回答編集履歴
1
サンプルコードをもう少し分かりやすく修正
answer
CHANGED
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@@ -15,6 +15,17 @@
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15
15
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{
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16
16
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protected void Page_PreInit(object sender, EventArgs e)
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17
17
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{
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18
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// >>> TEST >>>>>>>>>>>>>>>>>>>>
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19
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ddlHoge.DataSource = new SqlDataSource()
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20
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{
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21
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ConnectionString = "Data Source=.\\SQLExpress;Initial Catalog=master;User ID=sa;Password=root;",
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22
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SelectCommand = " SELECT '111' AS id, 'one' AS name UNION ALL" +
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23
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" SELECT '222' AS id, 'two' AS name UNION ALL" +
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24
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" SELECT '333' AS id, 'three' AS name"
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25
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};
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26
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ddlHoge.SelectedIndex = 1;
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27
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// <<< TEST <<<<<<<<<<<<<<<<<<<<
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28
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18
29
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Debug.WriteLine("★Page_PreInit [" + ddlHoge.SelectedValue + "]");
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30
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}
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20
31
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@@ -50,15 +61,6 @@
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50
61
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62
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private void Test()
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63
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{
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53
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-
ddlHoge.DataSource = new SqlDataSource()
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54
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{
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ConnectionString = "Data Source=.\\SQLExpress;Initial Catalog=master;User ID=sa;Password=root;",
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56
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SelectCommand = " SELECT '111' AS id, 'one' AS name UNION ALL" +
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57
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" SELECT '222' AS id, 'two' AS name UNION ALL" +
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58
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" SELECT '333' AS id, 'three' AS name"
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59
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};
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60
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-
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61
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ddlHoge.SelectedIndex = 1;
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64
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Debug.WriteLine("◇this.DataBind() 前 [" + ddlHoge.SelectedValue + "]"); // 取れない
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63
65
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64
66
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this.DataBind();
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