs表中有数据
Default.cs
protected void Page_Load(object sender, EventArgs e)
{
GridView1.DataBind();
}
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
if (CheckBox1.Checked)
{
GridView1.Visible = false;
}
}
}
and i have data in pubs table
ConnectionStrings：peersConnectionString％>
SelectCommand =SELECT * FROM [pubs]>
ConnectionStrings:peersConnectionString %>"
SelectCommand="SELECT * FROM [pubs]">
Default.cs
protected void Page_Load（object sender，EventArgs e）
{
GridView1.DataBind（）;
}
protected void CheckBox1_CheckedChanged（object sender，EventArgs e）
{
if（CheckBox1.Checked）
{
GridView1.Visible = false;
}
}
}
我在pubs表中有数据
Default.cs
protected void Page_Load(object sender, EventArgs e)
{
GridView1.DataBind();
}
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
if (CheckBox1.Checked)
{
GridView1.Visible = false;
}
}
}
and i have data in pubs table
你应该在你的页面上回复帖子加载你再次招标，这意味着刷新网格视图的默认值然后它将转到你的按钮代码，所以你的页面加载的代码将是：
you should handle the post back , on your page load you are biding again , which means refresh the grid view with default values then it will go to your button code , so the code of your page load will be :
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
// Validate initially to force asterisks
// to appear before the first roundtrip.
GridView1.DataBind();
}
}