Using the DataGrid control
The DataGrid control is a bound control similar to a spreadsheet, and can display a series of rows and columns that represent the records and fields of the Recordset object. You can use the DataGrid to create an application that allows end users to read and write to most databases. The DataGrid
JQuery Easyui's DataGrid component function is very powerful, but performance is not very optimistic, and for performance problems, the network almost can not find the relevant optimization data, so-called cattle people may be deterred. This blog will be with the analysis of the DataGrid component performance problems,
The previous article introduced how to create a DataGrid with subgrid, but it only displays data and does not involve editing.
So what should I do if subgrid is needed to implement the Editable function?
To solve this problem, we must first have a clear idea and a clear goal. What should we do with subgrid?
Let's use a specific example to illustrate the problem. Let's look at the project we are working on recently. There is a requirement like this:
1.
default code above will report an error upon execution. The problem is that the item Renderer of spark is generated in advance and can be used repeatedly to present data. When a DataGrid is created, the Renderer is automatically created. Even if there is no data (data = NULL) at this time, a problem occurs. If data is null, data [...] is used. an error is inevitable, so the above Code should be changed:
override public function prepare(hasBeenRecycle
The DataGrid in Easyui presents data in tabular format and provides rich support for selecting, sorting, grouping, and editing data. The DataGrid is designed to shorten development time and make it unnecessary for developers to have specific knowledge. It is lightweight and feature-rich. Cell merging, multiple column headings, frozen columns, and footers are just a few of the features.
1. Review of section
datagrid|web| Control | Problem article translation at ease in the work of the actual problems encountered, and check MSDN, did not find the Chinese information, online on this aspect of practical information is not much, the intention to collect and translate, in this exchange with you, Welcome to criticize: zyfly0808@hotmail.com
Content--
Preface: The DataGrid control in a Windows Forms web form
①. Co
The number and amount of Order details need to be summarized in order processing recently. Therefore, the footer summary function of the Datagrid component of EasyUI is involved. The official tutorial is as follows:
Tutorial» Displaying Summary Information in DataGrid's Footer
In this tutorial, we will show you how to display the summary rows in the footer of datagrid
1. Change the color of a row based on its value.
1. Create a project and add a code layer. The code in the Code layer is as follows:
Import fl. data. DataProvider;
Var dataGrid: DataGrid = new DataGrid ();DataGrid. x = 100;DataGrid. y = 100;
method, the former is slightly safer, and the latter uses the component method.Add an export button to the page and write it to its code:// Specify the browser typeResponse. contenttype = "Applicaion/vnd. MS-excel ";// The character set is empty.Response. charset = "";This. enalbeviewstate = false;System. Io. stringwriter Sw = new system. Io. stringwriter ();System. Web. UI. htmltextwriter hW = new system. Web. UI. htmltextwriter (SW );Datagrid1.rend
The data of other projects needs to be called across domains in recent projects. The datagrid component of EasyUI is also used in other projects. You can define the url attribute of the datagrid as the url address of another project directly, however, the test showed that json data was indeed returned, but the json data prompts "invalid label" error. The solution
The data of other projects needs to be called across domains in recent projects. The datagrid component of EasyUI is also used in other projects. You can define the url attribute of the datagrid as the url address of another project directly, however, the test showed that json data was indeed returned, but the json data prompts "invalid label" error. The solution
First of all: the bug described in this article exists in 1.3.3 and later, other low version, I did not test, too old version do not want to toss.Batting practice when writing the SQL Execution tool on the front-end, the table uses the JQuery Easyui DataGrid, because the user's SQL is strange, so when a column name (field) such as "blocks*8/1024", "Trunc (sysdate)" appears, The table will be misplaced, and columns with special characters cannot be res
Introduction to Datagrid|web| Controls
In the first part we studied the basic function of a DataGrid, which can display data in an HTML table. In the first section, I explained that it is very easy to bind the database content to the DataGrid, and all we have to do is generate a DataReader object from the SQL query, setting the DataGrid's DataSource property to
DataGrid classic skills
A long time ago, I wanted to write something about DataGrid/datalist. However, on the one hand, I have not learned much about myself, and on the other hand, I have never been able to get started, it has been more than a year since the beginning.DataGrid/datalist in ASP. net, I do not need to emphasize any more. Most of the two controls will be used for displaying table data (of cour
Asp.net|datagrid|web long ago wanted to write something about datagrid/datalist, but has always been, on the one hand, the study is not deep, on the other hand, the total feel no writing, a drag and drop, from the beginning of the idea has been more than a year.
Datagrid/datalist in the asp.net of importance, I must not stress again, where the table type of data
Asp.net|datagrid|datagrid Control | tips
one. Overview:
In the process of developing a Web application using ASP.net, the DataGrid is a very important control, and almost any data-related performance needs to be used for that control. So mastering the application skills of the DataGrid control is essential to every we
DataGrid/datalist, will you use it?
A long time ago, I wanted to write something about DataGrid/datalist. However, on the one hand, I have not learned much about myself, and on the other hand, I have never been able to get started, it has been more than a year since the beginning.DataGrid/datalist in ASP. net, I do not need to emphasize any more. Most of the two controls will be used for displaying table d
Datagrid/datalist is very important in ASP, where data of table type is displayed, most of these controls are used.First, the method1, DataBindVery simple, the most common method. Bind data with. There is only one point to note: After this method is executed, the DataGrid (because the DataGrid and DataList are very similar, so the following description is for the
1. JSON data is:{"rows": [{"ItemNo": "1","ItemName": "12","Spec": "","Pattern": "","Itemcategory": {"id": "A01","Name": "Chinese Herbal Medicine"},"Itemunit": {"id": "B01","Name": "KG"},"Uploadfilename": null},],}2. Its corresponding Java class is:public class PagemodelResult setPrivate listrows;Getter and Setter methods}Note: Because the DataGrid component in Easyui processes this data, the default is to u
You have already known how to make you long DataGrid scrollable, however, when you scroll the grid, the header of the DataGrid scrolls away. to make scrollable DataGrid more user friendly, you may want to "freeze" the header while scrolling, and sometimes you may need to "freeze" your columns like Excel spreedsheet. there are some third party components around to
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