如何操作gridview中动态生成的模板列checkbox？
我在gridview中动态生成模板列，类型为checkbox，然后把后台数据库表中的数据对其进行绑定，代码如下：
private void setTemplateFields()
{
TemplateField templateField1 = new TemplateField();
templateField1.ItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, "列1 ");
TemplateField templateField2 = new TemplateField();
templateField2.ItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, "列2 ");
//将字段添加到GridView
GridView1.Columns.Add(templateField1);
GridView1.Columns.Add(templateField2);
}
//样板类产生器，以创建样板字段
public class GridViewTemplate : ITemplate
{
private DataControlRowType templateType;
private string columnName;
public GridViewTemplate(DataControlRowType type, string colname)
{
templateType = type;
columnName = colname;
}
public void InstantiateIn(System.Web.UI.Control container)
{
if (templateType == DataControlRowType.DataRow)
{
//创建样板字段外观
//TextBox txtEmployeeID = new TextBox();
//RadioButton txtFirstName = new RadioButton();
//指定样板字段的数据绑定事件
switch (columnName)
{
case "列1 ":
CheckBox cbCol1 = new CheckBox();
cbCol1.DataBinding += new EventHandler(this.cbCol1_DataBinding);
container.Controls.Add(cbCol1);
break;
case "列2 ":
CheckBox cbCol2 = new CheckBox();
cbCol2.DataBinding += new EventHandler(this.cbCol2_DataBinding);
container.Controls.Add(cbCol2);
break;
}
}
}
//样板的DataBind
private void cbCol1_DataBinding(Object sender, EventArgs e)
{
CheckBox cbx = (CheckBox)sender;
//取得GridViewRow(包含CheckBox控件)
GridViewRow row = (GridViewRow)cbxCity.NamingContainer;
//进行数据绑定
cbx.Text = DataBinder.Eval(row.DataItem, "col1 ").ToString();
}
private void cbCol2_DataBinding(Object sender, EventArgs e)
{
CheckBox cbx = (CheckBox)sender;
//取得GridViewRow(包含CheckBox控件)
GridViewRow row = (GridViewRow)cbxCity.NamingContainer;
//进行数据绑定
cbx.Text = DataBinder.Eval(row.DataItem, "col2 ").ToString();
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
setTemplateFields();
}
}
现在，数据能够正确显示。我要做的是，（1）根据数据库表中的值确定每一个对应的checkbox的enable的值，（2）获取每一个checkbox.checked的值，根据获得的值对后台数据库进行操作。在GridView1_RowDataBound中通过命令(CheckBox)e.Row.Cells[0].FindControl（ "cbCol1 "）总是得到NULL。各位大侠，怎么样才能完成我的上两个需求？
[解决办法]
If(e.Row.RowType == DataControlRowType.DataRow){
((CheckBox)e.Row.Cells[0].FindControl（ "cbCol1 ").checked=True;
}
[解决办法]
呵呵。。。DataKeys里面就可以绑啊
[解决办法]
protected void btnDel_Click(object sender, EventArgs e)
{
int intRowCount = this.GridView1.Rows.Count;
string strInfo = string.Empty;
for (int i = 0; i < intRowCount; i++)
{
CheckBox chk = (CheckBox) this.GridView1.Rows[i].Cells[0].FindControl( "chkDelete ");
if (chk.Checked)
{
this.GridView1.Rows[i].Visible = false;
strInfo += this.GridView1.Rows[i].Cells[1].Text + "被选中. " + " <br> ";
}
}
this.lblInfo.Text = strInfo;
}
[解决办法]
将GridView1_RowDataBound 的事件换成GridView1_ItmCreated事件,就能取到值了~~~~~~~
[解决办法]
那你可以把无关的列隐藏不就好了。还有你的checkbox列的摸版列是固定的还是动态生成出来的。
[解决办法]
(CheckBox)e.Row.Cells[0].FindControl（ "cbCol1 ")
