复选框选中时如何显示gridview [英] how to visible gridview when checkbox checked

问题描述

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

推荐答案

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();
    }
 

}

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