选中复选框时如何获取gridview行值。我在按钮的点击事件中使用此代码，但它不起作用。
Html代码：
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Width="100%"
DataKeyNames="ReportId" OnRowDataBound="GridView2_OnRowDataBound" ForeColor="#333333"
PageSize="5" Style="text-align: center">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="CheckBoxG1" runat="server" />
</ItemTemplate>
C＃代码：
protected void Button1_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in GridView1.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
CheckBox CheckRow = (row.Cells[0].FindControl("CheckBoxG1") as CheckBox);
if (CheckRow.Checked)
{
}
}
}
}
我看不出你如何绑定数据以及你的按钮位置在哪里。所以这是工作样本。
<asp:Button Text="text" runat="server" OnClick="Unnamed_Click" />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="ReportId" Width="100%"
ForeColor="#333333" PageSize="5" Style="text-align: center">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="CheckBoxG1" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
GridView1.DataSource = new RowModel[]
{
new RowModel { ReportId = "1" },
new RowModel { ReportId = "2" },
new RowModel { ReportId = "3" }
};
GridView1.DataBind();
}
}
protected void Unnamed_Click(object sender, EventArgs e)
{
foreach (GridViewRow row in GridView1.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
CheckBox CheckRow = (row.Cells[0].FindControl("CheckBoxG1") as CheckBox);
if (CheckRow.Checked)
{
}
}
}
}
public class RowModel
{
public string ReportId { get; set; }
}
在我的示例代码中，我在绑定gridview时考虑手动数据，因为您没有指定如何通过数据库绑定gridview，但它应该在两种方法中都有效。我的HTML代码
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Get Checkbox Selected Row Values from Gridview in Asp.net</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="gvDetails" DataKeyNames="UserId" AutoGenerateColumns="false" CellPadding="5" runat="server">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkSelect" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField HeaderText="UserId" DataField="UserId" />
<asp:BoundField HeaderText="UserName" DataField="UserName" />
<asp:BoundField HeaderText="Education" DataField="Education" />
<asp:BoundField HeaderText="Location" DataField="Location" />
</Columns>
<HeaderStyle BackColor="#df5015" Font-Bold="true" ForeColor="White" />
</asp:GridView>
<asp:Button ID="btnProcess" Text="Get Selected Records" runat="server"
Font-Bold="true" onclick="btnProcess_Click" /><br />
<asp:Label ID="lblmsg" runat="server" />
</div>
</form>
</body>
</html> Code Behind：这仅用于为GridView绑定适当的数据
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindGridviewData();
}
}
protected void BindGridviewData()
{
DataTable dt = new DataTable();
dt.Columns.Add("UserId", typeof(Int32));
dt.Columns.Add("UserName", typeof(string));
dt.Columns.Add("Education", typeof(string));
dt.Columns.Add("Location", typeof(string));
DataRow dtrow = dt.NewRow(); // Create New Row
dtrow["UserId"] = 1; //Bind Data to Columns
dtrow["UserName"] = "SureshDasari";
dtrow["Education"] = "B.Tech";
dtrow["Location"] = "Chennai";
dt.Rows.Add(dtrow);
dtrow = dt.NewRow(); // Create New Row
dtrow["UserId"] = 2; //Bind Data to Columns
dtrow["UserName"] = "MadhavSai";
dtrow["Education"] = "MBA";
dtrow["Location"] = "Nagpur";
dt.Rows.Add(dtrow);
dtrow = dt.NewRow(); // Create New Row
dtrow["UserId"] = 3; //Bind Data to Columns
dtrow["UserName"] = "MaheshDasari";
dtrow["Education"] = "B.Tech";
dtrow["Location"] = "Nuzividu";
dt.Rows.Add(dtrow);
gvDetails.DataSource = dt;
gvDetails.DataBind();
}
Button_Click事件的代码
protected void btnProcess_Click(object sender, EventArgs e)
{
string str = string.Empty;
string strname = string.Empty;
string edu = string.Empty;
string location = string.Empty;
foreach (GridViewRow gvrow in gvDetails.Rows)
{
CheckBox chk = (CheckBox)gvrow.FindControl("chkSelect");
if (chk != null & chk.Checked)
{
//To Fetch the row index
//str += gvDetails.SelectedIndex.ToString();
//To Fetch the value of Selected Row.
str += gvDetails.DataKeys[gvrow.RowIndex].Value.ToString() + ',';
strname += gvrow.Cells[2].Text + ',';
edu += gvrow.Cells[3].Text + ',';
location += gvrow.Cells[4].Text + ',';
}
}
str = str.Trim(",".ToCharArray());
strname = strname.Trim(",".ToCharArray());
lblmsg.Text = "Selected UserIds: <b>" + str + "</b><br/>" + "Selected UserNames: <b>" + strname + "</b><br>" + " Education: <b>" + edu + "</b><br>" + " Location: <b>" + location + "</b><br>";
}
}