templatefield 动态_动态添加TemplateField列

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于 2021-02-11 12:16:43 发布

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文章标签： templatefield 动态

本文链接：https://blog.youkuaiyun.com/weixin_29172201/article/details/114007349

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本文介绍了如何在ASP.NET GridView中使用GridViewTextTemplate类创建自定义的Header和DataRow模板，以及如何动态添加TemplateField并设置数据绑定。通过实例展示了如何根据不同的数据类型生成相应的表头和数据单元格。

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GridViewTextTemplate类：

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI.WebControls;

///

///GridViewTextTemplate 的摘要说明

///

public class GridViewTextTemplate : System.Web.UI.ITemplate

{

private DataControlRowType templateType;

private string columnName;

private string cId;

public GridViewTextTemplate(DataControlRowType type, string colname, string controlId)

{

templateType = type;

columnName = colname;

cId = controlId;

}

public void InstantiateIn(System.Web.UI.Control container)

{

// Create the content for the different row types.

switch (templateType)

{

case DataControlRowType.Header:

// Create the controls and set id properties to put in the header

Literal myHeadLiteral = new Literal();

myHeadLiteral.ID = cId;

myHeadLiteral.Text = "" + columnName + "";

container.Controls.Add(myHeadLiteral);

break;

case DataControlRowType.DataRow:

// Create the controls and set id properties to put in a data row

TextBox myTextBox = new TextBox();

myTextBox.ID = cId;

myTextBox.DataBinding += new EventHandler(this.TextBoxDataBinding);

myTextBox.Width = 100;

container.Controls.Add(myTextBox);

break;

default:

// Insert code to handle unexpected values.

break;

}

private void TextBoxDataBinding(Object sender, EventArgs e)

{

TextBox myTextBox = (TextBox)sender;

GridViewRow row = (GridViewRow)myTextBox.NamingContainer;

myTextBox.Text = System.Web.UI.DataBinder.Eval(row.DataItem, columnName).ToString();

}

}在后台GridView动态添加TemplateField：//parameter_description绑定的数据 textParameterDesc是Text的ID

TemplateField tField;

tField = new TemplateField();

tField.HeaderTemplate = new GridViewTextTemplate(DataControlRowType.Header, "说明", "textParameterDescHd");

tField.ItemTemplate = new GridViewTextTemplate(DataControlRowType.DataRow, "parameter_description", "textParameterDesc");

GridView1.Columns.Add(tField);或者：GridView1.Columns.Add(new TemplateField() { HeaderTemplate = new GridViewTextTemplate(DataControlRowType.Header, "序号", ""), ItemTemplate = new GridViewTextTemplate(DataControlRowType.DataRow, "PlanSN", "") });

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2012-10-23 15:03